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2

However, it should be emphasized that these actives will be leaching along with zinc pyrithione 

from these paints into the aquatic environment, and adverse affects to aquatic organisms may 

occur from simultaneous exposure to both active ingredients. Some literature data are available 

demonstrating synergist effects when zinc and copper occur together, and transchelation also 

may occur in the presence of other metals (e.g., manganese). Such risk is acknowledged in the 

assessment but is not addressed quantitatively.

Exposure scenarios modeled (MAM-PEC) for ZnPt in aquatic environments include inland and 

coastal marinas and an estuarine harbor. EECs are calculated for the water column and sediment 

within each setting. RASSB's hazard and risk conclusions are summarized below and presented 

in more detail in the attached ecological risk assessment. 

Ecological Hazard and Risk Conclusions:

 • ZnPt is very highly toxic to freshwater and saltwater fish and aquatic invertebrates and 

slightly to moderately toxic to terrestrial animals; based on acute toxicity, a precautionary 

hazards statement is required for aquatic organisms (see label requirements below)

 • For indoor uses, minimal exposure and risks are expected for terrestrial and aquatic 

organisms; therefore, a risk assessment is not conducted for those uses. 

 • For antifoulant use, two freshwater (inland) and two saltwater (coastal) scenarios were 

modeled using exposure predictions from MAM-PEC. The following LOCs are 

exceeded for acute and chronic risks to aquatic organisms exposed to ZnPt in the water 

column: 

LOCs exceeded

Scenario Listed spp.2 Non-listed spp.

Inland Marina: Fish, acute

Aquatic invertebrates, acute

None

Inland Small Marina: Fish, acute

Fish, chronic

Aquatic invertebrates, acute

Aquatic plants

Fish, acute

Fish, chronic

Aquatic plants

Coastal Marina: Aquatic invertebrates, acute None

Coastal Harbor: None None

 

 • Based on extremely low predicted concentrations in sediment after one year in relation to 

the sediment-based toxicity of ZnPt to freshwater and marine amphipods, minimal risks 

are presumed for exposure to sediment containing ZnPt leached from watercraft hulls

 

2 Federally designated endangered or threatened species
3

 • Synergistic toxic effects of ZnPt and Copper on aquatic organisms are reported in the 

literature; because copper also is an active ingredient in most of the formulated ZnPt 

antifoulant products, acute and chronic risk estimates in this assessment may 

underestimate actual risks and strongly emphasizes the need for testing mixtures of the 

active ingredients contained in the formulated products

 • Two degradates tested are only slightly to practically nontoxic to aquatic plants and 

animals

 • ZnPt is not presumed to pose risks to terrestrial animals, due to its low toxicity to birds 

and mammals and little potential for bioaccumulation

Label requirements: 

All product labels must have the following ENVIRONMENTAL HAZARDS statement: 

"This pesticide is toxic to fish and other aquatic organisms. Do not apply directly to water 

by cleaning of equipment or disposal of wastes. Do not allow chips and dust generated 

during paint removal to enter water. Do not discharge effluent containing this product 

into lakes, streams, ponds, estuaries, oceans, or other waters unless in accordance with 

the requirements of a National Pollutant Discharge Elimination System (NPDES) permit 

and the permitting authorities are notified in writing prior to discharge. Do not discharge 

effluent containing this product to sewer systems without previously notifying the local 

sewage treatment plant authority. For guidance contact your State Water Board or 

Regional Office of the EPA." 

Required guideline studies for antifoulant use:

Indoor uses 

The ecological effects database is adequate to support the current indoor uses.

Antifoulant use

No additional guideline studies are required at this time. However, when additional information 

becomes available (see below) to enable a more refined risk assessment for U. S. waters, the 

following studies may be required:

Fish life cycle (850.1500) - reserved; and

Monitoring of representative U. S. waters (no guideline number) – reserved [If 

environmental monitoring data, based on the additional information cited below, do not 

show that EECs are much lower than those calculated by the Agency (resulting in a lack

of LOC exceedances for all tested species), then actual field residue monitoring data from 

multiple locations may be required. Such monitoring would determine levels of zinc, 
4

zinc pyrithione, and/or major metabolites/degradates in surface waters and sediments 

where major boat/ship use may occur. Submission and Agency approval; of a protocol is 

required before this study is undertaken. Further, note that levels of zinc and other 

chemical species determined from this field study would need to be low enough such that 

calculation of RQs would result in a lack of LOC exceedances for all tested species.]

Additional information needed for antifoulant use:

Additional information is needed to better refine the risk assessment for U. S. harbors and 

marinas. Such information includes but is not limited to the following:

 • Dimensions of marinas and harbors

 • Number and sizes of watercraft in the facility, including seasonal and geographical 

variations

 • Environmental inputs including tides and currents, water temperature, salinity, pH, 

sediment density, and others

Acknowledgements

Thanks to the following RASSB scientists for their contribution to the ecological risk 

assessment:

S. Mostaghimi, Senior Scientist: MAM-PEC modeling 

J. Breithaupt, Agronomist: environmental fate 

 N. Shamim: environmental fate
5

Table of Contents

Ecological Hazards and Risk Assessment: Zinc Pyrithione . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

 Ecological Hazards Assessment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

 Ecological Risk Assessment and Characterization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Environmental Fate Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Aquatic Exposure Assessment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

 MAM-PEC Scenarios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

 MAM-PEC EECs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Aquatic Risk Assessment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

 Freshwater Fish and Invertebrates Exposed in the Water Column, Acute. . . . . . . . . . . . 14

 Estuarine/marine Fish and Invertebrates Exposed in the Water Column, Acute . . . . . . .15

 Aquatic Organisms Exposed in the Water Column, Chronic. . . . . . . . . . . . . . . . . . . . . . 16

 Invertebrates Exposed to Contaminated Sediments, Acute . . . . . . . . . . . . . . . . . . . . . . . 19

 Aquatic Plants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Aquatic Risk Characterization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Terrestrial Risk Assessment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Endangered Species Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

A: Data Requirements and Available Guideline Ecotoxicity Data . . . . . . . . . . . . . . . . . . . 26

 B: MAM-PEC Runs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . 33
6

Ecological Hazards and Risk Assessment

Zinc Pyrithione (ZnPt)

ZnPt is registered for both indoor and outdoor antimicrobial uses. Outdoor use is limited to 

antifoulant paints applied to recreational and commercial boat hulls (below the water line) for

control of slime, algae, and marine fouling organisms (e.g., barnacles, tubeworms) in fresh, salt, 

or brackish water. The antifoulant paints are applied by brush, roller, or by spraying (airless).

Indoor uses include preservative use in food packaging adhesives, food packaging materials, 

conveyor belts, and repeat use polymeric food contact materials, control of bacterial growth on 

laundered products, preservation of adhesives, caulks, patching compounds, sealants, grouts, 

latex paints, coatings, dry wall, gypsum, pearlite, plaster, and ductwork (HVAC use). ZnPt also

is used for the control of mildew in nonfood contact polymers and control of mildew and bacteria 

in styrene butadiene rubber and thermoplastic resins (e.g. air ducts). Materials preservation uses 

include in-can preservation of clay, mineral, pigment and guar gum slurries, latex emulsions, and 

similar high solids aqueous media.

For all currently registered indoor and outdoor uses, a hazards assessment is conducted to meet 

current labeling requirements for precautionary statements for all ZnPt products and to determine 

hazard endpoints for the ecological risk assessment. A risk assessment is conducted for the 

antifoulant use, because the intended application of ZnPt paints to boat hulls will result in 

exposure of aquatic organisms due to leaching of the active ingredient from treated hulls into the 

aquatic environment. 

Ecological Hazards Assessment

The toxicity endpoints used in OPP's assessments are obtained from guideline toxicity studies 

conducted for wildlife, aquatic organisms, and plants (40 CFR §158). Guideline studies are 

required to provide acute and reproductive/chronic measures of effect for one or more test 

species in several taxonomic groups. Some studies are only required on a case-by-case basis, 

depending on factors such as use patterns and environmental fate characteristics. 

The full complement of acute and chronic ecotoxicity data available for ZnPt and two degradates

(pyridine sulfonic acid and pyrithione sulfonic acid) are presented in Appendix A. The most 

sensitive species in each taxa/group is used in the assessment. Those data are tabulated below 

(Table 1). The data characterize ZnPt as being highly to very highly toxic freshwater and 

saltwater fish and invertebrates and slightly to moderately toxic to birds and mammals. A 

precautionary hazards label statement is required for aquatic organisms.
7

Table 1. Ecotoxicity Data Used in the Hazard and Risk Assessment

Category/

 Species

Measurement

endpoint

Toxicity

endpoint

Toxicity

category

Birds:

 Northern bobwhite acute LD50 60 mg ai/kg bw moderately toxic

dietary LC50 1063 ppm ai slightly toxic

Mammals:

 Laboratory rat acute LD50 630 mg ai/kg bw (♂)

460 mg ai/kg bw (♀)

slightly to moderately 

toxic

Freshwater fish:

 Fathead minnow acute LC50 2.6 μg ai/L very highly toxic

chronic NOEC 1.2 μg ai/L

Freshwater invertebrates:

 Waterflea acute EC50 8.2 μg ai/L very highly toxic

chronic NOEC 2.7 μg ai/L

Estuarine/marine fish:

 Sheepshead minnow acute LC50 400 μg ai/L highly toxic

chronic NOEC no data

Estuarine/marine invertebrates:

 Mysid shrimp acute LC50 4.7 μg ai/L very highly toxic

chronic NOEC 2.2 μg ai/L

Aquatic plants:

 Duckweed EC50 8.8 μg ai/L n/a

NOEC 4.0 μg ai/L

 Freshwater diatom EC50 2.6 μg ai/L n/a

 Saltwater diatom EC50 0.65 μg ai/L n/a

Sediment toxicity:

 Freshwater amphipod EC50 or LC50 2.1 mg/kg dry wt n/a

 Saltwater amphipod EC50 or LC50 <1.08 mg/kg dry wt n/a

The toxicity data for the two degradates tested are presented in Tables 5A, 6A, and 8A in 

Appendix A. The degradates are only slightly to practically nontoxic to aquatic organisms.
8

Ecological Risk Assessment and Characterization Methods

Risk assessment and characterization integrates exposure and toxicity information to evaluate the 

potential for adverse ecological effects. Risk quotients (RQs) are determined for each taxa or 

ecological group by comparing exposure estimates (Estimated Environmental Concentrations, 

EECs) to the available acute and chronic ecotoxicity values, where: 

RQ = Exposure estimate (EEC) / Toxicity value

RQs are compared to OPP's levels of concern (LOCs). Exceedance of an LOC indicates a 

potential for acute or chronic adverse effects on nontarget organisms and identifies a need for 

regulatory action to mitigate risk. LOCs currently address the following risk presumptions: 

acute: regulatory action may be warranted to reduce or preclude 

acute exposure

acute, listed species: additional regulatory action may be warranted to protect 

listed (i.e., endangered or threatened) species

chronic: regulatory action may be needed to reduce or preclude 

chronic exposure 

The LOCs for the various risk presumptions are listed below for terrestrial and aquatic animals 

and plants:

Aquatic 

Animals

Terrestrial 

Animals Plants

Acute: 0.5 0.5 1

Acute, listed species: 0.05 0.1 1

Chronic: 1 1 n/a

The following toxicity endpoints are used as inputs to the RQ method for expressing risk: 

Aquatic Animals

Acute: Lowest tested EC50 or LC50 for freshwater fish and 

invertebrates and estuarine/marine fish and invertebrates 

Chronic: Lowest NOEC for freshwater fish and invertebrates and 

estuarine/marine fish and invertebrates (early life-stage or 

full life-cycle tests)

Terrestrial Animals

Avian acute: Lowest LD50 (single oral dose) and LC50 (subacute 

dietary)

Avian chronic: Lowest NOEC (21-week avian reproduction test)

Mammalian 

acute:

Lowest LD50 from single oral dose test.
9

Mammalian

chronic:

Lowest NOEC for two-generation reproduction test

Plants

Terrestrial: Lowest EC25 values from both seedling emergence and 

vegetative vigor for both monocots and dicots

Terrestrial

listed:

Lowest EC05 or NOEC for both seedling emergence and 

vegetative vigor for both monocots and dicots

Aquatic vascular

and algae:

Lowest EC50 

Aquatic vascular

listed:

NOEC or EC05

When available, toxicity measures or other appropriate information from non-guideline studies 

or from the open literature also may be used to characterize risk. 

OPP generally uses computer simulation models to estimate exposure of aquatic organisms to an 

active ingredient. These models estimate EECs in surface waters and sediment using productlabel information (e.g., treatment site, application rate, application method,) and available 

environmental-fate data to determine how fast the pesticide breaks down and its expected 

movement in the environment. The model used in the current risk assessment is described in 

more detail in the Aquatic Exposure Assessment section.

For aquatic organisms, the following EECs are used to calculate the RQ for each taxa:

Fish

Acute: Instantaneous 

Chronic: 60-day average

Invertebrates

Acute: Instantaneous

Chronic: 21-day average

Plants

Acute: Instantaneous

Chronic: Not applicable 

Environmental Fate Summary

The following environmental fate summary is from the AD/RASSB's Environmental Fate 

Science Chapter on Zinc Pyrithione (Zinc Omadine®) For Reregistration Eligibility Document 

(RED)3:

 

3 Environmental Fate Science Chapter on Zinc Pyrithione (Zinc Omadine®) For Reregistration 
10

Zinc Pyrithione (Zinc Omadine®) appears hydrolytically stable in abiotic, buffered and 

simulated water systems. Photolytically, however, it rapidly degrades with a half life of 13 

minutes in buffered aqueous medium and 17 minutes in simulated sea water. 

There are multiple degradation pathways for zinc pyrithione. Under aerobic conditions, zinc 

pyrithione degradation half life is 0.6 hours in aqueous system and 0.89 days in sediment. 

Similarly zinc pyrithione shows a tendency of degrading anaerobically in water within 0.5 hours 

and in about 19 hours in sediments. 

Zinc pyrithione shows a moderately strong tendency to bind with soils and sediments: With salt 

water soil and sediment its Kds are 50 and 99 respectively. Tendency to bind with freshwater soils 

and sediments are less strong and observed Kds are 11 and 48 respectively. There may be a shortlived water/sediment partitioning issue. There could be an acute adverse impact on benthic 

aquatic organisms. However, since it degrades fairly quickly in freshwater and saltwater soils and 

sediments (half lives 0.89 days to 19 hours), the acute adverse impact may be very short-lived. It 

is not likely to persist in water and microbial soils and sediments.

Reported Octanol/Water Partition coefficient KOW is < 1000, and therefore zinc pyrithione is not 

likely to bioaccumulate in aquatic organisms.

Aquatic Exposure Assessment

EECs in the water column and sediment are estimated using MAM-PEC (v. 2.0)4,5. The MAMPEC model was developed by the Institute of Environmental Studies/IVM and Delft Hydraulics 

for the European Paint Makers Association to predict environmental concentrations of 

antifoulant paints/coatings in various marine environments (e.g., marinas, harbors, surrounding 

waters). The model accounts for a variety of emission factors (e.g., leaching rate, watercraft 

numbers and sizes, residence times, watercraft-hull underwater surface areas), compound-related 

properties and processes (e.g., Kd, Kow, Koc, volatilization, speciation, hydrolysis, photolysis, 

biodegradation), and environmental properties and processes (e.g. currents, tides, salinity, DOC, 

suspended matter load, port dimensions). The default scenarios in MAM-PEC allow the user to 

alter input values for the specific locality being assessed if data are available. For example, the 

 

Eligibility Document (RED), April 14, 2004, A. Najm Shamim, Regulatory Management Branch 

II, Antimicrobials Division

4

van Hattum B., A.C Baart, and J.G. Boon. 2002. Computer model to generate predicted

environmental concentrations (PECs) for antifouling products in the marine environment - 2nd 

ed. accompanying the release of Mam-Pec version 1.4, IVM Report (E-02/04), Institute for 

Environmental Studies, Vrije Universiteit, Amsterdam, Netherlands.

5 OECD. 2005. Emission Scenario Document on Antifouling Products. OECD Environmental 

Health and Safety Publications, OECD Series on Emission Scenario Documents No. 13, 

ENV/JM/MONO(2005)8, Organisation for Economic Co-operation and Development, 166 pp.
11

dimensions of the default marina (see below) can be altered for the known dimensions of a 

specific marina, or to predict aquatic EECs for marinas of different sizes. The number and sizes 

of watercraft also can be changed, as well as the percentage of craft treated if actual usage 

information is obtained. With a few modifications (e. g., latitude, water temperature, salinity and 

tidal factors), RASSB is using the default scenarios provided by MAM-PEC that were also used 

in RASSB's 2008 assessment for copper pyrithione6. These scenarios can be further refined 

when additional information on the dimensions and physical and chemical properties of U. S. 

coastal and inland marinas and harbors become available. 

The estimated leaching rate of zinc pyrithione from painted hulls was determined from leaching 

studies conducted by the registrant and submitted to and reviewed by RASSB. Leaching data are 

available for 13 paint formulations7. The highest leaching rate was from International Copperfree White Paint, with a maximum average leach rate of 14.3 μg/cm2

/day. Three other 

formulations had leaching rates that exceeded 10 μg/cm2/day. The formulation with the lowest 

leaching rate (4.5 μg/cm2/day) was Ecoflex BEA469/G044 Paint. MAM-PEC was run using the 

highest and lowest rates. For each leaching rate, maximum and average EECs are predicted for 

the water column and over time (1 to 10 years) in sediment, both within the marina or harbor and 

in the surrounding waters. For each scenario, in the absence of any usage information, it is 

assumed that 100% of the craft are treated. If usage information becomes available, the 

scenarios can be refined to reflect that information. The EECs generated by MAM-PEC are used 

for both acute and chronic exposure. 

MAM-PEC Scenarios

The inland (freshwater) and coastal (saltwater) marina and harbor scenarios used in this 

assessment (and the copper pyrithione assessment) are briefly described below. Details of the 

specific runs, including all input values and predicted water-column and sediment EECs are 

provided in Appendix B. Further descriptions of the MAM-PEC model default scenarios are 

provided in the OECD (2005) Emission Scenario Document on Antifouling Products. 

Inland Marina

MAM-PEC scenario: default estuarine harbor (no tidal factors, minimal salinity) 

Dimensions: 400 x 400 m, 3.5 m deep

No. craft at berth: 299 (10-5 m in length)

Underwater area of individual craft: 22.5 m2

See Appendix B for additional specifications on this scenario

 

6 Ecological Hazards and Risk Assessment for Copper Pyrithione, November 18, 2008, W. 

Erickson, AD/RASSB

7 Environmental Fate Science Chapter on Zinc Pyrithione (Zinc Omadine®) and Proposed 

Bridging to Copper Pyrithione, October 14, 2008, J. Breithaupt, AD/RASSB
12

Inland Small Marina

MAM-PEC scenario: modified default Swiss marina scenario from OECD (2005)

Dimensions: 100 x 100 m, 2 m deep

No. craft at berth: 75 (<10 m in length)

Underwater area of individual craft: 10 m2

See Appendix B for additional specifications on this scenario

Coastal Marina

MAM-PEC scenario: default marina 

Dimensions: 400 x 400 m, 3.5 m deep

No. craft at berth: 299 (10-50 m in length)

Underwater area of individual craft: 22.5 m2

See Appendix B for additional specifications on this scenario

Coastal Harbor 

MAM-PEC scenario: default estuarine harbor

Dimensions: 1000 x 5000 m, 15 m deep

No. craft at berth: 24 (50-100 m to 250-300 m in length)

Underwater area of individual craft: 450 to 14,814 m2

See Appendix B for additional specifications on this scenario

MAM-PEC EECs

MAM-PEC predicted EECs in the water column are presented in Table 2 for the inland scenarios 

and in Table 3 for the coastal scenarios. Table 4 presents the MAM-PEC predicted maximum 

sediment concentrations after one year in the marina or harbor and in the surrounding waters. 

Average predicted sediment concentrations did not change after two, five, and 10 years (see 

Appendix B). These predictions are further discussed in the Aquatic Risk Assessment section 

entitled Invertebrates Exposed to Contaminated Sediments, Acute. 

Table 2. MAM-PEC Predicted Water-column EECs for Inland Marinas and Surrounding 

Waters

Leaching rate 

(g/cm2/day)

Marina or Harbor

EEC (μg/L)

Surrounding-water

EEC (μg/L)

max. avg. max. avg.

Inland Marina:

14.3 0.639 0.421 0.037 0.002

4.5 0.201 0.132 0.012 <0.001
13

Inland Small Marina:

14.3 10.8 6.83 0.433 0.041

4.5 3.41 2.15 0.136 0.014

Table 3. MAM-PEC Predicted Water-column EECs for Coastal Marinas and Harbors and 

Surrounding Waters

Leaching rate 

(g/cm2/day)

Marina or Harbor

EEC (μg/L)

Surrounding-water

EEC (μg/L)

max. avg. max. avg.

Coastal Marina:

14.3 0.639 0.421 0.037 0.002

4.5 0.201 0.132 0.012 <0.001

Coastal Harbor:

14.3 0.157 0.077 0.025 0.005

4.5 0.049 0.024 0.008 0.002

Table 4. MAM-PEC Predicted Maximum Sediment Concentrations for Inland and Coastal 

Marinas and Harbors 

Environment Leaching rate 

(g/cm2/day)

Max. concentration (μg/g dry wt) after 1 year

marina or harbor surrounding waters

Inland Marina

14.3 1.92E-07 1.12E-08

4.5 6.03E-08 3.54E-09

Inland Small Marina

14.3 3.25 E-06 1.30E-07

4.5 1.02 E-06 4.09E-08

Coastal Marina

14.3 9.58E-07 5.62E-08

4.5 3.02E-07 1.77E-08

Coastal Harbor

14.3 2.35E-07 3.74E-08

4.5 7.40E-08 1.18E-08
14

Aquatic Risk Assessment

Freshwater Fish and Invertebrates Exposed in the Water Column, Acute

RQs based on acute toxicity to the most sensitive freshwater fish species (fathead minnow) and 

invertebrate species (waterflea) exceed the acute LOC for listed (e.g., threatened and 

endangered) species in the inland marina scenarios, even when RQs are based on average EECs 

(Tables 5 and 6). Nonlisted fish also are at risk from high exposure in small marinas. The LOC 

also is exceeded for listed fish and aquatic invertebrates in the waters surrounding small inland 

marinas.

Table 5. Acute Risk Quotients for Freshwater Fish and Invertebrates Exposed in the 

Water Column of an Inland Marina (400 x 400 m, 3.5 m deep) and Surrounding Waters

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) LC50/EC50

(μg ai/L)

Acute RQ

max. avg max. avg

Inland Marina:

Fish

14.3 0.639 0.421

2.6

0.25* 0.16*

4.5 0.201 0.132 0.08* 0.05*

Invertebrates

14.3 0.639 0.421

8.2

0.08* 0.05

4.5 0.201 0.132 0.02 0.02

Surrounding waters:

Fish

14.3 0.037 0.002

2.6

0.01 <0.01

4.5 0.012 <0.001 <0.01 <0.01

Invertebrates

14.3 0.037 0.002

8.2

0.01 <0.01

4.5 0.012 <0.001 <0.01 <0.01

 * exceeds the LOC for listed species (RQ >0.05)
15

Table 6. Acute Risk Quotients for Freshwater Fish and Invertebrates Exposed in the 

Water Column of an Inland Small Marina (100 x 100 m, 2 m deep)

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) LC50/EC50

(μg ai/L)

Acute RQ

max. avg max. avg

Inland Small Marina:

 Fish

14.3 10.8 6.83

2.6

4.1** 2.6**

4.5 3.41 2.15 1.3** 0.8**

Invertebrates

14.3 10.8 6.83

8.2

1.3** 0.8**

4.5 3.41 2.15 0.4* 0.3*

Surrounding waters:

 Fish

14.3 0.433 0.041

2.6

0.2* 0.02

4.5 0.136 0.014 0.05* <0.01

Invertebrates

14.3 0.433 0.041

8.2

0.05* <0.01

4.5 0.136 0.014 0.02 <0.01

** exceeds the LOC for listed (RQ >0.05) and non-listed (RQ >0.5) species

 * exceeds the LOC for listed species

Estuarine/marine Fish and Invertebrates Exposed in the Water Column, Acute

RQs based on acute toxicity to the sheepshead minnow and mysid shrimp and maximum and 

average EECs in the water column exceed the acute LOC only for listed invertebrates in the 

coastal marina scenario (Table 7). No LOC is exceeded for the harbor scenario, even at 

predicted maximum exposure (Table 8), or in the waters surrounding the marina. 

Table 7. Acute Risk Quotients for Saltwater Fish and Invertebrates Exposed in the Water 

Column of a Coastal Marina and Surrounding Waters

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) LC50

(μg ai/L)

Acute RQ

max. avg max. avg

Coastal Marina:

 Fish

14.3 0.639 0.421

400

<0.01 <0.01

4.5 0.201 0.132 <0.01 <0.01

Invertebrates 14.3 0.639 0.421 4.7 0.14* 0.09*
16

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) LC50

(μg ai/L)

Acute RQ

max. avg max. avg

4.5 0.201 0.132 0.04 0.03

Surrounding waters:

Fish

14.3 0.037 0.002

400

<0.01 <0.01

4.5 0.012 <0.001 <0.01 <0.01

Invertebrates

14.3 0.037 0.002

4.7

<0.01 <0.01

4.5 0.012 <0.001 <0.01 <0.01

*exceeds the LOC for listed species (RQ >0.05) 

Table 8. Acute Risk Quotients for Saltwater Fish and Invertebrates Exposed in the Water 

Column of a Coastal Harbor and Surrounding Waters

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) LC50

(μg ai/L)

Acute RQ

max. avg max. avg

Coastal Harbor:

Fish

14.3 0.157 0.077

400

<0.01 <0.01

4.5 0.049 0.024 <0.01 <0.01

Invertebrates

14.3 0.157 0.077

4.7

0.03 0.02

4.5 0.049 0.024 0.01 <0.01

Surrounding waters:

Fish

14.3 0.025 0.005

400

<0.01 <0.01

4.5 0.008 0.002 <0.01 <0.01

Invertebrates

14.3 0.025 0.005

4.7

<0.01 <0.01

4.5 0.008 0.002 <0.01 <0.01

Aquatic Organisms Exposed in the Water Column, Chronic

The chronic LOC is exceeded for listed and nonlisted freshwater fish and invertebrates 

inhabiting small inland marinas, even for average leaching EECs from the lowest leaching rate 
17

(Table 10). Minimal chronic risk exists for larger inland marinas (Table 9) or for coastal marinas 

and harbors (Tables 11, 12). 

Table 9. Chronic Risk Quotients for Freshwater Fish and Invertebrates Exposed in the 

Water Column of an Inland Marina (400 x 400 m, 3.5 m deep) and Surrounding Waters

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) NOEC

(μg ai/L)

Chronic RQ

max. avg max. avg

Inland Marina:

Fish

14.3 0.639 0.421

1.2

0.5 0.4

4.5 0.201 0.132 0.2 0.1

Invertebrates

14.3 0.639 0.421

2.7

0.2 0.2

4.5 0.201 0.132 <0.1 <0.1

Surrounding waters:

Fish

14.3 0.037 0.002

1.2

<0.1 <0.1

4.5 0.012 <0.001 <0.1 <0.1

Invertebrates

14.3 0.037 0.002

2.7

<0.1 <0.1

4.5 0.012 <0.001 <0.1 <0.1

Table 10. Chronic Risk Quotients for Freshwater Fish and Invertebrates Exposed in the 

Water Column of an Inland Small Marina (100 x 100 m, 2 m deep)

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) NOEC

(μg ai/L)

Chronic RQ

max. avg max. avg

Inland Small Marina:

 Fish

14.3 10.8 6.83

1.2

9.0* 5.7*

4.5 3.41 2.15 2.8* 1.8*

Invertebrates

14.3 10.8 6.83

2.7

4.0* 2.5*

4.5 3.41 2.15 1.3* 0.8
18

Surrounding waters:

Fish

14.3 0.433 0.041

1.2

0.4 <0.1

4.5 0.136 0.014 0.1 <0.1

Invertebrates

14.3 0.433 0.041

2.7

0.2 <0.1

4.5 0.136 0.014 <0.1 <0.1

* exceeds the chronic LOC (RQ >1) for listed and nonlisted species

Table 11. Chronic Risk Quotients for Saltwater Invertebrates Exposed in the Water 

Column of a Coastal Marina and Surrounding Waters

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) NOEC

(μg ai/L)

Chronic RQ

max. avg max. avg

Coastal Marina:

Invertebrates

14.3 0.639 0.421

2.2

0.3 0.2

4.5 0.201 0.132 <0.1 <0.1

Surrounding waters:

Invertebrates

14.3 0.037 0.002

2.2

<0.1 <0.1

4.5 0.012 <0.001 <0.1 <0.1

Table 12. Chronic Risk Quotients for Saltwater Fish and Invertebrates Exposed in the 

Water Column of a Coastal Harbor and Surrounding Waters

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) NOEC

(μg ai/L)

Chronic RQ

max. avg max. avg

Coastal Harbor:

Invertebrates

14.3 0.157 0.077

2.2

<0.1 <0.1

4.5 0.049 0.024 <0.1 <0.1
19

Surrounding waters:

Invertebrates

14.3 0.025 0.005

2.2

<0.1 <0.1

4.5 0.008 0.002 <0.1 <0.1

Invertebrates Exposed to Contaminated Sediments, Acute

Minimal risk is presumed for benthic organisms exposed to ZnPt in sediments of marinas or 

harbors. RQs based on the highest maximum sediment concentrations are orders of magnitude 

below the LOC (Table 13). RQs based on average EECs and lower leaching rates would be even 

lower than those tabulated for the highest exposure scenarios. Some uncertainty exists for 

saltwater invertebrates, because a definitive toxicity value was not established. However, 

because the exposure values are exceedingly low, it seems highly unlikely that establishing the 

toxicity to saltwater invertebrates would lead to any exceedance of the LOC. 

Table 13. Acute Risk Quotients for Freshwater and Saltwater Invertebrates Exposed to 

Contaminated Sediment in Inland and Coastal Marinas

Site/

 Taxa

Leaching rate

(g/cm2/day)

Max. EEC

(μg/g dry wt)

Toxicity

(μg/g dry wt)

Max.

Acute RQ

Inland Small Marina:

Freshwater amphipod 14.3 0.00000013 2100 <<1

Coastal Marina:

Saltwater amphipod 14.3 0.00000006 <1080 not 

determined

It needs to be noted that MAM-PEC predicted sediment concentrations after 2, 5, and 10 years 

are the same as those predicted after one year. Those predictions are based solely on the initial 

exposure at Day 0 and do not consider any subsequent copper pyrithione input into the aquatic 

environment. In fact, existing watercraft would be retreated, new craft may be treated, and other 

treated craft may be entering marinas. Therefore, sediment concentrations might actually 

increase over time, not remain constant, and this adds some uncertainty to the exposure and risk 

assessment.

Aquatic Plants

RQs for nonlisted species are presented in Table 14 for both freshwater and saltwater aquatic 

plants, based on the various exposure scenarios and the toxicity to duckweed (vascular sp.) and 

the most sensitive non-vascular species (algae or diatom). The LOC is exceeded for vascular and 
20

non-vascular species in small inland marinas. The LOC for listed vascular species also is 

exceeded for small inland marinas (Table 15).

Table 14. Risk Quotients for Nonlisted Aquatic Plant Species (vascular and non-vascular) 

Exposed in the Water Column of Inland and Coastal Marinas and Harbors

 Site/

 Taxa

Leaching rate

(g/cm2/day)

EEC (μg ai/L) EC50

(μg ai/L)

RQ

max. avg max. avg

Inland Marina:

Vascular spp.

14.3

0.639 0.421 8.8 <0.1 <0.1

Non-vascular spp. 0.639 0.421 2.6 0.2 0.2

Inland Small Marina:

Vascular spp.

14.3 10.8 6.83

8.8

1.2* 0.8

4.5 3.41 2.15 0.4 0.2

Non-vascular spp.

14.3 10.8 6.83

2.6

4.1* 2.6*

4.5 3.41 2.15 1.3* 0.8

Coastal Marina:

Vascular spp. 14.3 0.639 0.421 8.8 <0.1 <0.1

Non-vascular spp. 14.3 0.639 0.421 0.65 0.9 0.6

Coastal Harbor:

Vascular spp.

14.3

0.157 0.077 8.8 <0.1 <0.1

Non-vascular spp. 0.157 0.077 0.65 0.2 0.1

 * exceeds the LOC (RQ >1) for nonlisted species
21

Table 15. Risk Quotients for Listed Vascular Aquatic Plant Species Exposed in the Water 

Column of Inland and Coastal Marinas and Harbors

 Site/

 Taxa

Leaching 

rate

(g/cm2/day)

EEC (μg ai/L) NOEC

(μg ai/L)

RQ

max. avg max. avg

Inland Marina:

Vascular spp.

14.3 0.639 0.421

4.0

0.2 0.1

4.5 0.201 0.132 <0.1 <0.1

Inland Small Marina:

Vascular spp.

14.3 10.8 6.83

4.0

2.7* 1.7*

4.5 3.41 2.15 <0.1 <0.1

Coastal Marina:

Vascular spp.

14.3 0.639 0.421

4.0

0.2 0.1

4.5 0.201 0.132 <0.1 <0.1

Coastal Harbor:

Vascular spp.

14.3 0.157 0.077

4.0

<0.1 <0.1

4.5 0.049 0.024 <0.1 <0.1

 * exceeds the LOC (RQ >1) for listed species

Aquatic Risk Characterization

Based on the risk quotient methodology and the Agency’s Levels of Concern, ZnPt use as an 

antifoulant coating to boat hulls poses acute and chronic risks to freshwater fish and invertebrates 

exposed to leachate in the water column. Vascular and non-vascular aquatic plants also are at 

risk in small freshwater marinas. Although the LOC also is exceeded for listed saltwater 

invertebrates, there currently are no federally listed species. EECs were not modeled for the 

degradates, but the available toxicity data indicate that they are only slightly to practically 

nontoxic and likely to pose minimal acute and chronic risks. MAM-PEC predicted 

concentrations in sediment are much too low to be hazardous to benthic invertebrates. 

Environmental exposure modeling was not conducted for the indoor uses (materials preservative) 

of ZnPt. Exposure to terrestrial and aquatic organisms is expected to be minimal from the indoor 

uses. Therefore, an ecological risk assessment was not conducted for those uses.
22

Exposure Uncertainties: For the antifoulant screening assessment, RASSB relyies on the 

MAM-PEC European scenarios, with minor modifications (e.g., temperature, pH) for expected 

U. S. conditions. The MAM-PEC scenarios consider many measured variables for European 

settings, including hydrological and environmental factors, compartment sizes (e.g., marinas, 

harbors), and watercraft sizes and numbers in marinas and harbors. For example, the default 

marina scenario in MAM-PEC is based on an actual French Mediterranean marina in the Golfe 

Juan (Van Hattum et al. 2002). The extent to which these European conditions approximate 

those of U. S. marinas and harbors is unknown and needs to be determined. The risk assessment 

could be refined if such information on U. S. coastal and inland marinas and harbors were 

available. Such relevant information would include environmental and hydrological conditions, 

typical dimensions (and range of dimensions) of freshwater and coastal marinas and harbors, 

number and sizes of watercraft, antifoulant usage, geographical variations in these factors, and 

others. Potential risks also are largely dependent on the extent of exposure to the leachate. 

Leaching rates vary among the 13 paint formulations for which data are available, and many 

uncertainties exist in the exposure assessment. 

Toxicity Uncertainties: The risk presumptions in this assessment are based solely on the ZnPt 

component of the antifoulant paints. RASSB only assesses risks from individual active 

ingredients, but several products containing ZnPt (3.04-4.78% ai) also contain cuprous oxide 

(34.34-45.48% ai), cuprous thiocyanate (16.95% ai), or econea (3.90% ai) as an additional 

antifoulant ingredient. Leaching of those active ingredients may exacerbate the risks posed 

solely by ZnPt. Cuprous oxide, for example, also is highly toxic to aquatic organisms, and 

combined exposure to these two active ingredients will likely results in more severe acute and 

chronic affects than if the product consisted solely of ZnPt. A more refined risk assessment 

would consider the exposure and risk from the simultaneous exposure of aquatic organisms to 

both active ingredients found in the various paints.

Several studies in the open literature demonstrate synergistic effects when ZnPt occurs in the 

presence of copper. Mochida et al. (2006) determined the acute toxicity of zinc pyrithione and 

copper to red sea bream (Pagrus major) and toy shrimp (Heptacarpus futilirostris). Because the 

two compounds are often used together in antifoulant paints (copper is usually the main 

ingredient in the formulated product, with ZnPt added as a booster), they also tested mixtures of 

the two compounds. They found that the toxicity of ZnPt is enhanced when copper is present, 

with mixtures being more toxic than predicted by the toxicities of the individual compounds. For 

the shrimp, 96-h LC50s were 120 μg/L for ZnPt and 113 μg/L for copper when each was tested 

alone. The 96-h LC50 for mixtures was 4.6 μg/L ZnPt and 28.2 μg/L copper. Based on the 

individual LC50s, only about 16% mortality should occur for that mixture. For the bream, 96-h 

LC50s were 98.2 μg/L for ZnPt and 84.4 μg/L for copper when tested alone. When tested 

together, the average 96-h LC50 for mixtures was 24μg/L ZnPt and 64.3 μg/L copper. Based on 

the individual LC50s, theoretical mortality for the mixture was 44.2%. The authors concluded 

that "The enhancement of toxicity in thee mixture was inferred to be caused by conversion of 

ZnPT to the more toxic CuPT in the presence of Cu."

Bao et al. (2008) also found a strong synergistic effect when examining the toxicity of ZnPt 

alone and in combination with copper to three marine organisms. They suggest this may be due 

to tranchelation of ZnPt in the presence of copper. For the marine diatom, Thalassiosira 
23

pseudonana, the 96-h growth rate was about 47% that of the control when exposed to 2 μg/L 

ZnPt. When exposed to 2 μg/L ZnPt combined with 10 μg/L Cu, growth decreased to only 11% 

that of the control. A similar pattern was noted for polychaete larvae (Hydroides elegans) and an 

amphipod (Elasmopus rapax). They conclude that ecological risk assessments based solely on 

toxicity of ZnPt are probably inadequate when copper is available even at low concentrations. 

When examining the toxicity of mixtures of antifouling biocides on the brine shrimp (Artemia 

salina), Koutsaftis and Aoyama (2007) reported "strictly synergistic effects" of CuPt:ZnPt 

mixtures (4:1, 3:2, 1:1, 2:3). Because transchelation of ZnPt may result in the coexistence of 

ZnPt and CuPt in the marine environment, and synergistic effects from the mixtures, they 

emphasize the need for tests on mixtures and not simply on the single chemicals. 

Other Uncertainties: RASSB notes that the EECs in this assessment are based only on the inservice use of ZnPt leaching from watercraft hulls in the water. Emission to the environment 

also can occur at application of the antifoulant paint to the hull and at removal of paint from the 

hull (OECD 2005). The product label states that removed paint chips must be kept out of the 

water, it is likely that some will enter the aquatic environment in some situations. Such 

additional exposure may add to risk, but the extent of that exposure is uncertain at this time and 

is not addressed in the risk assessment.

Photodegradation: Pyrithione compounds, because they rapidly photodegrade into less toxic 

degradates, have been suggested to pose considerably less risk to aquatic organisms than do 

some other current or formerly registered antifoulants (e.g., TBT). While pyrithione 

photodegradation does occur rapidly in the presence of sunlight, photodegradation may be much 

less pronounced or minimal under conditions of low light attenuation, such as beneath 

watercraft, docks, and mooring structures or in the murky waters typical of many marinas. 

Bellas et al. (2005) examined the toxicity of ZnPt to sea urchin (Paracentrotus lividus) and 

mussel (Mytilus edulis). Toxic effects on larval growth of sea urchin were detected at 

concentrations as low as 0.16 μg ai/L. The authors calculated RQs based on predicted 

environmental concentrations reported by Madsen et al. (2000 as cited in Bellas et al. 2005) in a 

pleasure-craft harbor in Europe. When photodegradation was ignored, RQs = 15 for mussels and 

106 for urchins. However, even when photodegradation was considered, RQs = 4.9 for mussels 

and 35 for urchins. The authors conclude, based on their assertion that an RQ >1 presumes risk, 

that ZnPt predicted concentrations in marinas pose a threat to mussel and urchin early stages 

regardless of whether photodegradation is a factor or not.

Terrestrial Risk Characterization

Birds and mammals are presumed to have little exposure to ZnPt from its use as an antifoulant 

coating on boat hulls or from any indoor uses. Possible routes of exposure to antifoulant 

leachate include dermal uptake by swimming and wading birds in harbors and consumption of 

fish and invertebrates containing ZnPt residues. Based on the available data, RASSB assumes 

that ZnPt is not likely to bioconcentrate in aquatic organisms (bioconcentration factor <1). For 

this reason, and because ZnPt is not highly toxic to birds or mammals and predicted water 

concentrations are exceedingly low (parts per trillion), ingestion of prey items exposed to ZnPt is 
24

not likely to pose much risk to birds or wild mammals. Possible adverse affects from dermal 

exposure are unknown.

Endangered Species Considerations

Section 7 of the Endangered Species Act (ESA), 16 U.S.C. Section 1536(a)(2), requires that 

federal agencies consult with the National Marine Fisheries Service (NMFS) for marine and 

andronomus listed species, or with the United States Fish and Wildlife Services (FWS) for listed 

wildlife and freshwater organisms, if proposing an "action" that may affect listed species or their 

designated habitat. Each federal agency is required under the Act to insure that any action they 

authorize, fund, or carry out is not likely to jeopardize the continued existence of a listed species 

or result in the destruction or adverse modification of designated critical habitat. To jeopardize 

the continued existence of a listed species is to "to engage in an action that reasonably would be 

expected, directly or indirectly, to reduce appreciably the likelihood of both the survival and 

recovery of a listed species in the wild by reducing the reproduction, numbers, or distribution of 

the species." 50 C.F.R. §402.02.

To comply with subsection (a)(2) of the ESA, EPA’s Office of Pesticide Programs has 

established procedures to evaluate whether a proposed registration action may directly or 

indirectly appreciably reduce the likelihood of both the survival and recovery of a listed species 

in the wild by reducing the reproduction, numbers, or distribution of any listed species (U.S. 

EPA 2004). If any of the Listed Species LOC Criteria are exceeded for either direct or indirect 

effects in the Agency’s screening-level risk assessment, the Agency identifies any listed or 

candidate species that may occur spatially and temporally in the footprint of the proposed use. 

Further biological assessment is undertaken to refine the risk. The extent to which any species 

may be at risk determines the need to develop a more comprehensive consultation package as 

required by the ESA.

For currently registered uses of ZnPt other antifoulant paints, the Agency assumes there will be 

minimal environmental exposure, and only a minimal toxicity data set is required (Overview of 

the Ecological Risk Assessment Process in the Office of Pesticide Programs U.S. Environmental 

Protection Agency - Endangered and Threatened Species Effects Determinations, 1/23/04, 

Appendix A, Section IIB, p 81). Uses in these categories do not undergo a full screening-level 

risk assessment and are considered to fall under a no effect determination. 

The assessment for ZnPt antifoulant paint uses indicates that there is a potential for exposure of 

listed freshwater and saltwater organisms, and a more refined assessment is warranted for direct, 

indirect, and habitat effects. The refined assessment will involve clear delineation of the action 

area associated with proposed use of ZnPt and best available information on the temporal and 

spatial co-location of listed species with respect to the action area. This analysis has not been 

conducted for this assessment. An endangered species effect determination will not be made at 

this time. 
25

References

Bao, V.W.W, K.M.Y. Leung, K.W.H. Kwok, A.Q. Zhang, and G.C.S. Lui. 2008. Synergistic 

toxic effects of zinc pyrithione and copper to three marine species: implications on setting 

appropriate water quality criteria. Marine Pollution Bull. 57:616-623.

Bellas, J., Å. Granmo, and R. Beiras. 2005. Embryotoxicity of the antifouling biocide zinc 

pyrithione to sea urchin (Paracentrotus lividus) and mussel (Mytilus edulis). Marine Pollution 

Bull. 50:1382-1385.

Koutsaftis, A. and I. Aoyama. 2007. Toxicity of four antifouling biocides and their mixtures on 

the brine shrimp Artemia salina. Science Total Environ. 387:166-174.

Mochida, K., K. Ito, H. Harino, A. Kakuno, and K. Fujii. 2006. Acute toxicity of pyrithione 

antifouling biocides and joint toxicity with copper to red sea bream (Pagrus major) and toy 

shrimp (Heptacarpus futilirostris). Environ. Toxicol. Chem. 25:3058-3064.

OECD. 2005. Emission Scenario Document on Antifouling Products. OECD Series on 

Emission Scenario Documents Number 13. ENV/JM/MONO(2005)8. Organisation for 

Economic Co-operation and Development. 166 pp.

Onduka, T., K. Mochida, K. Ito, A. Kakuno, and K. Fujii. 2007. Acute toxicity of pyrithione 

photodegradation products to some marine organisms. Shipbuilding Technol. ISST, pp. 99-106.
26

Appendix A: Data Requirements and Available Guideline Ecotoxicity Data for Zinc 

Pyrithione

The toxicity endpoints used in OPP's hazards and risk assessments are obtained from guideline 

toxicity studies conducted for wildlife, aquatic organisms, and plants (40 CFR §158). Guideline 

studies are required to provide acute and reproductive/chronic measures of effect for one or more 

test species in several taxonomic groups. Some studies are only required on a case-by-case 

basis, depending on factors such as use patterns, environmental fate characteristics, or toxicity to 

organisms in other taxa. The available toxicity endpoints and data requirements for ZnPt are 

presented below. Toxicity data for two degradates (pyrithione sulfonic acid and pyridine 

sulfonic acid) also are available for some aquatic species.

Toxicity to Terrestrial Animals

Birds, Acute and Dietary

The Agency requires one acute-oral study to establish the toxicity of ZnPt (technical grade active 

ingredient, TGAI) to birds. The preferred test species is either the mallard (Anas platyrhynchos) 

or the northern bobwhite (Colinus virginianus). Avian dietary toxicity studies (northern 

bobwhite and mallard) are conditionally required for antimicrobial pesticides used as antifoulant 

paints and coatings. The available acute-oral and dietary studies indicate that ZnPt is moderately 

to practically nontoxic to birds (Table 1A). The guidelines for avian acute-oral toxicity (OPPTS 

850.2100) and avian dietary toxicity (OPPTS 850.2200) are satisfied. 

Table 1A. Acute-oral (LD50) and Dietary (LC50) Toxicity of Zinc Pyrithione to Birds

Test

Species

Test material

(% ai)

Toxicity Endpoint

(95% CI)

Toxicity

Category

Study

Status

MRID

No.

Northern 

bobwhite

ZnPt (96) LD50 = 60 mg ai/kg bw

(44-81)

moderately

toxic core 438646-11

LC50 = 1063 ppm ai

(789-1412)

slightly

toxic core 438646-10

Mallard

ZnPt (96) LC50 >5000 ppm ai practically 

nontoxic core 438646-12

Mammals, Acute 

The available mammalian acute toxicity data indicate that ZnPt is slightly to moderately toxic to 

small mammals on an acute-oral basis (lab. rat LD50s = 630 mg ai/kg bw, males, and 460 mg 

ai/kg bw, females). The human toxicology chapter for zinc pyrithione contains more information 

on a variety of mammalian toxicity studies submitted in support of the human-health assessment.
27

Toxicity to Aquatic Organisms

Freshwater Fish, Acute

Studies are required with the TGAI to establish the acute toxicity of ZnPt to freshwater fish. The 

preferred test species are the rainbow trout (Oncorhynchus mykiss), a coldwater fish, and the 

bluegill (Lepomis macrochirus), a sunfish. The guideline for freshwater-fish acute toxicity 

(OPPTS 850.1075) is satisfied.

Table 2A. Acute Toxicity of ZnPt to Freshwater Fish Exposed in the Water Column

Test

Species

Test material

(% ai)

96-h LC50

(μg ai/L)

(95% CI)

Toxicity

Category

Study

Status

MRID

No.

Rainbow trout ZnPt (97.8)

3.6

(3.0-4.3)

very highly

toxic core 438646-13

Fathead minnow ZnPt (97.8)

2.6

(2.1-3.2)

very highly

toxic core 438646-06

Freshwater Invertebrates, Acute

A study with the TGAI is required to establish the acute toxicity of ZnPt to freshwater 

invertebrates. The preferred test species is the water flea, Daphnia magna. The data categorize 

ZnPt as being very highly toxic to freshwater invertebrates (Table 3A). The guideline 

requirement (OPPTS 850.1010) is satisfied. 

Table 3A. Acute Toxicity of ZnPt to Freshwater Invertebrates Exposed in the Water 

Column

Test

Species

Test material

(% ai)

48-h EC50

(μg ai/L)

(95% CI)

Toxicity 

Category

Study 

Status

MRID 

No.

Waterflea ZnPt (97.8)

8.2

(5.2-25.8) very highly toxic core 438646-04

Estuarine/Marine Fish and Invertebrates, Acute

Acute toxicity data for the TGAI with estuarine/marine fish and two invertebrate species are 

required for antifoulant coatings and paints, because of their direct release via leaching into the 

estuarine/marine environment. The preferred fish test species is sheepshead minnow 

(Cyprinodon variegatus) and preferred invertebrate species are the mysid shrimp (Mysidopsis 
28

bahia) and Eastern oyster (Crassostrea virginica). The available data categorize ZnPt as being 

highly toxic to saltwater fish and very highly toxic to saltwater invertebrates (Table 4A). The 

guideline requirements for estuarine/marine fish and invertebrate acute toxicity testing (OPPTS 

850.1075, 850.1025, and 850.1035) are satisfied. 

Table 4A. Acute Toxicity of ZnPt to Estuarine/Marine Fish and Invertebrates Exposed in 

the Water Column 

Test

Species

Test material

(% ai)

96-h LC50

(μg ai/L)

(95% CI)

Toxicity 

Category

Study 

Status

MRID 

No.

Sheepshead

minnow ZnPt (97.8)

400

(200-590) highly toxic core 438646-05

Mysid shrimp ZnPt (97.8)

4.7

(4.0-5.5)

very highly

toxic core 438646-07

Eastern oyster ZnPt (97.8)22.0

(18.9-27.3)

very highly

toxic core 438646-08

Degradates, Acute Toxicity to Fish and Aquatic Invertebrates

Some acute toxicity data are available for two ZnPt degradates (pyridine sulfonic acid and 

pyrithione sulfonic acid). The data are sufficient to categorize both degradates as being only 

slightly toxic to practically nontoxic to freshwater and saltwater fish and invertebrates (Table 

5A).

Table 5A. Acute Toxicity of Two ZnPt Degradates to Fish and Aquatic Invertebrates 

Exposed in the Water Column

Test

Species

Test material

(% ai)

LC50 or EC50

(μg ai/L)

(95% CI)

Toxicity

Category

Study

Status

MRID

No.

Rainbow

trout

pyridine sulfonic acid

(98)

57,100

(48,300-69,800) slightly toxic core 438646-27

pyrithione sulfonic acid 

(98.5)

92,300

(73,600-124,000) slightly toxic core 438646-16

pyridine sulfonic acid

(98)

68,500

(55,200-85,000) slightly toxic core 438646-21
29

pyrithione sulfonic acid 

(98.5)

58,800

(48,700-71,000) slightly toxic core 438646-18

Waterflea

pyridine sulfonic acid

(98) >122,000 practically nontoxic core 438646-22

pyrithione sulfonic acid 

(98.5) >127,000 practically nontoxic core 438646-19

Sheepshead 

minnow

pyridine sulfonic acid

(98) >127,000 practically nontoxic core 438646-23

pyrithione sulfonic acid 

(98.5) >137,000 practically nontoxic core 438646-17

Mysid 

shrimp

pyridine sulfonic acid

(98)

71,000

(62,800-81,100) slightly toxic core 438646-26

pyrithione sulfonic acid 

(98.5)

70,300

(61,600-81,600) slightly toxic core 438646-20

Eastern 

oyster

pyridine sulfonic acid

(98)

85.600

(73,300-102,500) slightly toxic core 438646-24

pyrithione sulfonic acid 

(98.5)

96,200

(89,313-104,560) slightly toxic core 438646-15

Aquatic Organisms, Chronic

Chronic testing of fish and aquatic invertebrates is required for ZnPt, because it is discharged via 

leaching directly into the aquatic environment. The preferred test species are the fish and 

invertebrate species most sensitive in the acute studies. The available data for ZnPt report 

adverse affects on survival, growth, and reproduction occur at concentrations from about 2 to 9 

μg ai/L (Table 6A). No adverse affects of the degradate were reported at concentrations of 10 μg 

ai/L or lower. The guideline requirements (OPPTS 850.1400, 850.1300/1350) are satisfied.

Table 6A. Chronic Toxicity of ZnPt and a Degradate to Freshwater Fish and Invertebrates 

Exposed in the Water Column

Test

Species

Test material

(% ai)

NOEC/LOEC

(μg ai/L)

Endpoints

affected

Study

Status MRID No.

Fathead 

minnow

ZnPt

(98.2)

1.2 / 2.8

hatching, 

growth,

sublethal effects

core 452041-02
30

pyridine-2-

sulfonic acid

(98.2)

NOEC = 10 none (highest 

concentration tested) core 452041-02

Waterflea ZnPt

(98.2)

2.7 / 5.8 reproduction, growth core 445354-01

Mysid 

shrimp

ZnPt

(98.2)

2.2 / 4.2

4.2 / 9.1

growth

reproduction core 449111-01

Aquatic Plants

Aquatic plant growth testing (TGAI or TEP) is required for ZnPt because of its discharge via 

leaching into the aquatic environment. Test species include duckweed (Lemna gibba), a vascular 

plant, and four non-vascular species: (1) freshwater green alga, Selenastrum capricornutum, (2) 

marine diatom, Skeletonema costatum, (3) freshwater diatom, Navicula pelliculosa, and (4) 

bluegreen cyanobacteria, Anabaena flos-aquae. The available aquatic plant data indicate that the 

marine diatom is the most sensitive species (Table 7A). The guideline requirement for aquatic 

plant growth testing (OPPTS 850.5400) is satisfied.

Table 7A. Toxicity of ZnPt to Aquatic Plants 

Test

Species

Test material

(% ai)

EC50

(μg ai/L)

NOEC

(μg ai/L)

Study

Status

MRID

No.

Duckweed ZnPt (97.8) 8.8 4.0 core 452041-04

Freshwater 

green alga ZnPt (97.8) 28.0 7.8 core 438646-09

Blue-green 

alga ZnPt (98.3) 7.1 3.8 core 455649-01

Marine diatom ZnPt (98.2) 0.65 0.46 core 462503-05

Freshwater 

diatom 

ZnPt (98.3) 2.6 2.4 core 455650-01

Freshwater green alga also were tested with two degradates. Both degradates are considerably 

less toxic to green alga than is ZnPt (Table 8A). However, there are data in the literature 

indicating that two photodegradates (2-mercaptopyridine-N-oxide and 2.2'-dithio-bis-pyridin-Noxide) are about as toxic to the marine diatom (S. costatum) as is ZnPt (Onduka et al. 2007). In 

that study, the 72-h EC50 was 1.6 μg ai/L for ZnPt and 1.1 μg ai/L for 2-mercaptopyridine-Noxide and 3.4 μg ai/L for 2.2'-dithio-bis-pyridin-N-oxide.
31

Table 8A. Toxicity of Two Pyrithione Degradates to Aquatic Plants 

Test

Species

Test material

(% ai)

EC50

(μg ai/L)

NOEC

(μg ai/L)

Study

Status

MRID

No.

Freshwater 

green alga

pyridine sulfonic acid

(98) 28,900 5460 core 438646-25

pyrithione sulfonic acid 

(98.5) 28,200 11,800 core 438646-14

Terrestrial (Semi-aquatic) Plants

A seedling-emerge test with rice (Oryza sativa) is required for all pesticides having antifoulant 

paint and coating uses. The study available for ZnPt determined an EC25 of 172 mg ai/kg (Table 

9A). The guideline requirement (OPPTS 850.4225) is satisfied.

Table 9A. Toxicity of ZnPt to Semi-aquatic Terrestrial Plants 

Test

Species Test Test material

(% ai)

EC25

(mg ai/kg)

NOEC

(mg ai/kg)

Study

Status

MRID

No.

Rice seedling 

emergence

ZnPt

(98.3)

172 100 core 462503-01

Sediment Toxicity

Acute, whole-sediment tests with freshwater and saltwater invertebrates are required for 

antifoulant paints and coatings. Two studies were conducted with ZnPt (Table 10A). However, 

the study testing a marine amphipod did not establish an EC50 and thus is not adequate to 

calculate an RQ. The guideline requirement for a freshwater test (OPPTS 850.1735) is satisfied. 

However, because an EC50 or LC50 was not determined for the marine amphipod, the guideline 

requirement (OPPTS 850.1740) is not satisfied for a whole-sediment acute toxicity test with a 

saltwater invertebrate.
32

Table 10A. Acute Sediment Toxicity of ZnPt to Freshwater and Estuarine/Marine 

Invertebrates

Test

Species % ai 10-d EC50/LC50

(mg/kg dry sediment)

Study Status MRID No.

Freshwater 

amphipod 

(Hyalella azteca)

ZnPt (98.2) 2.1 core 462503-03

Marine amphipod

(Leptocheirus 

plumulosus)

ZnPt (98.2) <1.08 supplemental 462503-04
33

Appendix B: Zinc Pyrithione MAM-PEC Runs for U. S. Inland and Coastal Marinas and 

Harbors and Surrounding Waters

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON, D.C. 20460

3/18/2009

MEMORANDUM

SUBJECT: Estimated Environmental Concentrations (EECs) for Antifoulant use of Zinc 

Pyrithion

From: Siroos Mostaghimi, Ph.D., Senior Scientist

Risk Assessment and Science Support Branch (RASSB)

Antimicrobials Division (7510P)

To: Norm Cook, Chief

Risk Assessment and Science Support Branch (RASSB)

Antimicrobials Division (7510P)

Chemical Name: Zinc-2-pyridinethiol-1-oxide

Chemical No.: 088002

DP No.:362201

Attached please find the Estimated Environmental Concentrations (EECs) for antifoulant use 

of Zinc Pyrithion. The MAM-PEC (Version 2) model was used to estimate the concentrations of 

Zinc Pyrithion in water and sediments from application of antifoulant paints applied on ships and 

other water recreational vehicles. 
34

Background:

The Arch Chemicals, Inc. has submitted an application for registration for a 

manufacturing use product containing Zinc Omadine (Zinc pyrithion), for use in formulating 

antifoulant paints. This report provides Estimated Environmental Concentrations (EECs) for the 

Zinc pyrithion antifoulant use. 

MAM-PEC is used as an assessment tool for antifoulant risk assessments in Europe. 

MAM-PEC was developed by the Institute of Environmental Studies/IVM and Delft Hydraulics 

for the European Paint Makers Association (CEPE) for conducting risk assessments for 

antifouling agents. The model provides prediction of environmental concentrations of 

antifouling products in six generalized “typical” marine environments (commercial harbor, 

estuarine harbor, marina, marina poorly flushed, open sea, and shipping lane). The version 2 of 

MAMPEC was used for this report.

EECs are generated using MAMPEC for the two leaching rates (4.5 μg/cm2/day, and 14.3 

μg/cm2/day. These leaching rates were chosen from several leaching rate studies available for 

Zn-Pyrithion. They represent a low and high in the spectrum reported as maximum leaching 

rates for Zn-Pyrithion. 

Several MAMPEC scenarios were chosen for these runs which are briefly described 

below. 

The estimated environmental concentrations (EECs) could be used for ecological and 

dietary (if necessary) risk assessment based on the availability of toxicity data. 

Summary of the Results:

Scenario 1- Inland Marina

Input

Environment : Default marina 1-Fresh water-InLand

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine-Fresh Water LR 4.5 and 14.3 μg /cm2/day

Load : 3.03E+02:g/d and 9.62E+02:g/d, respectively.

A summary of the results for MAMPEC model runs for Inland Marina for two leaching 

rates (4.5 μg /cm2/day and 14.3 μg /cm2/day ) are presented in Table 1 and 2. Total and 

dissolved concentrations in water as well as concentrations of Zinc Pyrithion in sediments after 

one year are shown. The detailed input and output of the MAMPEC model run are shown in 

Appendix A.
35

Table 1. Estimated Environmental Concentrations of Zn-Pyrithion in an inland marina--The 

leaching rate is 4.5 μg /cm2/day

Total concentration 

(μg /l) Dissolved (μg /l Suspended matter (μg /g dw)

Sediment 

after one year 

(μg /g) dw

Maximum 

concentration 2.01E-01 2.00E-01 1.44E-02 6.03E-08

95% confidence 1.94E-01 1.93E-01 1.38E-02 5.81E-08

Average 

concentration 1.32E-01 1.32E-01 9.47E-03 3.97E-08

Median 

concentration 1.31E-01 1.31E-01 9.40E-03 3.94E-08

Minimum 

concentration 2.79E-02 2.78E-02 2.00E-03 8.38E-09

Table 2. Estimated Environmental Concentrations of Zn-Pyrithion in an inland Marina The 

leaching rate is 14.3 μg /cm2/day

Total concentration 

(μg /l) Dissolved (μg /l Suspended matter (μg /g dw)

Sediment 

after one year 

(μg /g) dw

Maximum 

concentration 6.39E-01 6.37E-01 4.57E-02 1.92E-07

95% confidence 6.15E-01 6.13E-01 4.40E-02 1.85E-07

Average 

concentration 4.21E-01 4.19E-01 3.01E-02 1.26E-07

Median 

concentration 4.17E-01 4.16E-01 2.99E-02 1.25E-07

Minimum 

concentration 8.88E-02 8.85E-02 6.35E-03 2.66E-08
36

Scenario 2- Inland Small Marina

Input

Environment : Default marina-Swiss marina 1

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine-Fresh Water 4.5 and 14.3 μg /cm2/day 

leaching rates

Load : 3.03E+02:g/d and 9.62E+02:g/d, respectively.

A summary of the results for this MAMPEC model runs are presented in Table 3 and 4. 

Total and dissolved concentrations in water as well as concentrations of Zinc Pyrithion in 

sediment after one year are shown. The detailed input and output of the MAMPEC model run 

are shown in Appendix B.

Table 3 . Estimated Environmental Concentrations of Zn-Pyrithion in a Small Inland Marina-The 

leaching rate is 4.5 μg /cm2/day

Total concentration 

(μg /l) Dissolved (μg /l) Suspended matter (μg /g dw)

Sediment 

after one year 

(μg /g) dw

Maximum 

concentration 3.41E+00 3.40E+00 2.44E-01 1.02E-06

95% confidence 3.41E+00 3.40E+00 2.44E-01 1.02E-06

Average 

concentration 2.15E+00 2.14E+00 1.54E-01 6.45E-07

Median 

concentration 2.00E+00 1.99E+00 1.43E-01 6.01E-07

Minimum 

concentration 6.96E-01 6.94E-01 4.98E-02 2.09E-07

Table 4. Estimated Environmental Concentrations of Zn-Pyrithion in a Small Inland Marina- The 

leaching rate is 14.3 μg /cm2/day

Total concentration 

(μg /l) Dissolved (μg /l

Suspended matter 

(μg /g dw)

Sediment 

after one year 

(μg /g) dw

Maximum 

concentration 1.08E+01 1.08E+01 7.74E-01 3.25E-06

95% confidence 1.08E+01 1.08E+01 7.74E-01 3.25E-06

Average 

concentration 6.83E+00 6.81E+00 4.89E-01 2.05E-06

Median 

concentration 6.36E+00 6.34E+00 4.55E-01 1.91E-06

Minimum 

concentration 2.21E+00 2.21E+00 1.58E-01 6.64E-07
37

Scenario 3- Coastal Marina

Environment : Default marina for salt water

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine1 for 4.5 and 14.3 μg /cm2/day

Load : 3.03E+02:g/d and 9.62E+02:g/d, respectively.

A summary of the results for this MAMPEC model runs are presented in Table 5 and 6. 

Total and dissolved concentrations in water as well as concentrations of Zinc Pyrithion in 

sediment after one year are shown. The detailed input and output of the MAMPEC model run 

are shown in Appendix C.

Table. 5. Estimated Environmental Concentrations of Zn-Pyrithion in a Coastal Marina. The 

Leaching rate used is 4.5 μg /cm2/day.

Total concentration 

(μg /l) Dissolved (μg /L) Suspended matter (μg /g dw)

Sediment 

after one year 

(μg /g) dw

Maximum 

concentration 2.01E-01 2.00E-01 1.44E-02 3.02E-07

95% confidence 1.94E-01 1.93E-01 1.38E-02 2.90E-07

Average 

concentration 1.32E-01 1.32E-01 9.47E-03 1.99E-07

Median 

concentration 1.31E-01 1.31E-01 9.40E-03 1.97E-07

Minimum 

concentration 2.79E-02 2.78E-02 2.00E-03 4.19E-08

Table 6. Estimated Environmental Concentrations of Zn-Pyrithion in a Coastal Marina. The 

leaching rate used is 14.3 μg /cm2/day

Total concentration 

(μg /l) Dissolved (μg /L) Suspended matter (μg /g dw)

Sediment 

after one year 

(μg /g) dw

Maximum 

concentration 6.39E-01 6.37E-01 4.57E-02 9.58E-07

95% confidence 6.15E-01 6.13E-01 4.40E-02 9.23E-07

Average 

concentration 4.21E-01 4.19E-01 3.01E-02 6.31E-07

Median 

concentration 4.17E-01 4.16E-01 2.99E-02 6.26E-07

Minimum 

concentration 8.88E-02 8.85E-02 6.35E-03 1.33E-07

Scenario 4 - Costal Harbor
38

Environment : Default estuarine harbour 1

Compound : Zinc Omadine (EPA)

Emission : Default Estuarine Harbour-5, 4.5 and 14.3 μg /cm2/day leaching rates

Load : 4.35E+03:g/d and 1.38E+04:g/d, respectively.

A summary of the results for this MAMPEC model runs are presented in Table 7 and 8. 

Total and dissolved concentrations in water as well as concentrations of Zinc Pyrithion in 

sediment after one year are shown. The detailed input and output of the MAMPEC model run 

are shown in Appendix D.

Table. 7. Estimated Environmental Concentrations of Zn-Pyrithion in a Costal Harbor. The 

Leaching rate used was 4.5 μg /cm2/day.

Total concentration 

(μg /l) Dissolved (μg /L) Suspended matter (μg /g dw)

Sediment 

after one year 

(μg /g) dw

Maximum 

concentration 4.93E-02 4.92E-02 3.53E-03 7.40E-08

95% confidence 4.54E-02 4.52E-02 3.24E-03 6.81E-08

Average 

concentration 2.41E-02 2.40E-02 1.72E-03 3.62E-08

Median 

concentration 1.83E-02 1.82E-02 1.31E-03 2.74E-08

Minimum 

concentration 3.48E-03 3.47E-03 2.49E-04 5.22E-09

Table 8. Estimated Environmental Concentrations of Zn-Pyrithion in a Costal Harbor. The 

leaching rate used was 14.3 μg /cm2/day

Total concentration 

(μg /l) Dissolved (μg /L) Suspended matter (μg /g dw)

Sediment 

after one year 

(μg /g) dw

Maximum 

concentration 1.57E-01 1.56E-01 1.12E-02 2.35E-07

95% confidence 1.44E-01 1.44E-01 1.03E-02 2.16E-07

Average 

concentration 7.66E-02 7.63E-02 5.48E-03 1.15E-07

Median 

concentration 5.80E-02 5.79E-02 4.15E-03 8.71E-08

Minimum 

concentration 1.11E-02 1.10E-02 7.91E-04 1.66E-08
39

These EECs estimated from the above scenarios could be used for ecological risk 

assessment of both fresh and salt water. 

References:

Baart, T, Boon, J, and B. Van Hattum. 2008. User Manual-Quick Guide. MAM-PEC Version 

2. European Commission, CEPEWL, IRM.

USEPA. 2007. Environmental Fate Science Chapter on Zinc Pyrithione (Zinc Omadine®) and 

Proposed Bridging to Copper Pyrithione. Memo from James Breithaupt to Marshall Swindle. 

October 14, 2008

File: C:\Myfiles\2009 Reports\Zinc-Pyrithion/ Estimated Environmental Concentrations (EECs) 

for Zinc Pyrithion

CC: RASSB Chemical File

 Siroos Mostaghimi /RASSB
40

 

 Appendix A

Inputs, parameters and out put results from the MAMPEC Model run for Scenario 1 
41

MAMPEC - Result Sheet

Run : Default marina 1-Fresh water-InLand Zinc Inland Marina Fresh water LR 4.5

Version : MamPec 2.0

Run date : 3/16/2009 10:37:22 AM

Memo : 

Input

Environment : Default marina 1-Fresh water-InLand

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine-Fresh Water LR 4.5

Load : 3.03E+02:g/d

Results

Total concentration in water

Maximum concentration : 2.01E-01 :ug/l

95 % concentration : 1.94E-01 :ug/l

Average concentration : 1.32E-01 :ug/l

Median concentration : 1.31E-01 :ug/l

Minimum concentration : 2.79E-02 :ug/l

Dissolved concentration in water

Maximum concentration : 2.00E-01 :ug/l

95 % concentration : 1.93E-01 :ug/l

Average concentration : 1.32E-01 :ug/l

Median concentration : 1.31E-01 :ug/l

Minimum concentration : 2.78E-02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 1.44E-02 :ug/g dw

95 % concentration : 1.38E-02 :ug/g dw

Average concentration : 9.47E-03 :ug/g dw

Median concentration : 9.40E-03 :ug/g dw

Minimum concentration : 2.00E-03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 6.03E-08 :ug/g dw

95 % concentration : 5.81E-08 :ug/g dw

Average concentration : 3.97E-08 :ug/g dw

Median concentration : 3.94E-08 :ug/g dw

Minimum concentration : 8.38E-09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 6.03E-08 :ug/g dw

95 % concentration : 5.81E-08 :ug/g dw

Average concentration : 3.97E-08 :ug/g dw

Median concentration : 3.94E-08 :ug/g dw

Minimum concentration : 8.38E-09 :ug/g dw
42

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 6.03E-08 :ug/g dw

95 % concentration : 5.81E-08 :ug/g dw

Average concentration : 3.97E-08 :ug/g dw

Median concentration : 3.94E-08 :ug/g dw

Minimum concentration : 8.38E-09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 6.03E-08 :ug/g dw

95 % concentration : 5.81E-08 :ug/g dw

Average concentration : 3.97E-08 :ug/g dw

Median concentration : 3.94E-08 :ug/g dw

Minimum concentration : 8.38E-09 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 1.20E-02 :ug/l

95 % concentration : 1.04E-02 :ug/l

Average concentration : 6.46E-04 :ug/l

Median concentration : 5.36E-03 :ug/l

Minimum concentration : 4.56E-03 :ug/l

Dissolved concentration in water

Maximum concentration : 1.17E-02 :ug/l

95 % concentration : 1.03E-02 :ug/l

Average concentration : 6.44E-04 :ug/l

Median concentration : 5.34E-03 :ug/l

Minimum concentration : 4.54E-03 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 8.43E-04 :ug/g dw

95 % concentration : 7.42E-04 :ug/g dw

Average concentration : 4.62E-05 :ug/g dw

Median concentration : 3.84E-04 :ug/g dw

Minimum concentration : 3.26E-04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 3.54E-09 :ug/g dw

95 % concentration : 3.11E-09 :ug/g dw

Average concentration : 1.94E-10 :ug/g dw

Median concentration : 1.61E-09 :ug/g dw

Minimum concentration : 1.37E-09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 3.54E-09 :ug/g dw

95 % concentration : 3.11E-09 :ug/g dw

Average concentration : 1.94E-10 :ug/g dw

Median concentration : 1.61E-09 :ug/g dw
43

Minimum concentration : 1.37E-09 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 3.54E-09 :ug/g dw

95 % concentration : 3.11E-09 :ug/g dw

Average concentration : 1.94E-10 :ug/g dw

Median concentration : 1.61E-09 :ug/g dw

Minimum concentration : 1.37E-09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 3.54E-09 :ug/g dw

95 % concentration : 3.11E-09 :ug/g dw

Average concentration : 1.94E-10 :ug/g dw

Median concentration : 1.61E-09 :ug/g dw

Minimum concentration : 1.37E-09 :ug/g dw

MAMPEC - Input data sheet

Compound

Name : Zinc-pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E-06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol-water coefficient : 9.00E-01 :(-) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(-) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E-05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(-)

in water

Biological degradation rate : 1.76E-01 :1/d

Hydrolytic degradation rate : 3.82E-02 :1/d

Photolytic degradation rate : 9.20E-01 :1/d

in sediment

Biological degradation rate : 6.30E-01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference : 

Environment

Description : Default marina 1-Fresh water-InLand

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 5.00E+00 :s.e.

Depth well-mixed sediment top layer : 1.00E-01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E-02 :-/-
44

Nett sedimentation velocity : 1.00E-01 :m/d

pH : 6.5 :(-)

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :-/-

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 400 :m

Width of harbor (y1) : 400 :m

Length of harbor (x2) : 400 :m

Width of river (y2) : 400 :m

Depth of harbor : 3.5 :m

Length of open harbour mouth (x3) : 100 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 350 :m2

Depth at harbour mouth : 3.5 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 243420:m3

Reference : 

 

Emission

Description : Default Marina 100% Zn-Omadine-Fresh Water LR 4.5

Load : 302.7375 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 302.7375 :g/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10): 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0
45

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10): 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0-10 :m

Ship Length (Class 2) : 10-50 :m

Ship Length (Class 3) : 50-100 :m

Ship Length (Class 4) : 100-150 :m

Ship Length (Class 5) : 150-200 :m

Ship Length (Class 6) : 200-250 :m

Ship Length (Class 7) : 250-300 :m

Ship Length (Class 8) : 300-350 :m

Ship Length (Class 9) : 350-400 :m

Ship Length (Class 10) : > 400 :m

Reference : all assumptions are like the inland marina scenario except LR=4.5
46

MAMPEC - Result Sheet

Run : Inland Marina-Fresh water-LR 14.3

Version : MamPec 2.0

Run date : 3/16/2009 10:29:48 AM

Memo : 

Input

Environment : Default marina 1-Fresh water-InLand

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine-Fresh Water 14.3

Load : 9.62E+02:g/d

Results

Total concentration in water

Maximum concentration : 6.39E-01 :ug/l

95 % concentration : 6.15E-01 :ug/l

Average concentration : 4.21E-01 :ug/l

Median concentration : 4.17E-01 :ug/l

Minimum concentration : 8.88E-02 :ug/l

Dissolved concentration in water

Maximum concentration : 6.37E-01 :ug/l

95 % concentration : 6.13E-01 :ug/l

Average concentration : 4.19E-01 :ug/l

Median concentration : 4.16E-01 :ug/l

Minimum concentration : 8.85E-02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 4.57E-02 :ug/g dw

95 % concentration : 4.40E-02 :ug/g dw

Average concentration : 3.01E-02 :ug/g dw

Median concentration : 2.99E-02 :ug/g dw

Minimum concentration : 6.35E-03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.92E-07 :ug/g dw

95 % concentration : 1.85E-07 :ug/g dw

Average concentration : 1.26E-07 :ug/g dw

Median concentration : 1.25E-07 :ug/g dw

Minimum concentration : 2.66E-08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.92E-07 :ug/g dw

95 % concentration : 1.85E-07 :ug/g dw

Average concentration : 1.26E-07 :ug/g dw

Median concentration : 1.25E-07 :ug/g dw

Minimum concentration : 2.66E-08 :ug/g dw

Contaminant concentration in sediment after 5 years of use
47

Maximum concentration : 1.92E-07 :ug/g dw

95 % concentration : 1.85E-07 :ug/g dw

Average concentration : 1.26E-07 :ug/g dw

Median concentration : 1.25E-07 :ug/g dw

Minimum concentration : 2.66E-08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.92E-07 :ug/g dw

95 % concentration : 1.85E-07 :ug/g dw

Average concentration : 1.26E-07 :ug/g dw

Median concentration : 1.25E-07 :ug/g dw

Minimum concentration : 2.66E-08 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 3.70E-02 :ug/l

95 % concentration : 3.29E-02 :ug/l

Average concentration : 2.05E-03 :ug/l

Median concentration : 1.70E-02 :ug/l

Minimum concentration : 1.45E-02 :ug/l

Dissolved concentration in water

Maximum concentration : 3.73E-02 :ug/l

95 % concentration : 3.28E-02 :ug/l

Average concentration : 2.05E-03 :ug/l

Median concentration : 1.70E-02 :ug/l

Minimum concentration : 1.44E-02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 2.68E-03 :ug/g dw

95 % concentration : 2.36E-03 :ug/g dw

Average concentration : 1.47E-04 :ug/g dw

Median concentration : 1.22E-03 :ug/g dw

Minimum concentration : 1.04E-03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.12E-08 :ug/g dw

95 % concentration : 9.89E-09 :ug/g dw

Average concentration : 6.16E-10 :ug/g dw

Median concentration : 5.11E-09 :ug/g dw

Minimum concentration : 4.35E-09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.12E-08 :ug/g dw

95 % concentration : 9.89E-09 :ug/g dw

Average concentration : 6.16E-10 :ug/g dw

Median concentration : 5.11E-09 :ug/g dw

Minimum concentration : 4.35E-09 :ug/g dw
48

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 1.12E-08 :ug/g dw

95 % concentration : 9.89E-09 :ug/g dw

Average concentration : 6.16E-10 :ug/g dw

Median concentration : 5.11E-09 :ug/g dw

Minimum concentration : 4.35E-09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.12E-08 :ug/g dw

95 % concentration : 9.89E-09 :ug/g dw

Average concentration : 6.16E-10 :ug/g dw

Median concentration : 5.11E-09 :ug/g dw

Minimum concentration : 4.35E-09 :ug/g dw

MAMPEC - Input data sheet

Compound

Name : Zinc-pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E-06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol-water coefficient : 9.00E-01 :(-) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(-) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E-05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(-)

in water

Biological degradation rate : 1.76E-01 :1/d

Hydrolytic degradation rate : 3.82E-02 :1/d

Photolytic degradation rate : 9.20E-01 :1/d

in sediment

Biological degradation rate : 6.30E-01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference : 

Environment

Description : Default marina 1-Fresh water-InLand

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 5.00E+00 :s.e.

Depth well-mixed sediment top layer : 1.00E-01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E-02 :-/-

Nett sedimentation velocity : 1.00E-01 :m/d
49

pH : 6.5 :(-)

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :-/-

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 400 :m

Width of harbor (y1) : 400 :m

Length of harbor (x2) : 400 :m

Width of river (y2) : 400 :m

Depth of harbor : 3.5 :m

Length of open harbour mouth (x3) : 100 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 350 :m2

Depth at harbour mouth : 3.5 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 243420:m3

Reference : 

 

Emission

Description : Default Marina 100% Zn-Omadine-Fresh Water 14.3

Load : 962.0325 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 962.0325 :g/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10): 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0
50

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10): 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0-10 :m

Ship Length (Class 2) : 10-50 :m

Ship Length (Class 3) : 50-100 :m

Ship Length (Class 4) : 100-150 :m

Ship Length (Class 5) : 150-200 :m

Ship Length (Class 6) : 200-250 :m

Ship Length (Class 7) : 250-300 :m

Ship Length (Class 8) : 300-350 :m

Ship Length (Class 9) : 350-400 :m

Ship Length (Class 10) : > 400 :m

Reference : all assumptions are like the inland marina scenario except LR=14.3
51

Appendix B

Inputs, parameters and out put results from the MAMPEC Model run for Scenario 2 

MAMPEC - Result Sheet
52

Run : Scenario2-Inland Small Marina-LR 4.5

Version : MamPec 2.0

Run date : 3/16/2009 11:25:48 AM

Memo : 

Input

Environment : Default marina-Swiss marina 1

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine-Fresh Water 4.5

Load : 3.03E+02:g/d

Results

Total concentration in water

Maximum concentration : 3.41E+00 :ug/l

95 % concentration : 3.41E+00 :ug/l

Average concentration : 2.15E+00 :ug/l

Median concentration : 2.00E+00 :ug/l

Minimum concentration : 6.96E-01 :ug/l

Dissolved concentration in water

Maximum concentration : 3.40E+00 :ug/l

95 % concentration : 3.40E+00 :ug/l

Average concentration : 2.14E+00 :ug/l

Median concentration : 1.99E+00 :ug/l

Minimum concentration : 6.94E-01 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 2.44E-01 :ug/g dw

95 % concentration : 2.44E-01 :ug/g dw

Average concentration : 1.54E-01 :ug/g dw

Median concentration : 1.43E-01 :ug/g dw

Minimum concentration : 4.98E-02 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.02E-06 :ug/g dw

95 % concentration : 1.02E-06 :ug/g dw

Average concentration : 6.45E-07 :ug/g dw

Median concentration : 6.01E-07 :ug/g dw

Minimum concentration : 2.09E-07 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.02E-06 :ug/g dw

95 % concentration : 1.02E-06 :ug/g dw

Average concentration : 6.45E-07 :ug/g dw

Median concentration : 6.01E-07 :ug/g dw

Minimum concentration : 2.09E-07 :ug/g dw

Contaminant concentration in sediment after 5 years of use
53

Maximum concentration : 1.02E-06 :ug/g dw

95 % concentration : 1.02E-06 :ug/g dw

Average concentration : 6.45E-07 :ug/g dw

Median concentration : 6.01E-07 :ug/g dw

Minimum concentration : 2.09E-07 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.02E-06 :ug/g dw

95 % concentration : 1.02E-06 :ug/g dw

Average concentration : 6.45E-07 :ug/g dw

Median concentration : 6.01E-07 :ug/g dw

Minimum concentration : 2.09E-07 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 1.36E-01 :ug/l

95 % concentration : 1.33E-01 :ug/l

Average concentration : 1.28E-02 :ug/l

Median concentration : 7.97E-02 :ug/l

Minimum concentration : 5.85E-02 :ug/l

Dissolved concentration in water

Maximum concentration : 1.36E-01 :ug/l

95 % concentration : 1.32E-01 :ug/l

Average concentration : 1.28E-02 :ug/l

Median concentration : 7.94E-02 :ug/l

Minimum concentration : 5.83E-02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 9.74E-03 :ug/g dw

95 % concentration : 9.48E-03 :ug/g dw

Average concentration : 9.18E-04 :ug/g dw

Median concentration : 5.70E-03 :ug/g dw

Minimum concentration : 4.18E-03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 4.09E-08 :ug/g dw

95 % concentration : 3.98E-08 :ug/g dw

Average concentration : 3.85E-09 :ug/g dw

Median concentration : 2.39E-08 :ug/g dw

Minimum concentration : 1.75E-08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 4.09E-08 :ug/g dw

95 % concentration : 3.98E-08 :ug/g dw

Average concentration : 3.85E-09 :ug/g dw

Median concentration : 2.39E-08 :ug/g dw

Minimum concentration : 1.75E-08 :ug/g dw
54

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 4.09E-08 :ug/g dw

95 % concentration : 3.98E-08 :ug/g dw

Average concentration : 3.85E-09 :ug/g dw

Median concentration : 2.39E-08 :ug/g dw

Minimum concentration : 1.75E-08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 4.09E-08 :ug/g dw

95 % concentration : 3.98E-08 :ug/g dw

Average concentration : 3.85E-09 :ug/g dw

Median concentration : 2.39E-08 :ug/g dw

Minimum concentration : 1.75E-08 :ug/g dw

MAMPEC - Input data sheet

Compound

Name : Zinc-pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E-06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol-water coefficient : 9.00E-01 :(-) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(-) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E-05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(-)

in water

Biological degradation rate : 1.76E-01 :1/d

Hydrolytic degradation rate : 3.82E-02 :1/d

Photolytic degradation rate : 9.20E-01 :1/d

in sediment

Biological degradation rate : 6.30E-01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference : 

Environment

Description : Default marina-Swiss marina 1

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 5.00E+00 :s.e.

Depth well-mixed sediment top layer : 1.00E-01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E-02 :-/-

Nett sedimentation velocity : 1.00E-01 :m/d

pH : 6.5 :(-)
55

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :-/-

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 100 :m

Width of harbor (y1) : 100 :m

Length of harbor (x2) : 100 :m

Width of river (y2) : 100 :m

Depth of harbor : 2 :m

Length of open harbour mouth (x3) : 30 :m

Flow : 0.1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 60 :m2

Depth at harbour mouth : 2 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 15383 :m3

Reference : This is a Swiss Marina scenario taken from OECD 2005 report

 

Emission

Description : Default Marina 100% Zn-Omadine-Fresh Water 4.5

Load : 302.7375 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 302.7375 :g/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10): 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0
56

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10): 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0-10 :m

Ship Length (Class 2) : 10-50 :m

Ship Length (Class 3) : 50-100 :m

Ship Length (Class 4) : 100-150 :m

Ship Length (Class 5) : 150-200 :m

Ship Length (Class 6) : 200-250 :m

Ship Length (Class 7) : 250-300 :m

Ship Length (Class 8) : 300-350 :m

Ship Length (Class 9) : 350-400 :m

Ship Length (Class 10) : > 400 :m

Reference : all assumptions are like the inland marina scenario except LR=4.5

MAMPEC - Result Sheet

Run : Scenario 2-Inland Small Marina-LR 14.3
57

Version : MamPec 2.0

Run date : 3/16/2009 11:23:45 AM

Memo : 

Input

Environment : Default marina-Swiss marina 1

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine-Fresh Water 14.3

Load : 9.62E+02:g/d

Results

Total concentration in water

Maximum concentration : 1.08E+01 :ug/l

95 % concentration : 1.08E+01 :ug/l

Average concentration : 6.83E+00 :ug/l

Median concentration : 6.36E+00 :ug/l

Minimum concentration : 2.21E+00 :ug/l

Dissolved concentration in water

Maximum concentration : 1.08E+01 :ug/l

95 % concentration : 1.08E+01 :ug/l

Average concentration : 6.81E+00 :ug/l

Median concentration : 6.34E+00 :ug/l

Minimum concentration : 2.21E+00 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 7.74E-01 :ug/g dw

95 % concentration : 7.74E-01 :ug/g dw

Average concentration : 4.89E-01 :ug/g dw

Median concentration : 4.55E-01 :ug/g dw

Minimum concentration : 1.58E-01 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 3.25E-06 :ug/g dw

95 % concentration : 3.25E-06 :ug/g dw

Average concentration : 2.05E-06 :ug/g dw

Median concentration : 1.91E-06 :ug/g dw

Minimum concentration : 6.64E-07 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 3.25E-06 :ug/g dw

95 % concentration : 3.25E-06 :ug/g dw

Average concentration : 2.05E-06 :ug/g dw

Median concentration : 1.91E-06 :ug/g dw

Minimum concentration : 6.64E-07 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 3.25E-06 :ug/g dw
58

95 % concentration : 3.25E-06 :ug/g dw

Average concentration : 2.05E-06 :ug/g dw

Median concentration : 1.91E-06 :ug/g dw

Minimum concentration : 6.64E-07 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 3.25E-06 :ug/g dw

95 % concentration : 3.25E-06 :ug/g dw

Average concentration : 2.05E-06 :ug/g dw

Median concentration : 1.91E-06 :ug/g dw

Minimum concentration : 6.64E-07 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 4.33E-01 :ug/l

95 % concentration : 4.21E-01 :ug/l

Average concentration : 4.08E-02 :ug/l

Median concentration : 2.53E-01 :ug/l

Minimum concentration : 1.86E-01 :ug/l

Dissolved concentration in water

Maximum concentration : 4.31E-01 :ug/l

95 % concentration : 4.20E-01 :ug/l

Average concentration : 4.07E-02 :ug/l

Median concentration : 2.52E-01 :ug/l

Minimum concentration : 1.85E-01 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 3.10E-02 :ug/g dw

95 % concentration : 3.01E-02 :ug/g dw

Average concentration : 2.92E-03 :ug/g dw

Median concentration : 1.81E-02 :ug/g dw

Minimum concentration : 1.33E-02 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.30E-07 :ug/g dw

95 % concentration : 1.26E-07 :ug/g dw

Average concentration : 1.22E-08 :ug/g dw

Median concentration : 7.60E-08 :ug/g dw

Minimum concentration : 5.58E-08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.30E-07 :ug/g dw

95 % concentration : 1.26E-07 :ug/g dw

Average concentration : 1.22E-08 :ug/g dw

Median concentration : 7.60E-08 :ug/g dw

Minimum concentration : 5.58E-08 :ug/g dw

Contaminant concentration in sediment after 5 years of use
59

Maximum concentration : 1.30E-07 :ug/g dw

95 % concentration : 1.26E-07 :ug/g dw

Average concentration : 1.22E-08 :ug/g dw

Median concentration : 7.60E-08 :ug/g dw

Minimum concentration : 5.58E-08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.30E-07 :ug/g dw

95 % concentration : 1.26E-07 :ug/g dw

Average concentration : 1.22E-08 :ug/g dw

Median concentration : 7.60E-08 :ug/g dw

Minimum concentration : 5.58E-08 :ug/g dw

MAMPEC - Input data sheet

Compound

Name : Zinc-pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E-06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol-water coefficient : 9.00E-01 :(-) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(-) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E-05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(-)

in water

Biological degradation rate : 1.76E-01 :1/d

Hydrolytic degradation rate : 3.82E-02 :1/d

Photolytic degradation rate : 9.20E-01 :1/d

in sediment

Biological degradation rate : 6.30E-01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference : 

Environment

Description : Default marina-Swiss marina 1

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 5.00E+00 :s.e.

Depth well-mixed sediment top layer : 1.00E-01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E-02 :-/-

Nett sedimentation velocity : 1.00E-01 :m/d

pH : 6.5 :(-)

Chlorophyll : 3.00 :ug/l
60

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :-/-

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 100 :m

Width of harbor (y1) : 100 :m

Length of harbor (x2) : 100 :m

Width of river (y2) : 100 :m

Depth of harbor : 2 :m

Length of open harbour mouth (x3) : 30 :m

Flow : 0.1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 60 :m2

Depth at harbour mouth : 2 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 15383 :m3

Reference : This is a Swiss Marina scenario taken from OECD 2005 report

 

Emission

Description : Default Marina 100% Zn-Omadine-Fresh Water 14.3

Load : 962.0325 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 962.0325 :g/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10): 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0
61

Number of moving ships (Class 10): 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0-10 :m

Ship Length (Class 2) : 10-50 :m

Ship Length (Class 3) : 50-100 :m

Ship Length (Class 4) : 100-150 :m

Ship Length (Class 5) : 150-200 :m

Ship Length (Class 6) : 200-250 :m

Ship Length (Class 7) : 250-300 :m

Ship Length (Class 8) : 300-350 :m

Ship Length (Class 9) : 350-400 :m

Ship Length (Class 10) : > 400 :m

Reference : all assumptions are like the inland mania scenario except LR=14.3
62

Appendix C

Inputs, parameters and out put results from the MAMPEC Model run for Scenario 3 

MAMPEC - Result Sheet

Run : Scenario3-Coastal marina-LR-4.5

Version : MamPec 2.0

Run date : 3/16/2009 11:39:46 AM
63

Memo : 

Input

Environment : Default marina for salt water

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine1

Load : 3.03E+02:g/d

Results

Total concentration in water

Maximum concentration : 2.01E-01 :ug/l

95 % concentration : 1.94E-01 :ug/l

Average concentration : 1.32E-01 :ug/l

Median concentration : 1.31E-01 :ug/l

Minimum concentration : 2.79E-02 :ug/l

Dissolved concentration in water

Maximum concentration : 2.00E-01 :ug/l

95 % concentration : 1.93E-01 :ug/l

Average concentration : 1.32E-01 :ug/l

Median concentration : 1.31E-01 :ug/l

Minimum concentration : 2.78E-02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 1.44E-02 :ug/g dw

95 % concentration : 1.38E-02 :ug/g dw

Average concentration : 9.47E-03 :ug/g dw

Median concentration : 9.40E-03 :ug/g dw

Minimum concentration : 2.00E-03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 3.02E-07 :ug/g dw

95 % concentration : 2.90E-07 :ug/g dw

Average concentration : 1.99E-07 :ug/g dw

Median concentration : 1.97E-07 :ug/g dw

Minimum concentration : 4.19E-08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 3.02E-07 :ug/g dw

95 % concentration : 2.90E-07 :ug/g dw

Average concentration : 1.99E-07 :ug/g dw

Median concentration : 1.97E-07 :ug/g dw

Minimum concentration : 4.19E-08 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 3.02E-07 :ug/g dw

95 % concentration : 2.90E-07 :ug/g dw

Average concentration : 1.99E-07 :ug/g dw
64

Median concentration : 1.97E-07 :ug/g dw

Minimum concentration : 4.19E-08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 3.02E-07 :ug/g dw

95 % concentration : 2.90E-07 :ug/g dw

Average concentration : 1.99E-07 :ug/g dw

Median concentration : 1.97E-07 :ug/g dw

Minimum concentration : 4.19E-08 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 1.20E-02 :ug/l

95 % concentration : 1.04E-02 :ug/l

Average concentration : 6.46E-04 :ug/l

Median concentration : 5.36E-03 :ug/l

Minimum concentration : 4.56E-03 :ug/l

Dissolved concentration in water

Maximum concentration : 1.17E-02 :ug/l

95 % concentration : 1.03E-02 :ug/l

Average concentration : 6.44E-04 :ug/l

Median concentration : 5.34E-03 :ug/l

Minimum concentration : 4.54E-03 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 8.43E-04 :ug/g dw

95 % concentration : 7.41E-04 :ug/g dw

Average concentration : 4.62E-05 :ug/g dw

Median concentration : 3.83E-04 :ug/g dw

Minimum concentration : 3.26E-04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.77E-08 :ug/g dw

95 % concentration : 1.56E-08 :ug/g dw

Average concentration : 9.70E-10 :ug/g dw

Median concentration : 8.04E-09 :ug/g dw

Minimum concentration : 6.84E-09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.77E-08 :ug/g dw

95 % concentration : 1.56E-08 :ug/g dw

Average concentration : 9.70E-10 :ug/g dw

Median concentration : 8.04E-09 :ug/g dw

Minimum concentration : 6.84E-09 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 1.77E-08 :ug/g dw
65

95 % concentration : 1.56E-08 :ug/g dw

Average concentration : 9.70E-10 :ug/g dw

Median concentration : 8.04E-09 :ug/g dw

Minimum concentration : 6.84E-09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.77E-08 :ug/g dw

95 % concentration : 1.56E-08 :ug/g dw

Average concentration : 9.70E-10 :ug/g dw

Median concentration : 8.04E-09 :ug/g dw

Minimum concentration : 6.84E-09 :ug/g dw

MAMPEC - Input data sheet

Compound

Name : Zinc-pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E-06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol-water coefficient : 9.00E-01 :(-) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(-) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E-05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(-)

in water

Biological degradation rate : 1.76E-01 :1/d

Hydrolytic degradation rate : 3.82E-02 :1/d

Photolytic degradation rate : 9.20E-01 :1/d

in sediment

Biological degradation rate : 6.30E-01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference : 

Environment

Description : Default marina for salt water

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 3.40E+01 :s.e.

Depth well-mixed sediment top layer : 1.00E-01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E-02 :-/-

Nett sedimentation velocity : 5.00E-01 :m/d

pH : 8.0 :(-)

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l
66

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :-/-

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 400 :m

Width of harbor (y1) : 400 :m

Length of harbor (x2) : 400 :m

Width of river (y2) : 400 :m

Depth of harbor : 3.5 :m

Length of open harbour mouth (x3) : 100 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 350 :m2

Depth at harbour mouth : 3.5 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 243420:m3

Reference : 

 

Emission

Description : Default Marina 100% Zn-Omadine1

Load : 302.7375 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 302.7375 :g/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10): 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10): 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%
67

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0-10 :m

Ship Length (Class 2) : 10-50 :m

Ship Length (Class 3) : 50-100 :m

Ship Length (Class 4) : 100-150 :m

Ship Length (Class 5) : 150-200 :m

Ship Length (Class 6) : 200-250 :m

Ship Length (Class 7) : 250-300 :m

Ship Length (Class 8) : 300-350 :m

Ship Length (Class 9) : 350-400 :m

Ship Length (Class 10) : > 400 :m

Reference : Coastal Martina-LR=4.5

MAMPEC - Result Sheet

Run : Scenario 3-Coastal Marina-LR-14.3

Version : MamPec 2.0

Run date : 3/16/2009 11:37:48 AM

Memo : 
68

Input

Environment : Default marina for salt water

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn-Omadine

Load : 9.62E+02:g/d

Results

Total concentration in water

Maximum concentration : 6.39E-01 :ug/l

95 % concentration : 6.15E-01 :ug/l

Average concentration : 4.21E-01 :ug/l

Median concentration : 4.17E-01 :ug/l

Minimum concentration : 8.88E-02 :ug/l

Dissolved concentration in water

Maximum concentration : 6.37E-01 :ug/l

95 % concentration : 6.13E-01 :ug/l

Average concentration : 4.19E-01 :ug/l

Median concentration : 4.16E-01 :ug/l

Minimum concentration : 8.85E-02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 4.57E-02 :ug/g dw

95 % concentration : 4.40E-02 :ug/g dw

Average concentration : 3.01E-02 :ug/g dw

Median concentration : 2.99E-02 :ug/g dw

Minimum concentration : 6.35E-03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 9.58E-07 :ug/g dw

95 % concentration : 9.23E-07 :ug/g dw

Average concentration : 6.31E-07 :ug/g dw

Median concentration : 6.26E-07 :ug/g dw

Minimum concentration : 1.33E-07 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 9.58E-07 :ug/g dw

95 % concentration : 9.23E-07 :ug/g dw

Average concentration : 6.31E-07 :ug/g dw

Median concentration : 6.26E-07 :ug/g dw

Minimum concentration : 1.33E-07 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 9.58E-07 :ug/g dw

95 % concentration : 9.23E-07 :ug/g dw

Average concentration : 6.31E-07 :ug/g dw

Median concentration : 6.26E-07 :ug/g dw
69

Minimum concentration : 1.33E-07 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 9.58E-07 :ug/g dw

95 % concentration : 9.23E-07 :ug/g dw

Average concentration : 6.31E-07 :ug/g dw

Median concentration : 6.26E-07 :ug/g dw

Minimum concentration : 1.33E-07 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 3.70E-02 :ug/l

95 % concentration : 3.29E-02 :ug/l

Average concentration : 2.05E-03 :ug/l

Median concentration : 1.70E-02 :ug/l

Minimum concentration : 1.45E-02 :ug/l

Dissolved concentration in water

Maximum concentration : 3.73E-02 :ug/l

95 % concentration : 3.28E-02 :ug/l

Average concentration : 2.05E-03 :ug/l

Median concentration : 1.70E-02 :ug/l

Minimum concentration : 1.44E-02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 2.68E-03 :ug/g dw

95 % concentration : 2.36E-03 :ug/g dw

Average concentration : 1.47E-04 :ug/g dw

Median concentration : 1.22E-03 :ug/g dw

Minimum concentration : 1.04E-03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 5.62E-08 :ug/g dw

95 % concentration : 4.94E-08 :ug/g dw

Average concentration : 3.08E-09 :ug/g dw

Median concentration : 2.56E-08 :ug/g dw

Minimum concentration : 2.17E-08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 5.62E-08 :ug/g dw

95 % concentration : 4.94E-08 :ug/g dw

Average concentration : 3.08E-09 :ug/g dw

Median concentration : 2.56E-08 :ug/g dw

Minimum concentration : 2.17E-08 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 5.62E-08 :ug/g dw

95 % concentration : 4.94E-08 :ug/g dw
70

Average concentration : 3.08E-09 :ug/g dw

Median concentration : 2.56E-08 :ug/g dw

Minimum concentration : 2.17E-08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 5.62E-08 :ug/g dw

95 % concentration : 4.94E-08 :ug/g dw

Average concentration : 3.08E-09 :ug/g dw

Median concentration : 2.56E-08 :ug/g dw

Minimum concentration : 2.17E-08 :ug/g dw

MAMPEC - Input data sheet

Compound

Name : Zinc-pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E-06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol-water coefficient : 9.00E-01 :(-) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(-) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E-05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(-)

in water

Biological degradation rate : 1.76E-01 :1/d

Hydrolytic degradation rate : 3.82E-02 :1/d

Photolytic degradation rate : 9.20E-01 :1/d

in sediment

Biological degradation rate : 6.30E-01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference : 

Environment

Description : Default marina for salt water

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 3.40E+01 :s.e.

Depth well-mixed sediment top layer : 1.00E-01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E-02 :-/-

Nett sedimentation velocity : 5.00E-01 :m/d

pH : 8.0 :(-)

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s
71

Fraction wind perpendicular to harbour : 0.00 :-/-

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 400 :m

Width of harbor (y1) : 400 :m

Length of harbor (x2) : 400 :m

Width of river (y2) : 400 :m

Depth of harbor : 3.5 :m

Length of open harbour mouth (x3) : 100 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 350 :m2

Depth at harbour mouth : 3.5 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 243420:m3

Reference : 

 

Emission

Description : Default Marina 100% Zn-Omadine

Load : 962.0325 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 962.0325 :g/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10): 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10): 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%
72

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0-10 :m

Ship Length (Class 2) : 10-50 :m

Ship Length (Class 3) : 50-100 :m

Ship Length (Class 4) : 100-150 :m

Ship Length (Class 5) : 150-200 :m

Ship Length (Class 6) : 200-250 :m

Ship Length (Class 7) : 250-300 :m

Ship Length (Class 8) : 300-350 :m

Ship Length (Class 9) : 350-400 :m

Ship Length (Class 10) : > 400 :m

Reference : Coastal Martina-LR=14.3
73

Appendix D

Inputs, parameters and out put results from the MAMPEC Model run for Scenario 4 

MAMPEC - Result Sheet

Run : Scenario 4-Coastal Harbor-LR-4.5

Version : MamPec 2.0

Run date : 3/16/2009 12:54:42 PM

Memo : Coastal Harbor-LR=4.5
74

Input

Environment : Default estuarine harbour 1

Compound : Zinc Omadine (EPA)

Emission : Default Estuarine Harbour-5

Load : 4.35E+03:g/d

Results

Total concentration in water

Maximum concentration : 4.93E-02 :ug/l

95 % concentration : 4.54E-02 :ug/l

Average concentration : 2.41E-02 :ug/l

Median concentration : 1.83E-02 :ug/l

Minimum concentration : 3.48E-03 :ug/l

Dissolved concentration in water

Maximum concentration : 4.92E-02 :ug/l

95 % concentration : 4.52E-02 :ug/l

Average concentration : 2.40E-02 :ug/l

Median concentration : 1.82E-02 :ug/l

Minimum concentration : 3.47E-03 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 3.53E-03 :ug/g dw

95 % concentration : 3.24E-03 :ug/g dw

Average concentration : 1.72E-03 :ug/g dw

Median concentration : 1.31E-03 :ug/g dw

Minimum concentration : 2.49E-04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 7.40E-08 :ug/g dw

95 % concentration : 6.81E-08 :ug/g dw

Average concentration : 3.62E-08 :ug/g dw

Median concentration : 2.74E-08 :ug/g dw

Minimum concentration : 5.22E-09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 7.40E-08 :ug/g dw

95 % concentration : 6.81E-08 :ug/g dw

Average concentration : 3.62E-08 :ug/g dw

Median concentration : 2.74E-08 :ug/g dw

Minimum concentration : 5.22E-09 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 7.40E-08 :ug/g dw

95 % concentration : 6.81E-08 :ug/g dw

Average concentration : 3.62E-08 :ug/g dw

Median concentration : 2.74E-08 :ug/g dw

Minimum concentration : 5.22E-09 :ug/g dw
75

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 7.40E-08 :ug/g dw

95 % concentration : 6.81E-08 :ug/g dw

Average concentration : 3.62E-08 :ug/g dw

Median concentration : 2.74E-08 :ug/g dw

Minimum concentration : 5.22E-09 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 8.00E-03 :ug/l

95 % concentration : 6.65E-03 :ug/l

Average concentration : 1.62E-03 :ug/l

Median concentration : 3.40E-03 :ug/l

Minimum concentration : 1.83E-03 :ug/l

Dissolved concentration in water

Maximum concentration : 7.81E-03 :ug/l

95 % concentration : 6.63E-03 :ug/l

Average concentration : 1.62E-03 :ug/l

Median concentration : 3.39E-03 :ug/l

Minimum concentration : 1.83E-03 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 5.61E-04 :ug/g dw

95 % concentration : 4.76E-04 :ug/g dw

Average concentration : 1.16E-04 :ug/g dw

Median concentration : 2.43E-04 :ug/g dw

Minimum concentration : 1.31E-04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.18E-08 :ug/g dw

95 % concentration : 9.97E-09 :ug/g dw

Average concentration : 2.44E-09 :ug/g dw

Median concentration : 5.10E-09 :ug/g dw

Minimum concentration : 2.75E-09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.18E-08 :ug/g dw

95 % concentration : 9.97E-09 :ug/g dw

Average concentration : 2.44E-09 :ug/g dw

Median concentration : 5.10E-09 :ug/g dw

Minimum concentration : 2.75E-09 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 1.18E-08 :ug/g dw

95 % concentration : 9.97E-09 :ug/g dw

Average concentration : 2.44E-09 :ug/g dw
76

Median concentration : 5.10E-09 :ug/g dw

Minimum concentration : 2.75E-09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.18E-08 :ug/g dw

95 % concentration : 9.97E-09 :ug/g dw

Average concentration : 2.44E-09 :ug/g dw

Median concentration : 5.10E-09 :ug/g dw

Minimum concentration : 2.75E-09 :ug/g dw

MAMPEC - Input data sheet

Compound

Name : Zinc-pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E-06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol-water coefficient : 9.00E-01 :(-) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(-) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E-05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(-)

in water

Biological degradation rate : 1.76E-01 :1/d

Hydrolytic degradation rate : 3.82E-02 :1/d

Photolytic degradation rate : 9.20E-01 :1/d

in sediment

Biological degradation rate : 6.30E-01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference : 

Environment

Description : Default estuarine harbour 1

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 3.40E+01 :s.e.

Depth well-mixed sediment top layer : 2.00E-01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E-02 :-/-

Nett sedimentation velocity : 1.00E+00 :m/d

pH : 7.5 :(-)

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :-/-
77

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 1000 :m

Width of harbor (y1) : 1000 :m

Length of harbor (x2) : 5000 :m

Width of river (y2) : 500 :m

Depth of harbor : 15 :m

Length of open harbour mouth (x3) : 2500 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1.5 :m

Density difference : 0.4 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 37500 :m2

Depth at harbour mouth : 15 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 60262000 :m3

Reference : 

 

Emission

Description : Default Estuarine Harbour-5

Load : 4351.5945 :g/d

Loading due to moving ships : 310.8195 :g/d

Loading due to ships at berth : 4040.775 :g/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 0

Number of ships at berth (Class 3) : 11

Number of ships at berth (Class 4) : 5

Number of ships at berth (Class 5) : 5

Number of ships at berth (Class 6) : 1

Number of ships at berth (Class 7) : 2

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10): 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 1.8

Number of moving ships (Class 4) : 0.4

Number of moving ships (Class 5) : 0.4

Number of moving ships (Class 6) : 0.1

Number of moving ships (Class 7) : 0.1

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10): 0

Application factor (Class 1) : 0 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%
78

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 100 :%

Application factor (Class 7) : 100 :%

Application factor (Class 8) : 100 :%

Application factor (Class 9) : 100 :%

Application factor (Class 10) : 100 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 120 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0-10 :m

Ship Length (Class 2) : 10-50 :m

Ship Length (Class 3) : 50-100 :m

Ship Length (Class 4) : 100-150 :m

Ship Length (Class 5) : 150-200 :m

Ship Length (Class 6) : 200-250 :m

Ship Length (Class 7) : 250-300 :m

Ship Length (Class 8) : 300-350 :m

Ship Length (Class 9) : 350-400 :m

Ship Length (Class 10) : > 400 :m

Reference : 

MAMPEC - Result Sheet

Run : Scenario 4-Coastal Harbor-LR-14.3

Version : MamPec 2.0

Run date : 3/16/2009 12:51:59 PM

Memo : Coastal Harbor-LR=14.3

Input

Environment : Default estuarine harbour 1

Compound : Zinc Omadine (EPA)

Emission : Default Estuarine Harbour-4

Load : 1.38E+04:g/d

Results

Total concentration in water

Maximum concentration : 1.57E-01 :ug/l

95 % concentration : 1.44E-01 :ug/l

Average concentration : 7.66E-02 :ug/l

Median concentration : 5.80E-02 :ug/l

Minimum concentration : 1.11E-02 :ug/l

Dissolved concentration in water

Maximum concentration : 1.56E-01 :ug/l

95 % concentration : 1.44E-01 :ug/l
79

Average concentration : 7.63E-02 :ug/l

Median concentration : 5.79E-02 :ug/l

Minimum concentration : 1.10E-02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 1.12E-02 :ug/g dw

95 % concentration : 1.03E-02 :ug/g dw

Average concentration : 5.48E-03 :ug/g dw

Median concentration : 4.15E-03 :ug/g dw

Minimum concentration : 7.91E-04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 2.35E-07 :ug/g dw

95 % concentration : 2.16E-07 :ug/g dw

Average concentration : 1.15E-07 :ug/g dw

Median concentration : 8.71E-08 :ug/g dw

Minimum concentration : 1.66E-08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 2.35E-07 :ug/g dw

95 % concentration : 2.16E-07 :ug/g dw

Average concentration : 1.15E-07 :ug/g dw

Median concentration : 8.71E-08 :ug/g dw

Minimum concentration : 1.66E-08 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 2.35E-07 :ug/g dw

95 % concentration : 2.16E-07 :ug/g dw

Average concentration : 1.15E-07 :ug/g dw

Median concentration : 8.71E-08 :ug/g dw

Minimum concentration : 1.66E-08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 2.35E-07 :ug/g dw

95 % concentration : 2.16E-07 :ug/g dw

Average concentration : 1.15E-07 :ug/g dw

Median concentration : 8.71E-08 :ug/g dw

Minimum concentration : 1.66E-08 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 2.50E-02 :ug/l

95 % concentration : 2.11E-02 :ug/l

Average concentration : 5.16E-03 :ug/l

Median concentration : 1.08E-02 :ug/l

Minimum concentration : 5.83E-03 :ug/l

Dissolved concentration in water
80

Maximum concentration : 2.48E-02 :ug/l

95 % concentration : 2.11E-02 :ug/l

Average concentration : 5.14E-03 :ug/l

Median concentration : 1.08E-02 :ug/l

Minimum concentration : 5.81E-03 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 1.78E-03 :ug/g dw

95 % concentration : 1.51E-03 :ug/g dw

Average concentration : 3.69E-04 :ug/g dw

Median concentration : 7.72E-04 :ug/g dw

Minimum concentration : 4.17E-04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 3.74E-08 :ug/g dw

95 % concentration : 3.17E-08 :ug/g dw

Average concentration : 7.74E-09 :ug/g dw

Median concentration : 1.62E-08 :ug/g dw

Minimum concentration : 8.74E-09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 3.74E-08 :ug/g dw

95 % concentration : 3.17E-08 :ug/g dw

Average concentration : 7.74E-09 :ug/g dw

Median concentration : 1.62E-08 :ug/g dw

Minimum concentration : 8.74E-09 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 3.74E-08 :ug/g dw

95 % concentration : 3.17E-08 :ug/g dw

Average concentration : 7.74E-09 :ug/g dw

Median concentration : 1.62E-08 :ug/g dw

Minimum concentration : 8.74E-09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 3.74E-08 :ug/g dw

95 % concentration : 3.17E-08 :ug/g dw

Average concentration : 7.74E-09 :ug/g dw

Median concentration : 1.62E-08 :ug/g dw

Minimum concentration : 8.74E-09 :ug/g dw

MAMPEC - Input data sheet

Compound

Name : Zinc-pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E-06 :Pa
81

Solubility : 6.30E+00 :g/m3

Octanol-water coefficient : 9.00E-01 :(-) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(-) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E-05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(-)

in water

Biological degradation rate : 1.76E-01 :1/d

Hydrolytic degradation rate : 3.82E-02 :1/d

Photolytic degradation rate : 9.20E-01 :1/d

in sediment

Biological degradation rate : 6.30E-01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference : 

Environment

Description : Default estuarine harbour 1

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 3.40E+01 :s.e.

Depth well-mixed sediment top layer : 2.00E-01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E-02 :-/-

Nett sedimentation velocity : 1.00E+00 :m/d

pH : 7.5 :(-)

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :-/-

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 1000 :m

Width of harbor (y1) : 1000 :m

Length of harbor (x2) : 5000 :m

Width of river (y2) : 500 :m

Depth of harbor : 15 :m

Length of open harbour mouth (x3) : 2500 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1.5 :m

Density difference : 0.4 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 37500 :m2

Depth at harbour mouth : 15 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m
82

Flow : 0 :m/s

Exchange volume in 1 tidal period : 60262000 :m3

Reference : 

 

Emission

Description : Default Estuarine Harbour-4

Load : 13828.4003 :g/d

Loading due to moving ships : 987.7153 :g/d

Loading due to ships at berth : 12840.685 :g/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 0

Number of ships at berth (Class 3) : 11

Number of ships at berth (Class 4) : 5

Number of ships at berth (Class 5) : 5

Number of ships at berth (Class 6) : 1

Number of ships at berth (Class 7) : 2

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10): 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 1.8

Number of moving ships (Class 4) : 0.4

Number of moving ships (Class 5) : 0.4

Number of moving ships (Class 6) : 0.1

Number of moving ships (Class 7) : 0.1

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10): 0

Application factor (Class 1) : 0 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 100 :%

Application factor (Class 7) : 100 :%

Application factor (Class 8) : 100 :%

Application factor (Class 9) : 100 :%

Application factor (Class 10) : 100 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 120 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0-10 :m

Ship Length (Class 2) : 10-50 :m

Ship Length (Class 3) : 50-100 :m

Ship Length (Class 4) : 100-150 :m
83

Ship Length (Class 5) : 150-200 :m

Ship Length (Class 6) : 200-250 :m

Ship Length (Class 7) : 250-300 :m

Ship Length (Class 8) : 300-350 :m

Ship Length (Class 9) : 350-400 :m

Ship Length (Class 10) : > 400 :m

Reference : 

Sign-off Date : 03/25/09 

DP Barcode No. : D362199

text/markdown


### 2

However, it should be emphasized that these actives will be leaching along with z inc pyrithione

from these paints into the aquatic environment, and adverse affects to aquatic organisms may

occur from simultaneous exposure to both active ingredients. Some literature data a re available

demonstrating synergist effects when zinc and coppe r occur together, and transchelation also

may occur in the presence of other metals (e.g., manganese). Such risk is acknowledged in the

assessment but is not addressed quantitatively.

Exposure scenarios modeled (MAM

- PEC) for ZnPt in aquatic environments include inland and

coastal marinas and an estuarine harbor. EECs are calculated for the water column and sediment

within each setting. RASSB's hazard and risk conclusions are summarized below and presented

in more detail in the attached ecological risk a ssessment.

Ecological Hazard and Risk C onclusions:

• ZnPt is very highly toxic to freshwater and saltwater fish and aquatic invertebrates and

slightly to moderately toxic to terrestrial animals; based on acute toxicity, a precautionary

hazards s tatement is required for aquatic organisms (see label requirements below)

• For indoor uses, m inimal exposure and risks are expected for terrestrial and aquatic

organisms ; therefore, a risk assessment is not conducted for those uses.

• For antifoulant use, t wo freshwater (inland) and two saltwater (coastal) scenarios were

modeled using exposure predictions from MAM

- PEC. The following LOCs are

exceeded for acute and chronic risk s to aquatic organisms exposed to ZnPt in the water

column:

LOCs exceeded

Scenario Listed spp. 2 

### Non

- listed spp.

Inland Marina: Fish, acute

Aquatic invertebrates, acute N one

Inland Small Marina: Fish, acute

Fish, chronic

Aquatic invertebrates, acute

Aquatic plants Fish, acute

Fish, chronic

Aquatic plants

Coastal Marina: Aquatic invertebrates, acute N one

Coastal Harbor: None N one

• Based on extremely low predicted concentrations in sediment after one year in relation to

the sediment

- based toxicity of ZnPt to freshwater and marine amp hipods, minimal risks

are presumed for exposure to sediment containing ZnPt leached from watercraft hulls

2 

### Federally designated endangered or threatened species

### 3

• Synergistic toxic effects of ZnPt and Copper on aquatic organisms are reported in the

literature; because copper also is an active ingredie nt in most of the formulated ZnPt

antifoulant products, acute and chronic risk estimates in this assessment may

underestimate actual risks and strongly emphasize s the need for testing mixtures of the

active ingredients contained in the formulated product s

• Two degradates tested are only slightly to practically nontoxic to aquatic plants and

animals

• ZnPt is not presumed to pose risks to terrestrial animals, due to its low toxicity to birds

and mammals and little potential for bioaccumula tion

Label requirements:

A ll product labels must have the following ENVIRONMENTAL HAZARDS statement:

" This pesticide is toxic to fish and other aquatic organisms

. Do not apply directly to water

by cleaning of equipment or disposal of wastes. Do n ot allow chips and dust generated

during paint removal to enter water . Do not discharge effluent containing this product

into lakes, streams, ponds, estuaries, oceans, or other waters unless in accordance with

the requirements of a National Pollutant Disc harge Elimination System (NPDES) permit

and the permitting authorities are notified in writing prior to discharge. Do not discharge

effluent containing this product to sewer systems without previously notifying the local

sewage treatment plant authority. For guidance contact your State Water Board or

Regional Office of the EPA."

Required guideline studies for antifoulant use :

Indoor uses

The ecological effects database is adequate to support the current indoor uses

.

Antifoulant use

No additiona l guideline studies are required at this time. However, when additional information

becomes available (see below) to enable a more refined risk assessment for U. S. waters, the

following studies may be required:

Fish life cycle (850.1500)

- reserved; an d

Monitoring of representative U. S. waters (no guideline number)

– reserved [If

environmental monitoring data, based on the additional information cited below, do not

show that EECs are much lower than those calculated by the Agency (resulting in a lack

of LOC exceedances for all tested species), then actual field residue monitoring data from

multiple locations may be required. Such monitoring would determine levels of zinc,

### 4

zinc pyrithione, and/or major metabolites/degradates in surface waters and sedi ments

where major boat/ship use may occur. Submission and Agency approval; of a protocol is

required before this study is undertaken. Further, note that levels of zinc and other

chemical species determined from this field study would need to be low enoug h such that

calculation of RQs would result in a lack of LOC exceedances for all tested species.]

Additional information needed for antifoulant use :

Additional information is needed to better refine the risk assessment for U. S. harbors and

marinas. Suc h information includes but is not limited to the following:

• D imensions of marinas and harbors

• Number and sizes of watercraft in the facility, including seasonal and geographical

variations

• Environmental inputs including tides and currents, water temperature, salinity, pH,

sediment density, and others

Acknowledgements

Thanks to the following RASSB scientists for their contribution to the ecological risk

assessment:

S. Mostaghimi, Senior Scientist : MAM

- PEC modeling

J. B reithaupt, Agronomist: environmental fate

N. Shamim: environmental fate

### 5 Table of Contents

Ecological Hazards and Risk Assessment: Zinc Pyrithione

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Ecological Hazards Assessment.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Ecological Risk Assessment and Characterization. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . 8

Environmental Fate Summary

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Aquatic Exposure Assessment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

MAM

- PEC Scenarios. . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

MAM

- PEC EECs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Aquatic Risk Assessment.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4

Freshwater Fish and Invertebrates Exposed in the Water Column, Acute

. . . . . . . . . . . . 1 4

Estuarine/marine Fish and Invertebrates Exp osed in the Water Column, Acute

. . . . . . . 1 5

Aquatic Organisms Exposed in the Water Column, Chronic

. . . . . . . . . . . . . . . . . . . . . . 16

Invertebrates Exposed to Contaminated Sediments, Acute

. . . . . . . . . . . . . . . . . . . . . . . 1 9

Aquatic Plants

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Aquatic Risk Characterization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . 21

Terrestrial Risk Assessment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 23

Endangered Species Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . 2 4

References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . 25

Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

A: Data Requirements and Available Guideline Ecotoxicity Data

. . . . . . . . . . . . . . . . . . . 26

B: MAM

- PEC Runs

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . 33

### 6 Ecological Hazards and Risk Assessment

Zinc Pyrithione ( ZnPt )

ZnPt is registered for both indoor and outdoor antimicrobial u se s . Outdoor use is limited to

antifoulant paints applied to recreationa l and commercial boat hulls (below the water line) for

control of slime, algae, and marine fouling organism s (e.g., barnacles

, tubeworms ) in fresh, salt,

or brackish water

. The antifoulant paints are applied by brush, roller, or by spraying (airless).

Ind oor uses include preservative use in food packaging adhesives, food packaging materials,

conveyor belts, and repeat use polymeric food contact materials

, control of bacterial growth on

laundered products, preservation of adhesives, caulks, patching compou nds, sealants, grouts,

latex paints, coatings, dry wall, gypsum, pearlite, plaster, an d ductwork (HVAC use). ZnPt also

is used for the control of mildew in nonfood contact polymers and control of mildew and bacteria

in styrene butadiene rubber and thermop lastic resins (e.g. air ducts). Materials preservation uses

include in

- can preservation of clay, mineral, pigment and guar gum slurries, latex emulsions, and

similar high solids aqueous media.

For all currently registered indoor and outdoor uses, a hazard s assessment is conducted to meet

current labeling requirements for precautionary statements for all ZnPt products and to determine

hazard endpoints for the ecological risk assessment

. A risk assessment is conducted for the

antifoulant use, be cause the in tended application of ZnPt paints to boat hulls w ill result in

exposure of aquatic organisms due to leaching of the active ingredient from treated hulls into the

aquatic environment.

Ecological Hazards Assessment

The toxicity endpoints used in OPP's as sessments are obtained from guideline toxicity studies

conducted for wildlife, aquatic organisms, and plants (40 CFR §158). Guideline studies are

required to provide acute and reproductive/chronic measures of effect for one or more test

species in several taxonomic groups. Some studies are only required on a case

- by

- case basis,

depending on factors such as use patterns and environmental fate characteristics.

The full complement of acute and chronic ecotoxicity data available for ZnPt and two degradates

(pyridine sulfonic acid and pyrithione sulfonic acid) are presented in Appendix A. The most

sensitive species in each taxa / group is used in the assessment. Those data are tabulated below

(Table 1). The data characterize ZnPt as being highly to very hig hly toxic freshwater and

saltwater fish and invertebrates and slightly to moderately toxic to birds and mammals . A

precautionary hazards label statement is required for aquatic organisms.

### 7

Table 1. Ecotoxicity Data Used in the Hazard and Risk Assessment

Category /

Species Measurement

endpoint Toxicity

endpoint Toxicity

category

Birds:

Northern bobwhite acute LD50 60 mg ai/kg bw moderately toxic

dietary LC50 1063 ppm ai slightly toxic

Mammals:

Laboratory rat acute LD50 630 mg ai/kg bw (♂)

460 mg ai/kg bw (♀) slightly to moderately

toxic

Freshwater fish:

Fathead minnow acute LC50 2.6 μg ai/L very highly toxic

chronic NOEC 1.2 μg ai/L

Freshwater invertebrates:

Waterflea acute EC50 8.2 μg ai/L very highly toxic

chronic N OEC 2.7 μg ai/L

Estuarine/marine fish:

Sheepshead minnow acute LC50 400 μg ai/L highly toxic

chronic NOEC no data

Estuarine/marine invertebrates :

Mysid shrimp acute LC50 4.7 μg ai/L very highly toxic

chronic NOEC 2.2 μg ai/L

Aquatic plant

s:

Duckweed EC50 8.8 μg ai/L n/a

NOEC 4.0 μg ai/L

Freshwater diatom EC50 2.6 μg ai/L n/a

Saltwater diatom EC50 0.65 μg ai/L n/a

Sediment toxicity:

Freshwater amphipod EC50 or LC50 2.1 mg/kg dry wt n/a

Saltwater amphipod EC50 or LC50 <1.08 mg/kg dry wt n/a

The toxicity data for the two degradates tested are presented in Tables 5A, 6A, and 8A in

Appendix A. The degradates are only slightly to practically nontoxic to aquatic organisms.

### 8

Ecological Risk Assessment and Characterization Methods

Risk assessment and characterization integrates exposure and toxicity information to evaluate the

potential for adverse ecological effects. Risk quotients (RQs) are determined for each taxa or

ecological group by comparing exposure estimates (Es timated Environmental Concentrations,

EECs) to the available acute and chronic ecotoxicity values, where:

RQ = Exposure estimate (EEC) / Toxicity value

RQs are compared to OPP's levels of concern (LOCs). Exceedance of an LOC indicates a

potential for acute or chronic adverse effects on nontarget organisms and identifies a need for

regulatory action to mitigate risk. LOCs currently address the following risk presumptions:

acute : regulatory action may be warranted to reduce or preclude

acute exposur e

acute, listed species : additional regulatory action may be warranted to protect

listed (i.e., endangered or threatened) species

chronic : regulatory action may be needed to reduce or preclude

chronic exposure

The LOCs for the various risk presumpti ons are listed below for terrestrial and aquatic animals

and plants:

Aquatic

Animals Terrestrial

Animals Plants

Acute: 0.5 0.5 1

Acute, listed species: 0.05 0.1 1

Chronic: 1 1 n/a

T he following toxicity endpoints are used as inputs to the RQ m ethod for ex pressing risk :

Aquatic Animals

Acute: Lowest tested EC50 or LC50 for freshwater fish and

invertebrates and estuarine/marine fish and inv ertebrates

Chronic: Lowest NOEC for freshwater fish and invertebrates and

estuarine/marine fish and inv ertebrates ( early life

- stage or

full life

- cycle tests )

Terrestrial Animals

Avian acute: Lowest LD50 (single oral dose) and LC50 (subacute

dietary)

Avian chronic: Lowest NOEC (21

- week avian reproduction test)

Mammalian

acute: Lowest LD50 from single oral dose test.

### 9 Mammalian

chronic: Lowest NOEC for two

- generation reproduction test

Plants

Terrestrial: Lowest EC25 values from both seedling emergence and

vegetative vigor for both monocots and dicots

Terrestrial

listed: Lowest EC 0 5 or NOEC for both seedling emergence and

vegetative vigor for both monocots and dicots

Aquatic vascular

and algae: Lowest EC50

Aquatic vascular

listed: NOEC or EC05

When available, toxicity measures or other appropriate information from non

- guideline studies

or from th e open literature also may be used to characterize risk.

OPP generally uses computer simulation models to estimate exposure of aquatic organisms to a n

active ingredient. These models estimate EECs in surface waters and sediment using product

label info rmation (e.g., treatment site, application rate, application method,) and available

environmental

- fate data t o de termine how fast the pesticide breaks down and it s expected

move ment in the environment. The model used in the current risk assessment is desc ribed in

more detail in the Aquatic Exposure Assessment section.

For aquatic organisms, the following EECs are used to calculate the RQ for each taxa:

Fish

Acute: Instantaneous

Chronic: 60

- day average

Invertebrates

Acute: Instantaneous

Chronic: 21

- day average

Plants

Acute: Instantaneous

Chronic: Not applicable

Environmental Fate Summary

The following environmental fate summary is from the AD/RASSB's Environmental Fate

Science Chapter on Zinc Pyrithione (Zinc Omadine®) For Reregistration El igibility Document

(RED) 3 

### :

3 

### Environmental Fate Science Chapter on Z inc Pyrithione (Zinc Omadine®) For Reregistration

### 10

Zinc Pyrithione (Zinc Omadine®) appears hydrolytically stable in abiotic, buffered and

simulated water systems. Photolytically, however, it rapidly degrades with a half life of 13

minutes in buffered aqueous medium and 17 minute s in simulated sea water.

There are multiple degradation pathways for zinc pyrithione

. Under aerobic conditions, zinc

pyrithione degradation half life is 0.6 hours in aqueous system and 0.89 days in sediment.

Similarly zinc pyrithione shows a tendency of degrading anaerobically in water within 0.5 hours

and in about 19 hours in sediments.

Zinc pyrith ione shows a moderately strong tendency to bind with soils and sediments: With salt

water soil and sediment its K d 

### s are 50 and 99 respectively. Tendency to bind with freshwater soils

and sediments are less strong and observed K d 

### s are 11 and 48 respectively. There may be a short

lived water/sediment partitioning issue. There could be an acute adverse impact on benthic

aquatic organisms. However, since it degra des fairly quickly in freshwater and saltwater soils and

sediments (half lives 0.89 days to 19 hours) , the acute adverse impact may be very short

- lived. It

is not likely to persist in water and microbial soils and sediments.

Reported Octanol/Water Partiti on coefficient K OW 

### is < 1000

, and therefore zinc pyrithione is not

likely to bioa ccumulate in aquatic organisms.

Aquatic Exposure Assessment

EECs in the water column and sediment are estimated using MAM

- PEC (v. 2.0) 4

, 5 

### . The MAM

PEC model was developed b y the Institute of Environmental Studies/IVM and Delft Hydraulics

for the European Paint Makers Association to predict environmental concentrations of

antifoulant paints/coatings in various marine environments (e.g., marinas, harbors, surrounding

waters)

. The model account s for a variety of emission factors (e.g., leaching rate, watercraft

numbers and sizes, residence times, watercraft

- hull underwater surface areas), compound

- related

properties and processes (e.g., Kd, Kow, Koc, volatilization, speciation, hydrolysis, photolysis,

biodegradation), and environmental properties and processes (e.g. currents, tides, salinity, DOC,

suspended matter load, port dimensions). The default scenarios in MAM

- PEC allow the user to

alter input values for the specific local ity being assessed if data are available. For example, the

Eligibility Document (RED), April 14, 2004, A. Najm Shamim, Regulatory Management Branch

II, Antimicrobials Division

4 

### v an Hattum B

. , A

. C Baart, and J

. G

. Boon

. 2002

. Computer model to generate predicted

environmental concentrations (PECs) for antifouling products in the marine environment

- 2nd

ed. accompanying the release of Mam

- Pec version 1.4, IVM Report (E

- 02/04), Institute for

Environmental Studies, Vrije Universiteit, Amsterdam, Netherlands.

5 

### OECD. 2005. Emission Scenario Document on Antifouling Products

. OECD Environmental

Health and Safety Publications

, OECD S eries on E mission S cenario D ocuments N o. 1 3

, ENV/JM/MONO(2005)8

, Organisation for Economic Co

- operation and Development , 166 pp.

### 11

dimensions of the default marina (see below) can be altered for the known dimensions of a

specific marina, or to predict aquatic EECs for marinas of different sizes. The number and sizes

of water craft also can be changed, as well as the percentage of craft treated if actual usage

information is obtained. With a few modifications (e. g., latitude, water temperature, salinity and

tidal factors), RASSB is using the default scenarios provided by MAM

- PEC that were also used

in RASSB's 2008 assessment for copper pyrithione 6 

### . These scenarios can be further refined

when additional information on the dimensions and physical and chemical properties of U. S.

coastal and inland marinas and harbors become ava ilable.

The estimated leaching rate of zinc pyrithione from painted hulls was determined from leaching

studies conducted by the registrant and submitted to and reviewed by RASSB. Leaching data are

available for 13 paint formulations 7 

### . The highest leac hing rate was from International Copper

free White Paint, with a maximum average leach rate of 14.3 μg/cm 2 

### /day. Three other

formulations had leaching rates that exceeded 10 μg/cm 2 

### /day. The formulation with the lowest

leaching rate (4.5 μg/cm 2 

### /day) was Ec oflex BEA46 9/G044 Paint. MAM

- PEC was run using the

highest and lowest rates. For each leaching rate, maximum and average EECs are predicted for

the water column and over time (1 to 10 years) in sediment, both within the marina or harbor and

in the surrou nding waters. For each scenario, in the absence of any usage information, it is

assumed that 100% of the craft are treated. If usage information becomes available, the

scenarios can be refined to reflect that information. The EECs generated by MAM

- PEC a re used

for both acute and chronic exposure.

MAM

- PEC Scenarios

The inland (freshwater) and coastal (saltwater) marina and harbor scenarios used in this

assessment (and the copper pyrithione assessment) are briefly described below. Details of the

spec ific runs, including all input values and predicted water

- column and sediment EECs are

provided in Appendix B. Further descriptions of the MAM

- PEC model default scenarios are

provided in the OECD (2005) Emission Scenario Document on Antifouling Products

.

Inland M arina

MAM

- PEC scenario: default estuarine harbor (no tidal factors, minimal salinity)

Dimensions: 400 x 400 m, 3.5 m deep

No. craft at berth: 299 (10

- 5 m in length )

Underwater area of individual craft : 22.5 m 2



### See Appendix B for additiona l specifications on this scenario

6 

### Ecological Hazards and Risk Assessment for Copper Pyrithione, November 18, 2008, W.

Erickson, AD/RASSB

7 

### Environmental Fate Science Chapter on Zinc Pyrithione (Zinc Omadine®) and Proposed

Bridging to Copper Pyrithione, October 14, 2008, J. Breithaupt, AD/ RASSB

### 12

Inland Small M arina

MAM

- PEC scenario: modified default Swiss marina scenario from OECD (2005)

Dimensions: 100 x 100 m, 2 m deep

No. craft at berth: 75 ( < 10 m in length)

Underwater area of individual craft : 10 m 2



### See Appendix B for additional specifications on this scenario

Coastal M arina

MAM

- PEC scenario: default marina

Dimensions: 400 x 400 m, 3.5 m deep

No. craft at berth: 299 (10

- 50 m in length )

Underwater area of individual craft : 22.5 m 2



### See Appendix B for additional specifications on this scenario

Coastal H arbor

MAM

- PEC scenario: default estuarine harbor

Dimensions: 1000 x 5000 m, 15 m deep

No. craft at berth: 24 (50

- 100 m to 250

- 300 m in length)

Underwater area of individual craft : 450 to 14,814 m 2



### See Append ix B for additional specifications on this scenario

MAM

- PEC EECs

MAM

- PEC predicted EECs in the water column are presented in Table 2 for the inland scenarios

and in Table 3 for the coastal scenarios

. Table 4 presents the MAM

- PEC predicted m aximum

sediment concentrations after one year in the marina or harbor and in the surrounding waters.

Average predicted sediment concentrations did not change after two, five, and 10 years (see

Appendix B ). These predictions are further discussed in the A quatic Risk Assessment section

entitled Invertebrates Exposed to Contaminated Sediments, Acute

.

Table 2. MAM

- PEC Predicted Water

- column EECs for Inland Marinas and Surrounding

Waters

Leaching rate

(  g/cm 2 

### /day) Marina or Harbor

EEC (μg/L) Surrounding

- w ater

EEC (μg/L)

max. avg. max. avg.

Inland M arina:

14.3 0.639 0.421 0.037 0.002

4.5 0.201 0.132 0.012 <0.001

### 13

Inland Small M

arina:

14.3 10.8 6.83 0.433 0.041

4.5 3.41 2.15 0.136 0.014

Table 3. MAM

- PEC Predicted Water

- column EECs for Coastal Ma rinas and Harbors and

Surrounding Waters

Leaching rate

(  g/cm 2 

### /day) Marina or Harbor

EEC (μg/L) Surrounding

- water

EEC (μg/L)

max. avg. max. avg.

Coastal M

arina:

14.3 0.639 0.421 0.037 0.002

4.5 0.201 0.132 0.012 <0.001

Coastal H

arbor:

14.3 0.157 0. 077 0.025 0.005

4.5 0.049 0.024 0.008 0.002

Table 4. MAM

- PEC Predicted Maximum Sediment Concentrations for Inland and Coastal

Marinas and Harbors

Environment Leaching rate

(  g/cm 2 

### /day) Max. concentration (μg/g dry wt) after 1 year

marina or harbo r surrounding waters

Inland Marina 14.3 1.92E

- 07 1.12E

- 08

4.5 6.03E

- 08 3.54E

- 09

Inland Small Marina 14.3 3.25 E

- 06 1.30E

- 07

4.5 1.02 E

- 06 4.09E

- 08

Coastal Marina 14.3 9.58E

- 07 5.62E

- 08

4.5 3.02E

- 07 1.77E

- 08

Coastal Harbor 14.3 2.35E

- 07 3.74E

- 08

4.5 7.40E

- 08 1.18E

- 08

### 14

Aquatic Risk Assessment

Freshwater Fish and Invertebrates Exposed in the Water Column, Acute

RQs based on acute toxicity to the most sensitive freshwater fish species (fathead minnow) and

invertebrate species (waterflea) excee d the acute LOC for listed (e.g., threatened and

endangered) species in the inland marina scenarios, even when RQs are based on aver age EECs

(Tables 5 and 6). Non listed fish also are at risk from high exposure in small marinas. The LOC

also is exceeded f

or listed fish and aquatic invertebrates in the waters surrounding small inland

marinas.

Table 5

. Acute Risk Quotients for Freshwater Fish and Invertebrates Exposed in the

Water Column of an Inland Marina (400 x 400 m, 3.5 m deep) and Surrounding Waters

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) LC50/EC50

(μg ai/L) A cute RQ

max. avg max. avg

Inland Marina:

Fish 14.3 0.639 0.421

2.6 0.25 * 0.16 *

4.5 0.201 0.132 0.08 * 0.05 *

Invertebrates 14.3 0.639 0.421

8.2 0.08 * 0.05

4.5 0.201 0.132 0.02 0.02

Surrounding waters :

Fish 14.3 0.037 0.002

2.6 0.01 <0.01

4.5 0.012 <0.001 <0.01 <0.01

Invertebrates 14.3 0.037 0.002

8.2 0.01 <0.01

4.5 0.012 <0.001 <0.01 <0.01

* exceeds the LOC for listed species (RQ > 0.05)

### 15

Table 6

. Acut e Risk Quotients for Freshwater Fish and Invertebrates Exposed in the

Water Column of an Inland Small Marina (100 x 100 m, 2 m deep)

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) LC50/EC50

(μg ai/L) A cute RQ

max. avg max. avg

Inland Smal

l Marina:

Fish 14.3 10.8 6.83

2.6 4.1** 2.6**

4.5 3.41 2.15 1.3** 0.8**

Invertebrates 14.3 10.8 6.83

8.2 1.3** 0.8**

4.5 3.41 2.15 0.4* 0.3*

Surrounding waters :

Fish 14.3 0.433 0.041

2.6 0.2* 0.02

4.5 0.136 0.014 0.05* <0.01

Inver tebrates 14.3 0.433 0.041

8.2 0.05* <0.01

4.5 0.136 0.014 0.02 <0.01

** exceeds the LOC for listed (RQ > 0.05) and non

- listed (RQ > 0.5) species

* exceeds the LOC for listed species

Estuarine/marine Fish and Invertebrates Exposed in the Water Column, Acute

RQs based on acute toxicity to the sheepshead minnow and mysid shrimp and maximum and

average EECs in the water column exceed the acute LOC only for listed invertebrates in the

coastal marina scenario (Table 7). No LOC is exceeded for the harbor s cenario, even at

predicted maximum exposure (Table 8), or in the waters surrounding the marina.

Table 7

. Acute Risk Quotients for Salt water Fish and Invertebrates Exposed in the Water

Column of a Coastal Marina and Surrounding Waters

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) LC50

(μg ai/L) A cute RQ

max. avg max. avg

Coastal Marina:

Fish 14.3 0.639 0.421

400 <0.01 <0.01

4.5 0.201 0.132 <0.01 <0.01

Invertebrates 14.3 0.639 0.421 4.7 0.14* 0.09*

### 16

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) LC50

(μg ai/L) A cute RQ

max. avg max. avg

4.5 0.201 0.132 0.04 0.0 3

Surrounding water

s:

Fish 14.3 0.037 0.002

400 <0.01 <0.01

4.5 0.012 <0.001 <0.01 <0.01

Invertebrates 14.3 0.037 0.002

4.7 <0.01 <0.01

4.5 0.012 <0.001 <0.01 <0.01

* exceeds the LOC for listed species (RQ > 0.05)

Table 8

. Acute Risk Quotients for Salt water Fish and Invertebrates Exposed in the Water

Column of a Coastal Harbor and Surrounding Waters

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) LC50

(μg ai/L) A cute RQ

max. avg max. avg

Coastal Harbor:

Fish 14.3 0.157 0.077

40 0 <0.01 <0.01

4.5 0.049 0.024 <0.01 <0.01

Invertebrates 14.3 0.157 0.077

4.7 0.03 0.02

4.5 0.049 0.024 0.01 <0.01

Surrounding waters :

Fish 14.3 0.025 0.005

400 <0.01 <0.01

4.5 0.008 0.002 <0.01 <0.01

Invertebrates 14.3 0.025 0.005

4.7 <0.01 <0 .01

4.5 0.008 0.002 <0.01 <0.01

Aquatic Organisms Exposed in the Water Column , Chronic

The chronic LOC is exceeded for listed and nonlisted freshwater fish and invertebrates

inhabiting small inland marinas, even for average leaching EECs from the l owest leaching rate

### 17

(Table 10). Minimal chronic risk exists for larger inland marinas (Table 9) or for coastal marinas

and harbors (Tables 11, 12).

Table 9

. Chronic Risk Quotients for Freshwater Fish and Invertebrates Exposed in the

Water Column of a n Inland Marina (400 x 400 m, 3.5 m deep) and Surrounding Waters

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) NOEC

(μg ai/L) Chronic RQ

max. avg max. avg

Inland Marina:

Fish 14.3 0.639 0.421

1.2 0.5 0.4

4.5 0.201 0.132 0.2 0.1

Inv ertebrates 14.3 0.639 0.421

2.7 0.2 0.2

4.5 0.201 0.132 <0.1 <0.1

Surrounding waters :

Fish 14.3 0.037 0.002

1.2 <0.1 <0.1

4.5 0.012 <0.001 <0.1 <0.1

Invertebrates 14.3 0.037 0.002

2.7 <0.1 <0.1

4.5 0.012 <0.001 <0.1 <0.1

Table 1 0

. Chronic R isk Quotients for Freshwater Fish and Invertebrates Exposed in the

Water Column of an Inland Small Marina (100 x 100 m, 2 m deep)

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) NOEC

(μg ai/L) Chronic RQ

max. avg max. avg

Inland Small Mari na:

Fish 14.3 10.8 6.83

1.2 9.0* 5.7*

4.5 3.41 2.15 2.8* 1.8*

Invertebrates 14.3 10.8 6.83

2.7 4.0* 2.5*

4.5 3.41 2.15 1.3* 0.8

### 18

Surrounding waters :

Fish 14.3 0.433 0.041

1.2 0.4 <0.1

4.5 0.136 0.014 0.1 <0.1

Invertebrates 14.3 0.433 0 .041

2.7 0.2 <0.1

4.5 0.136 0.014 <0.1 <0.1

* exceeds the chronic LOC (RQ > 1) for listed and nonlisted species

Table 1 1

. Chronic Risk Quotients for Salt water Invertebrates Exposed in the Water

Column of a Coastal Marina and Surrounding Waters

Sit e/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) NOEC

(μg ai/L) Chronic RQ

max. avg max. avg

Coastal Marina:

Invertebrates 14.3 0.639 0.421

2.2 0.3 0.2

4.5 0.201 0.132 <0.1 <0.1

Surrounding water

s:

Invertebrates 14.3 0.037 0.002

2.2 <0.1 < 0.1

4.5 0.012 <0.001 <0.1 <0.1

Table 12

. Chronic Risk Quotients for Salt water Fish and Invertebrates Exposed in the

Water Column of a Coastal Harbor and Surrounding Waters

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L) NOEC

(μg ai/L) Ch ronic RQ

max. avg max. avg

Coastal Harbor:

Invertebrates 14.3 0.157 0.077

2.2 <0.1 <0.1

4.5 0.049 0.024 <0.1 <0.1

### 19

Surrounding waters :

Invertebrates 14.3 0.025 0.005

2.2 <0.1 <0.1

4.5 0.008 0.002 <0.1 <0.1

Invertebrates Exposed to Contam inated Sediments, Acute

Minimal risk is presumed for ben thic organisms exposed to ZnPt in sediments of marinas or

harbors. RQs based on the highest maximum sediment concentrations are orders of magnitude

below the LOC (Table 13). RQs based on average EE Cs and lower leaching rates would be even

lower than those tabulated for the highest exposure scenarios. Some uncertainty exists for

saltwater invertebrates, because a definitive toxicity value was not established. However,

because the exposure values ar e exceedingly low, it seems highly unlikely that establishing the

toxicity to saltwater invertebrates would lead to any exceedance of the LOC.

Table 13

. Acute Risk Quotients for Freshwater and Saltwater Invertebrates Exposed to

Contaminated Sediment in Inland and Coastal Marinas

Site/

Taxa Leaching rate

(  g/cm 2 

### /day) Max. EEC

(μg/g dry wt) Toxicity

(μg/g dry wt ) Max.

Acute RQ

Inland Small Marina:

Freshwater amphipod 14.3 0.00000013 2100 <<1

Coastal Marina:

Saltwater amphipod 14.3 0.00000006 <1 080 not

determined

It needs to be not ed that MAM

- PEC predicted sediment concentrations after 2, 5, and 10 years

are the same as those predicted after one year. Those predictions are based solely on the initial

exposure at Day 0 and do not consider any s ubsequent copper pyrithione input into the aquatic

environment. In fact, existing watercraft would be retreated, new craft may be treated, and other

treated craft may be entering marinas. Therefore, sediment concentrations might actually

increase over ti me, not remain constant, and this adds some uncertainty to the exposure and risk

assessment.

Aquatic Plants

RQs for nonlisted species are presented in Table 14 for both freshwater and saltwater aquatic

plants, based on the various exposure scenarios and the toxicity to duckweed (vascular sp.) and

the most sensitive non

- vascular species (algae or diatom). The LOC is exceeded for vascular and

### 20

non

- vascular species in small inland marinas . The LOC for listed vascular species also is

exceeded for small inla nd marinas (Table 15).

Table 14

. Risk Quotients for Nonlisted Aquatic Plant Species (vascular and non

- vascular)

Exposed in the Water Column of Inland and Coastal Marinas and Harbors

Site/

Taxa Leaching rate

(  g/cm 2 

### /day) EEC (μg ai/L) EC50

(μg ai/ L) RQ

max. avg max. avg

Inland Marina:

Vascular spp.

14.3 0.639 0.421 8.8 <0.1 <0.1

Non

- vascular spp. 0.639 0.421 2.6 0.2 0.2

Inland Small Marina:

Vascular spp. 14.3 10.8 6.83

8.8 1.2* 0.8

4.5 3.41 2.15 0.4 0.2

Non

- vascular spp. 14.3 10.8 6.8 3

2.6 4.1* 2.6*

4.5 3.41 2.15 1.3* 0.8

Coastal Marina:

Vascular spp. 14.3 0.639 0.421 8.8 <0.1 <0.1

Non

- vascular spp. 14.3 0.639 0.421 0.65 0.9 0.6

Coastal Harbor:

Vascular spp.

14.3 0.157 0.077 8.8 <0.1 <0.1

Non

- vascular spp. 0.157 0.077 0.65 0. 2 0.1

* exceeds the LOC (RQ > 1) for nonlisted species

### 21

Table 15

. Risk Quotients for Listed Vascular Aquatic Plant Species Exposed in the Water

Column of Inland and Coastal Marinas and Harbors

Site/

Taxa Leaching

rate

(  g/cm 2 

### /day) EEC (μg ai/L ) NOEC

(μg ai/L) RQ

max. avg max. avg

Inland Marina:

Vascular spp. 14.3 0.639 0.421

4.0 0.2 0.1

4.5 0.201 0.132 <0.1 <0.1

Inland Small Marina:

Vascular spp. 14.3 10.8 6.83

4.0 2.7* 1.7*

4.5 3.41 2.15 <0.1 <0.1

Coastal Marina:

Vascular spp. 14.3 0.639 0.421

4.0 0.2 0.1

4.5 0.201 0.132 <0.1 <0.1

Coastal Harbor:

Vascular spp. 14.3 0.157 0.077

4.0 <0.1 <0.1

4.5 0.049 0.024 <0.1 <0.1

* exceeds the LOC (RQ > 1) for listed species

Aquatic Risk C haracterization

Based on the risk quotient methodology and the Agency’s Levels of Concern

, ZnPt use as an

antifoulant coating to boat hulls poses acute and chronic risks to freshwater fish and invertebrates

exposed to leachate in the water column. Vascular and non

- vascular aquatic plants also are at

risk in small freshwater marinas. Although the LOC also is exceeded for listed saltwater

invertebrates, there currently are no federally listed species. EECs we re not modeled for the

degradates, but the available toxicity data indicate that they are only slightly to practically

nontoxic and likely to pose minimal acute and chronic risks. MAM

- PEC predicted

concentrations in sediment are much too low to be hazardous to benthic invertebrates.

Environmental exposure modeling was not conducted for the indoor uses (materials preservative)

of ZnPt. Exposure to terrestrial and aquatic organisms is expected to be minimal from the indoor

uses. Therefore, an ecological risk assessment was not conducted for those uses.

### 22

Exposure Uncertainties: For the anti foulant screening assessment, RASSB relyi es on the

MAM

- PEC European scenarios, with minor modifications (e.g., temperature, pH) for expected

U. S. conditions. The MAM

- PEC scenarios consider many measured variables for European

settings, including hydrolog ical and environmental factors, compartment sizes (e.g., marinas,

harbors), and watercraft sizes and numbers in marinas and harbors. For example, the default

marina scenario in MAM

- PEC is based on an actual French Mediterranean marina in th e Golfe

Juan (V an Hattum et al. 2002)

. The extent to which these European conditions approximate

those of U. S. marinas and harbors is unknown and needs to be determined. The risk assessment

could be refined if such information on U. S. coastal and inland marinas and h arbors were

available. Such relevant information would include environmental and hydrological conditions,

typical dimensions (and range of dimensions) of freshwater and coastal marinas and harbors,

number and sizes of watercraft, antifoulant usage, geogra phical variations in these factors, and

others. P otential risks also are largely depend ent on the extent of exposure to the leachate.

Leaching rates vary among the 13 paint formulations for which data are available, and many

uncertainties exist in the ex posure assessment.

Toxicity Uncertainties : The risk presumptions in this assessment are based solely on the ZnPt

component of the antifoulant paints. RASSB only assesses risks from individual active

ingredients, but several products containing ZnPt (3 .04

- 4.78% ai) also contain cuprous oxide

(34.34

- 45.48% ai), cuprous thiocyanate (16.95% ai), or econea (3.90% ai) as an additional

antifoulant ingredient. Leaching of those active ingredients may exacerbate the risks posed

solely by ZnPt. Cuprous oxide, for example, also is highly toxic to aquatic organisms, and

combined exposure to these two active ingredients will likely results in more severe acute and

chronic affects than if the product consisted solely of ZnPt. A more refined risk assessment

would c onsider the exposure and risk from the simultaneous exposure of aquatic organisms to

both active ingredients found in the various paints.

Several studies in the open literature demonstrate synergistic effects when ZnPt occurs in the

presence of copper. M ochida et al. (2006) determined the acute toxicity of zinc pyrithione and

copper to red sea bream ( Pagrus major ) and toy shrimp ( Heptacarpus futilirostris ). Because the

two compounds are often used together in antifoulant paints (copper is usually the mai n

ingredient in the formulated product, with ZnPt added as a booster), they also tested mixtures of

the two compounds. They found that the toxicity of ZnPt is enhanced when copper is present,

with mixtures being more toxic than predicted by the toxicities of the individual compounds. For

the shrimp, 96

- h LC50s were 120 μg/L for ZnPt and 113 μg/L for copper when each was tested

alone. The 96

- h LC50 for mixtures was 4.6 μg/L ZnPt and 28.2 μg/L copper. Based on the

individual LC50s, only about 1 6% mortalit y should occur for that mixture

. For the bream, 96

- h

LC50s were 98.2 μg/L for ZnPt and 84.4 μg/L for copper when tested alone. When tested

together, the average 96

- h LC50 for mixtures was 24μg/L ZnPt and 64.3 μg/L copper. Based on

the individual LC50s, theoretical mortality for the mixture was 44.2%. The authors concluded

that "The enhancement of toxicity in thee mixture was inferred to be caused by conversion of

ZnPT to the more toxic CuPT in the presence of Cu."

Bao et al. (2008) also found a strong synergistic effect when examining the toxicity of ZnPt

alone and in combination with copper to three marine organisms. They suggest this may be due

to tranchelation of ZnPt in the presence of copper. For the marine diatom, Thalassiosira

### 23

pseudonana , the 9 6

- h growth rate was about 47% that of the control when exposed to 2 μg/L

ZnPt. When exposed to 2 μg/L ZnPt combined with 10 μg/L Cu, growth decreased to only 11%

that of the control. A similar pattern was noted for polychaete larvae ( Hydroides elegans ) a nd an

amphipod ( Elasmopus rapax ). They conclude that ecological risk assessments based solely on

toxicity of ZnPt are probably inadequate when copper is available even at low concentrations.

When examining the toxicity of mixtures of antifouling biocid es on the brine shrimp ( Artemia

salina ), Kou tsaftis and Aoyama (2007) reported "strictly synergistic effects" of CuPt:ZnPt

mixtures (4:1, 3:2, 1:1, 2:3). Because transchelation of ZnPt may result in the coexistence of

ZnPt and CuPt in the marine environme nt, and synergistic effects from the mixtures, they

emphasize the need for tests on mixtures and not simply on the single chemicals.

Other Uncertainties: RASSB notes that the EECs in this assessment are based only on the in

service use of ZnPt leaching from watercraft hulls in the water. Emission to the environment

also can occur at application of the antifoulant paint to the hull and at removal of paint from the

hull (OECD 2005). The product label states that removed paint chips must be kept out of t he

water, it is likely that some will enter the aquatic environment in some situations. Such

additional exposure may add to risk, but the extent of that exposure is uncertain at this time and

is not addressed in the risk assessment.

Photodegradation: P y

rithione compounds , because they rapidly photodegrade into less toxic

degradates, have been suggested to pose considerably less risk to aquatic organisms than do

some other current or formerly registered antifoulants (e.g., TBT). While pyrithione

photodeg radation does occur rapidly in the presence of sunlight, photodegradation may be much

less pronounced or minimal under conditions of low light attenuation, such as beneath

watercraft, docks, and mooring structures or in the murky waters typical of many mar inas.

Bellas et al. (2005) examined the toxicity of ZnPt to sea urchin ( Paracentrotus lividus ) and

mussel ( Mytilus edulis ). Toxic effects on larval growth of sea urchin were detected at

concentrations as low as 0.16 μg ai/L . The authors calculated RQs b ased on predicted

environmental concentrations reported by Madsen et al. (2000 as cited in Bellas et al. 2005) in a

pleasure

- craft harbor in Europe. When photodegradation was ignored, RQs = 15 for mussels and

106 for urchins. However, even when photodegr adation was considered, RQs = 4.9 for mussels

and 35 for urchins. The authors conclude, based on the ir assertion that a n RQ >1 presumes risk,

that ZnPt predicted concentrations in marinas pose a threat to mussel and urchin early stages

regardless of wheth er photodegradation is a factor or not.

Terrestrial Risk Characterization

Birds and mammals are presumed to have little exposure to ZnPt from its use as an antifoulant

coating on boat hulls or from any indoor uses . Possible routes of exposure to antifou lant

leachate include dermal uptake by swimming and wading birds in harbors and consumption of

fish and invertebrates containing ZnPt residues. Based on the available data, RASSB assumes

that ZnPt is not likely to bioconcentrate in aquatic organisms ( bioc oncentration factor <1 ). For

this reason, and because ZnPt is not highly toxic to birds or mammals and predicted water

concentrations are exceedingly low (parts per trillion), ingestion of prey items exposed to ZnPt is

### 24

not likely to pose much risk to bird s or wild mammals. Possible adverse affects from dermal

exposure are unknown.

Endangered Species Considerations

Section 7 of the Endangered Species Act (ESA), 16 U.S.C. Section 1536(a)(2), requires that

federal agencies consult with the National Marine Fisheries Service (NMFS) for marine and

andronomus listed species, or with the United States Fish and Wildlife Services (FWS) for listed

wildlife and freshwater organisms, if proposing an "action" that may affect listed species or their

designated habitat. Each federal agency is required under the Act to insure that any action they

authorize, fund, or carry out is not likely to jeopardize the continued existence of a listed species

or result in the destruction or adverse modification of designated critical habitat. To jeopardize

the continued existence of a listed species is to "to engage in an action that reasonably would be

expected, directly or indirectly, to reduce appreciably the likelihood of both the survival and

recovery of a listed species in the wild by reducing the reproduction, numbers, or distribution of

the species." 50 C.F.R. §402.02.

To comply with subsection (a)(2) of the ESA, EPA’s Office of Pesticide Programs has

established procedures to evaluate whether a proposed registration action m ay directly or

indirectly appreciably reduce the likelihood of both the survival and recovery of a listed species

in the wild by reducing the reproduction, numbers, or distribution of any listed species (U.S.

EPA 2004). If any of the Listed Species LOC Cr iteria are exceeded for either direct or indirect

effects in the Agency’s screening

- level risk assessment, the Agency identifies any listed or

candidate species that may occur spatially and temporally in the footprint of the proposed use.

Further biologic al assessment is undertaken to refine the risk. The extent to which any species

may be at risk determines the need to develop a more comprehensive consultation package as

required by the ESA.

For currently registered uses of ZnPt other antifoulant paints , the Agency assumes there will be

minimal environmental exposure, and only a minimal toxicity data set is required (Overview of

the Ecological Risk Assessment Process in the Office of Pesticide Programs U.S. Environmental

Protection Agency

- Endangered an d Threatened Species Effects Determinations, 1/23/04,

Appendix A, Section IIB, p 81). Uses in these categories do not undergo a full screening

- level

risk assessment and are considered to fall under a no effect determination.

The assessment for ZnPt ant i foulant paint uses indicates that there is a potential for exposure of

listed freshwater and saltwater organisms

, and a more refined assessment is warranted for direct,

indirect

, and habitat effects. The refined assessment will involve clear delineation of the action

area associated with proposed use of ZnPt and best available information on the temporal and

spatial co

- location of listed species with respect to the action area. This analysis has not been

conducted for this assessment. An endangered spec ies effect determination will not be made at

this time.

### 25

References

Bao, V.W.W, K.M.Y. Leung, K.W.H. Kwok, A.Q. Zhang, and G.C.S. Lui. 2008. Synergistic

toxic effects of zinc pyrithione and copper to three marine species: implications on setting

app ropriate water quality criteria. Marine Pollution Bull. 57:616

- 623.

Bellas, J., Å. Granmo, and R. Beiras. 2005. Embryotoxicity of the antifouling biocide zinc

pyrithione to sea urchin (Paracentrotus lividus) and mussel (Mytilus edulis). Marine Polluti on

Bull. 50:1382

- 1385.

Koutsaftis, A. and I. Aoyama. 2007. Toxicity of four antifouling biocides and their mixtures on

the brine shrimp Artemia salina . Science Total Environ. 387:166

- 174.

Mochida, K., K. Ito, H. Harino, A. Kakuno, and K. Fujii. 200 6. Acute toxicity of pyrithione

antifouling biocides and joint toxicity with copper to red sea bream (Pagrus major) and toy

shrimp ( Heptacarpus futilirostris ). Environ. Toxicol. Chem. 25:3058

- 3064

.

OECD. 2005. Emission Scenario Document on Antifouling Products. OECD Series on

Emission Scenario Documents Number 13. ENV/JM/MONO(2005)8. Organisation for

Economic Co

- operation and Development. 166 pp.

Onduka, T., K. Mochida, K. Ito, A. Kakuno, and K. Fujii. 2007. Acute toxicity of pyrithione

photodegra dation products to some marine organisms. Shipbuilding Technol. ISST, pp. 99

- 106.

### 26

Appendix A: Data Requirements and Available Guideline Ecotoxicity Data for Zinc

Pyrithione

The toxicity endpoints used in OPP's hazards and risk assessments are obtained from guideline

toxicity studies conducted for wildlife, aquatic organisms, and plants (40 CFR §158). Guideline

studies are required to provide acute and reproductive/chronic measures of effect for one or more

test species in several taxonomic groups. Som e studies are only required on a case

- by

- case

basis, depending on factors such as use patterns, environmental fate characteristics, or toxicity to

organisms in other taxa. The available toxicity endpoints and data requirements for ZnPt are

presented below . Toxicity data for two degradates ( pyrithione sulfonic acid and pyridine

sulfonic acid ) also are available for some aquatic species.

Toxicity to Terrestrial Animals

Birds, Acute and Dietary

The Agency requires one acute

- oral study to establish the toxicity of ZnPt (technical grade active

ingredient, TGAI) to birds. The preferred test species is either the mallard ( Anas platyrhynchos )

or the northern bobwhite ( Colinus virginianus ). Avian dietary toxicity studies (northern

bobwhite and mallard) are conditionally required for antimicrobial pesticides used as antifoulant

paints and coatings . The available acute

- oral and dietary studies indicate that ZnPt is moderately

to practically nontoxic to birds (Table 1 A ). The guidelines for avian acute

- oral t oxicity (OPPTS

850.2100) and avian dietary toxicity ( OPPTS 850.2200) are satisfied.

Tabl e 1A. Acute

- oral (LD50) and Dietary (LC50) Toxicity of Zinc Pyrithione to Birds

Test

Species Test material

( % ai ) Toxicity Endpoint

(95% CI) Toxicity

Category Stud y

Status MRID

No.

Northern

bobwhite ZnPt (96) LD50 = 60 mg ai/kg bw

(44

- 81) moderately

toxic core 438646

- 11

LC50 = 1063 ppm ai

(789

- 1412) slightly

toxic core 438646

- 10

Mallard

ZnPt (96) LC50 >5000 ppm ai practically

nontoxic core 438646

- 12



### Mamma ls, Acute

The available mammalian acute toxicity data indicate that ZnPt is slightly to moderately toxic to

small mammals on an acute

- oral basis ( lab. rat LD50s = 630 mg ai/kg bw, males, and 460 mg

ai/kg bw, females ). T he human toxicology chapter for zi nc pyrithione contains more information

on a variety of mammalian toxicity studies submitted in support of the human

- health assessment.

### 27

Toxicity to Aquatic Organisms

Freshwater Fish, Acute

S tudies are required with the TGAI to establish the acute tox icity of ZnPt to freshwater fish. The

preferred test species are the rainbow trout ( Oncorhynchus mykiss ), a coldwater fish, and the

bluegill ( Lepomis macrochirus ), a sunfish. The guideline for freshwater

- fish acute toxicity

( OPPTS 850.1075 ) is satisfied.

Table 2A

. Acute Toxicity of ZnPt to Freshwater Fish Exposed in the Water Column

Test

Species Test material

(% ai) 96

- h LC50

(μg ai/L)

(95% CI) Toxicity

Category Study

Status MRID

No.

Rainbow trout 

### ZnPt (9 7.8 ) 3.6

(3.0

- 4.3) very highly

toxic core 4 38646

- 13

Fathead minnow 

### ZnPt (9 7.8 ) 2.6

(2.1

- 3.2) very highly

toxic core 438646

- 06



### Freshwater Invertebrates, Acute

A study with the TGAI is required to establish the acute toxicity of ZnPt to freshwater

invertebrates. The preferred test species is t he water flea, Daphnia magna

. The data categorize

ZnPt as being very highly toxic to freshwater invertebrates (Table 3 A )

. The guideline

requirement (OPPTS 850.1010) is satisfied.

Table 3A

. Acute Toxicity of ZnPt to Freshwater Invertebrates Exposed in the Water

Column

Test

Species Test material

(% ai) 48

- h EC50

(μg ai/L)

(95% CI) Toxicity

Category Study

Status MRID

No.

Waterflea 

### ZnPt (9 7.8 ) 8.2

(5.2

- 25.8) very highly toxic core 438646

- 04



### Estuarine/Marine Fish and Invertebrates, Acute

Acut e toxicity data for the TGAI with estuarine/marine fish and two invertebrate species are

required for antifoulant coatings and paints, because of their direct release via leaching into the

estuarine/marine environment. The preferred fish test species is s heepshead minnow

( Cyprinodon variegatus ) 

### and preferred invertebrate species are the mysid shrimp ( Mysidopsis

### 28

bahia ) and Eastern oyster ( Crassostrea virginica ). The available data categorize ZnPt as being

highly toxic to saltwater fish and very highly toxi c to saltwater invertebrates (Table 4A). The

guideline requirements for estuarine/marine fish and invertebrate acute toxicity testing ( OPPTS

850.1075

, 850.1025, and 850.1035 ) are satisfied.

Table 4A. Acute Toxicity of ZnPt to Estuarine/Marine Fish and Invertebrates Exposed in

the Water Column

Test

Species Test material

(% ai) 96

- h LC50

(μg ai/L)

(95% CI) Toxicity

Category Study

Status MRID

No.

Sheepshead

minnow ZnPt (9 7.8 ) 400

(200

- 590) highly toxic core 438646

- 05

Mysid shrimp ZnPt (9 7.8 ) 4 .7

(4.0

- 5.5) very highly

toxic core 438646

- 07

Eastern oyster ZnPt (9 7.8 ) 22.0

(18.9

- 27.3) very highly

toxic core 438646

- 0 8



### Degradates, Acute Toxicity to Fish and Aquatic Invertebrates

Some acute toxicity data are available for two ZnPt degradates (py ridine sulfonic acid and

pyrithione sulfonic acid). The data are sufficient to categorize both degradates as being only

slightly toxic to practically nontoxic to freshwater and saltwater fish and invertebrates (Table

5 A ).

Table 5 A

. Acute Toxicity of Two ZnPt Degradates to Fish and Aquatic Invertebrates

Exposed in the Water Column

Test

Species Test material

(% ai) LC50 or EC50

(μg ai/L)

(95% CI) Toxicity

Category Study

Status MRID

No.

Rainbow

trout pyridine sulfonic acid

( 98) 57,100

(48,300

- 69,800) slightly toxic core 438646

- 27

pyrithione sulfonic acid

( 98.5) 92,300

(73,600

- 124,000) slightly toxic core 438646

- 16

pyridine sulfonic acid

( 98) 68,500

(55,200

- 85,000) slightly toxic core 438646

- 2 1

### 29 pyrithione sulfonic acid

( 98.5) 58,800

(48,700

- 71,0 00) slightly toxic core 438646

- 1 8

Waterflea pyridine sulfonic acid

( 98) >122,000 practically

nontoxic core 438646

- 22

pyrithione sulfonic acid

( 98.5) >127,000 practically

nontoxic core 438646

- 19

Sheepshead

minnow pyridine sulfonic acid

( 98) >127,000 pra ctically

nontoxic core 438646

- 23

pyrithione sulfonic acid

( 98.5) >137,000 practically

nontoxic core 438646

- 17

Mysid

shrimp pyridine sulfonic acid

( 98) 71,000

(62,800

- 81,100) slightly toxic core 438646

- 26

pyrithione sulfonic acid

( 98.5) 70,300

(61,600

- 81,600) slightly toxic core 438646

- 20

Eastern

oyster pyridine sulfonic acid

( 98) 85.600

(73,300

- 102,500) slightly toxic core 438646

- 24

pyrithione sulfonic acid

(98.5) 96,200

(89,313

- 104,560) slightly toxic core 438646

- 15



### Aquatic Organisms, Chronic

Chronic testing of fish and aquatic invertebrates is required for ZnPt, because it is discharged via

leaching directly into the aquatic environment. The preferred test species are the fish and

invertebrate species most sensitive in the acute studies. The available data for ZnPt report

adverse affects on survival, growth, and reproduction occur at concentrations from about 2 to 9

μg ai/L 

### (Table 6 A ). No adverse affects of the degradate were reported at concentrations of 10 μg

ai/L or lower. 

### The guideline requirements (OPPTS 850.1400, 850.1300/1350) are satisfied.

Table 6A . Chronic Toxicity of ZnPt and a Degradate to Freshwater Fish and Invertebrates

Exposed in the Water Column

Test

Species Test material

(% ai) NOEC/LOEC

(μg ai/L) Endpoints

affected Stud y

Status MRID No.

Fathead

minnow ZnPt

(9 8.2 ) 1.2 / 2.8 hatching,

growth,

sublethal effects core 452041

- 02

### 30 pyridine

- 2

-

sulfonic acid

( 98 .2 ) NOEC = 10 none (highest

concentration tested) core 452041

- 02

Waterflea ZnPt

(9 8.2 ) 2.7 / 5.8 reproduction, grow th core 445354

- 01

Mysid

shrimp ZnPt

(9 8.2 ) 2.2 / 4.2

4.2 / 9.1 growth

reproduction core 449111

- 01



### Aquatic Plants

Aquatic plant growth testing (TGAI or TEP) is required for ZnPt because of its discharge via

leaching into the aquatic environment. Test species include duckweed ( Lemna gibba ), a vascular

plant, and four non

- vascular species: (1) freshwater green alga, Selenastrum capricornutum, (2)

marine diatom, Skeletonema costatum, (3) freshwater diatom, Navicula pelliculosa, and (4)

bluegreen cyanoba cteria, Anabaena flos

- aquae. The available aquatic plant data indicate that the

marine diatom is the most sensitive species (Table 7A). The guideline requirement for aquatic

plant growth testing (OPPTS 850.5400) is satisfied.

Table 7 A

. Toxicity of ZnPt to Aquatic Plants

Test

Species Test material

(% ai) EC50

(μg ai/L) NOEC

(μg ai/L) Study

Status MRID

No.

Duckweed ZnPt (97.8) 8.8 4.0 core 452041

- 04

Freshwater

green alga ZnPt (97.8) 28.0 7.8 core 438646

- 09

Blue

- green

alga ZnPt (9 8.3) 7.1 3.8 cor e 455649

- 01

Marine diatom ZnPt (9 8.2) 0.65 0.46 core 462503

- 05

Freshwater

diatom ZnPt (9 8.3) 2.6 2.4 core 455650

- 01



### Freshwater green alga also were tested with two degradates. Both degradates are considerably

less toxic to green alga than is ZnPt (T able 8 A ). However, there are data in the literature

indicating that two photodegradates (2

- mercaptopyridine

- N

- oxide and 2.2'

- dithio

- bis

- pyridin

- N

oxide) are about as toxic to the marine diatom ( S. costatum ) as is ZnPt (Onduka et al. 2007). In

that study, the 72

- h EC50 was 1.6 μg ai/L for ZnPt and 1.1 μg ai/L for 2

- mercaptopyridine

- N

oxide and 3.4 μg ai/L for 2.2'

- dithio

- bis

- pyridin

- N

- oxide

.

### 31

Table 8A

. Toxicity of Two Pyrithione Degradates to Aquatic Plants

Test

Species Test material

(% ai) EC50

(μg ai/L) NOEC

(μg ai/L) Study

Status MRID

No.

Freshwater

green alga pyridine sulfonic acid

( 98) 28,900 5460 core 438646

- 25

pyrithione sulfonic acid

( 98.5) 28,200 11,800 core 438646

- 14



### Terrestrial (Semi

- aquatic) Plants

A seedling

- emerge test with ri ce ( Oryza sativa ) is required for all pesticides having antifoulant

paint and coating uses. The study available for ZnPt determined an EC25 of 172 mg ai/kg (Table

9A). The guideline requirement (OPPTS 850.4225) is satisfied.

Table 9A

. Toxicity of ZnPt to Semi

- aquatic Terrestrial Plants

Test

Species Test Test material

(% ai) EC25

(mg ai/kg ) NOEC

(mg ai/kg ) Study

Status MRID

No.

Rice seedling

emergence ZnPt

(9 8.3 ) 172 100 core 462503

- 01



### Sediment Toxicity

Acute, whole

- sediment tests with fresh water and saltwater invertebrates are required for

antifoulant paints and coatings. Two studies were conducted with ZnPt (Table 10A). However,

the study testing a marine amphipod did not establish an EC50 and thus is not adequate to

calculate an RQ. The guideline requirement for a freshwater test (OPPTS 850.1735) is satisfied.

However, because an EC50 or LC50 was not determined for the marine amphipod, the guideline

requirement (OPPTS 850.1740) is not satisfied for a whole

- sediment acute toxicity test w ith a

saltwater invertebrate.

### 32

Table 10A

. Acute Sediment Toxicity of ZnPt to Freshwater and Estuarine/Marine

Invertebrates

Test

Species % ai 10

- d EC50/L C50

(mg/kg dry sediment ) Study Status MRID No.

Freshwater

amphipod

( Hyalella azteca ) ZnPt ( 9 8.2) 2.1 core 462503

- 03

Marine a mphipod

( Leptocheirus

plumulosus ) ZnPt (9 8.2) <1.08 supplemental 462503

- 04

### 33

Appendix B: Zinc Pyrithione MAM

- PEC Runs for U. S. Inland and Coastal Marinas and

Harbors and Surrounding Waters

UNITED STATES ENVIRONMENTA L PROTECTION AGENCY

WASHINGTON, D.C. 20460



### 3/1 8 /2009

MEMORANDUM

SUBJECT: Estimated Environmental Concentrations (EECs) for Antifoulant use of Zinc

Pyrithion

From: Siroos Mostaghimi, Ph.D., Senior Scientist

Risk Assessment and S cience Support Branch (RASSB)

Antimicrobials Division (7510 P )

To: Norm Cook, Chief

Risk Assessment and Science Support Branch (RASSB)

Antimicrobials Division (7510 P )

Chemical Name: Zinc

- 2

- pyridinethiol

- 1

- oxide

Chemical No.: 088002

DP No.:362201

Atta ched please find the Estimated Environmental Concentrations (EECs) for antifoulant use

of Zinc Pyrithion . The MAM

- PEC (Version 2) model was used to estimate the concentrations of

Zinc Pyrithion in water and sediments from application of antifoulant paints applied on ships and

other water recreational vehicles.

### 34



# Background:

The Arch Chemicals, Inc. has submitted an application for registration for a

manufacturing use product containing Zinc Omadine (Zinc pyrithion), for use in formulating

antifoulant pai nts. This report provides Estimated Environmental Concentrations (EECs) for the

Zinc pyrithion antifoulant use.

MAM

- PEC is used as an assessment tool for antifoulant risk assessments in Europe.

MAM

- PEC was developed by the Institute of Environmental S tudies/IVM and Delft Hydraulics

for the European Paint Makers Association (CEPE) for conducting risk assessments for

antifouling agents. The model provides prediction of environmental concentrations of

antifouling products in six generalized “typical” mar ine environments (commercial harbor,

estuarine harbor, marina, marina poorly flushed, open sea, and shipping lane). The version 2 of

MAMPEC was used for this report.

EECs are generated using MAMPEC for the two leaching rates (4.5 μg/cm 2 

### /day, and 14.3

μg/cm 2 

### /day. These leaching rates were chosen from several leaching rate studies available for

Zn

- Pyrithion. They represent a low and high in the spectrum reported as ma ximum leaching

rates for Zn

- Pyrithion.

Several MAMPEC scenarios were chosen for these runs which are briefly described

below.

The estimated environmental concentrations (EECs) could be used for ecological and

dietary (if necessary) risk assessment based on the availability of toxicity data.



# Summary of the Results:

Scenario 1

- Inland Marina

Input

Environment : Default marina 1

- Fresh water

- InLand

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn

- Omadine

- Fresh Water LR 4.5 and 14.3 μ g /cm 2 

### /day

Load : 3.03E+02:g/d and 9.62E+02:g/d, respectively.

A summary of the results for MAMPEC model run s for Inland Marina for two leaching

rates (4.5 μg /cm 2 

### /day and 14.3 μg /cm 2 

### /day ) are presented in T able 1 and 2 . Total and

dissolved concentra tions in water as well as concentrations of Zinc Pyrithion in sediment s after

one year are show n

. The detailed input and output of the MAMPEC model run are shown in

Appendix A.

### 3 5

Table 1. Estimated Environmental Concentrations of Zn

- Pyrithion in an in land marina

-- The

leaching rate is 4.5 μg /cm 2 

### /day

Total concentration

(μg /l) Dissolved (μg /l Suspended matter

(μg /g dw) Sediment

after one year

(μg /g) dw

Maximum

concentration 2.01E

- 01 2.00E

- 01 1.44E

- 02 6.03E

- 08



### 95% confidence 1.94E

- 01 1.93E

- 01 1.38E

- 02 5.81E

- 08



### Average

concentration 1.32E

- 01 1.32E

- 01 9.47E

- 03 3.97E

- 08



### Median

concentration 1.31E

- 01 1.31E

- 01 9.40E

- 03 3.94E

- 08



### Minimum

concentration 2.79E

- 02 2.78E

- 02 2.00E

- 03 8.38E

- 09



### Table 2. Estimated Environmental Concentr ations of Zn

- Pyrithion in an inland Marina The

leaching rate is 14.3 μg /cm 2 

### /day

Total concentration

(μg /l) Dissolved (μg /l Suspended matter

(μg /g dw) Sediment

after one year

(μg /g) dw

Maximum

concentration 6.39E

- 01 6.37E

- 01 4.57E

- 02 1.92E

- 07



### 9 5% confidence 6.15E

- 01 6.13E

- 01 4.40E

- 02 1.85E

- 07



### Average

concentration 4.21E

- 01 4.19E

- 01 3.01E

- 02 1.26E

- 07



### Median

concentration 4.17E

- 01 4.16E

- 01 2.99E

- 02 1.25E

- 07



### Minimum

concentration 8.88E

- 02 8.85E

- 02 6.35E

- 03 2.66E

- 08

### 36

Sce nario 2

- Inland Small Marina

Input

Environment : Default marina

- Swiss marina 1

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn

- Omadine

- Fresh Water 4.5 and 14.3 μg /cm 2 

### /day

leaching rates

Load : 3.03E+02:g/d and 9.62E+02:g/d, r espectively

.



### A summary of the results for this MAMPEC model run s are presented in T able 3 and 4

. Total and dissolved concentrations in water as well as concentrations of Zinc Pyrithion in

sediment after one year are show n

. The detailed input and output of the MAM PEC model run

are shown in Appendix B.

Table 3 . Estimated Environmental Concentrations of Zn

- Pyrithion in a Small Inland Marina

- The

leaching rate is 4.5 μg /cm 2 

### /day

Total concentration

(μg /l) Dissolved (μg /l) Suspended matter

(μg /g dw) Sediment

afte r one year

(μg /g) dw

Maximum

concentration 3.41E+00 3.40E+00 2.44E

- 01 1.02E

- 06



### 95% confidence 3.41E+00 3.40E+00 2.44E

- 01 1.02E

- 06



### Average

concentration 2.15E+00 2.14E+00 1.54E

- 01 6.45E

- 07



### Median

concentration 2.00E+00 1.99E+00 1.43E

- 01 6.01E

- 07



### Minimum

concentration 6.96E

- 01 6.94E

- 01 4.98E

- 02 2.09E

- 07



### Table 4. Estimated Environmental Concentrations of Zn

- Pyrithion in a Small Inland Marina

- The

leaching rate is 14.3 μg /cm 2 

### /day

Total concentration

(μg /l) Dissolved (μg /l Suspended matter

(μg /g dw) Sediment

after one year

(μg /g) dw

Maximum

concentration 1.08E+01 1.08E+01 7.74E

- 01 3.25E

- 06



### 95% confidence 1.08E+01 1.08E+01 7.74E

- 01 3.25E

- 06



### Average

concentration 6.83E+00 6.81E+00 4.89E

- 01 2.05E

- 06



### Median

con centration 6.36E+00 6.34E+00 4.55E

- 01 1.91E

- 06



### Minimum

concentration 2.21E+00 2.21E+00 1.58E

- 01 6.64E

- 07

### 37

Scenario 3

- Coastal Marina

Environment : Default marina for salt water

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn

- Oma dine1 for 4.5 and 14.3 μg /cm 2 

### /day

Load : 3.03E+02:g/d and 9.62E+02:g/d, respectively.

A summary of the results for this MAMPEC model run s are presented in T able 5 and 6

. Total and dissolved concentrations in water as well as concentrations of Zinc Pyri thion in

sediment after one year are show n

. The detailed input and output of the MAMPEC model run

are shown in Appendix C.

Table. 5. Estimated Environmental Concentrations of Zn

- Pyrithion in a Coastal Marina. The

Leaching rate used is 4.5 μg /cm 2 

### /day.

Total concentration

(μg /l) Dissolved (μg /L) Suspended matter

(μg /g dw) Sediment

after one year

(μg /g) dw

Maximum

concentration 2.01E

- 01 2.00E

- 01 1.44E

- 02 3.02E

- 07



### 95% confidence 1.94E

- 01 1.93E

- 01 1.38E

- 02 2.90E

- 07



### Average

concentration 1. 32E

- 01 1.32E

- 01 9.47E

- 03 1.99E

- 07



### Median

concentration 1.31E

- 01 1.31E

- 01 9.40E

- 03 1.97E

- 07



### Minimum

concentration 2.79E

- 02 2.78E

- 02 2.00E

- 03 4.19E

- 08



### Table 6. Estimated Environmental Concentrations of Zn

- Pyrithion in a Coastal Marina. The

l eaching rate used is 14.3 μg /cm 2 

### /day

Total concentration

(μg /l) Dissolved (μg /L) Suspended matter

(μg /g dw) Sediment

after one year

(μg /g) dw

Maximum

concentration 6.39E

- 01 6.37E

- 01 4.57E

- 02 9.58E

- 07



### 95% confidence 6.15E

- 01 6.13E

- 01 4.40E

- 0 2 9.23E

- 07



### Average

concentration 4.21E

- 01 4.19E

- 01 3.01E

- 02 6.31E

- 07



### Median

concentration 4.17E

- 01 4.16E

- 01 2.99E

- 02 6.26E

- 07



### Minimum

concentration 8.88E

- 02 8.85E

- 02 6.35E

- 03 1.33E

- 07



### Scenario 4

- Costal Harbor

### 38

Environment : Default estuar ine harbour 1

Compound : Zinc Omadine (EPA)

Emission : Default Estuarine Harbour

- 5, 4.5 and 14.3 μg /cm 2 

### /day leaching rates

Load : 4.35E+03:g/d and 1.38E+04:g/d, respectively.

A summary of the results for this MAMPEC model run s are presented in T able 7 and 8

. Total and dissolved concentrations in water as well as concentrations of Zinc Pyrithion in

sediment after one year are show n

. The detailed input and output of the MAMPEC model run

are shown in Appendix D.

Table. 7. Estimated Environmental Concen trations of Zn

- Pyrithion in a Costal Harbor. The

Leaching rate used was 4.5 μg /cm 2 

### /day.

Total concentration

(μg /l) Dissolved (μg /L) Suspended matter

(μg /g dw) Sediment

after one year

(μg /g) dw

Maximum

concentration 4.93E

- 02 4.92E

- 02 3.53E

- 03 7 .40E

- 08



### 95% confidence 4.54E

- 02 4.52E

- 02 3.24E

- 03 6.81E

- 08



### Average

concentration 2.41E

- 02 2.40E

- 02 1.72E

- 03 3.62E

- 08



### Median

concentration 1.83E

- 02 1.82E

- 02 1.31E

- 03 2.74E

- 08



### Minimum

concentration 3.48E

- 03 3.47E

- 03 2.49E

- 04 5.22E

- 09



### T able 8. Estimated Environmental Concentrations of Zn

- Pyrithion in a Costal Harbor. The

leaching rate used was 14.3 μg /cm 2 

### /day

Total concentration

(μg /l) Dissolved (μg /L) Suspended matter

(μg /g dw) Sediment

after one year

(μg /g) dw

Maximum

concent ration 1.57E

- 01 1.56E

- 01 1.12E

- 02 2.35E

- 07



### 95% confidence 1.44E

- 01 1.44E

- 01 1.03E

- 02 2.16E

- 07



### Average

concentration 7.66E

- 02 7.63E

- 02 5.48E

- 03 1.15E

- 07



### Median

concentration 5.80E

- 02 5.79E

- 02 4.15E

- 03 8.71E

- 08



### Minimum

concentration 1.11E

- 02 1.10E

- 02 7.91E

- 04 1.66E

- 08

### 39

These EECs estimated from the above scenarios could be used for ecological risk

assessment of both fresh and salt water.

References:

Baart, T, Boon, J, and B. Van Hattum. 200 8 . User Manual

- Quick Guide. MAM

- PEC V ersion

2 . European Commission, CEPEWL, IRM.

USEPA. 2007. Environmental Fate Science Chapter on Zinc Pyrithione (Zinc Omadine®) and

Proposed Bridging to Copper Pyrithione. Memo from James Breithaupt to Marshall Swindle.

October 14, 2008

File: C: \ Myfi les \ 200 9 Reports \ Zinc

- Pyrithion/ Estimated Environmental Concentrations (EECs)

for Zinc Pyrithion



### CC: RASSB Chemical File

Siroos Mostaghimi /RASSB

### 40 

# Appendix A

Inputs, parameters and out put results from the MAMPEC Model run for Scenario 1

### 41

MAMPEC

- Result Sheet

Run : Default marina 1

- Fresh water

- InLand Zinc Inland Marina Fresh water LR 4.5

Version : MamPec 2.0

Run date : 3/16/2009 10:37:22 AM

Memo :

Input

Environment : Default marina 1

- Fresh water

- InLand

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn

- Omadine

- Fresh Water LR 4.5

Load : 3.03E+02:g/d

Results

Total concentration in water

Max imum concentration : 2.01E

- 01 :ug/l

95 % concentration : 1.94E

- 01 :ug/l

Average concentration : 1.32E

- 01 :ug/l

Median concentration : 1.31E

- 01 :ug/l

Minimum concentration : 2.79E

- 02 :ug/l

Dissolved concentration in water

Maximum concentration : 2.00 E

- 01 :ug/l

95 % concentration : 1.93E

- 01 :ug/l

Average concentration : 1.32E

- 01 :ug/l

Median concentration : 1.31E

- 01 :ug/l

Minimum concentration : 2.78E

- 02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 1.44E

- 02 :ug/g dw

95 % concentration : 1.38E

- 02 :ug/g dw

Average concentration : 9.47E

- 03 :ug/g dw

Median concentration : 9.40E

- 03 :ug/g dw

Minimum concentration : 2.00E

- 03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 6 .03E

- 08 :ug/g dw

95 % concentration : 5.81E

- 08 :ug/g dw

Average concentration : 3.97E

- 08 :ug/g dw

Median concentration : 3.94E

- 08 :ug/g dw

Minimum concentration : 8.38E

- 09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum c oncentration : 6.03E

- 08 :ug/g dw

95 % concentration : 5.81E

- 08 :ug/g dw

Average concentration : 3.97E

- 08 :ug/g dw

Median concentration : 3.94E

- 08 :ug/g dw

Minimum concentration : 8.38E

- 09 :ug/g dw

### 42

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 6.03E

- 08 :ug/g dw

95 % concentration : 5.81E

- 08 :ug/g dw

Average concentration : 3.97E

- 08 :ug/g dw

Median concentration : 3.94E

- 08 :ug/g dw

Minimum concentration : 8.38E

- 09 :ug/g dw

Contaminant concentration in sedimen t after 10 years of use

Maximum concentration : 6.03E

- 08 :ug/g dw

95 % concentration : 5.81E

- 08 :ug/g dw

Average concentration : 3.97E

- 08 :ug/g dw

Median concentration : 3.94E

- 08 :ug/g dw

Minimum concentration : 8.38E

- 09 :ug/g dw

Results in surround ing waters

Total concentration in water

Maximum concentration : 1.20E

- 02 :ug/l

95 % concentration : 1.04E

- 02 :ug/l

Average concentration : 6.46E

- 04 :ug/l

Median concentration : 5.36E

- 03 :ug/l

Minimum concentration : 4.56E

- 03 :ug/l

Dissolved concent ration in water

Maximum concentration : 1.17E

- 02 :ug/l

95 % concentration : 1.03E

- 02 :ug/l

Average concentration : 6.44E

- 04 :ug/l

Median concentration : 5.34E

- 03 :ug/l

Minimum concentration : 4.54E

- 03 :ug/l

Contaminant concentration on suspended sol ids

Maximum concentration : 8.43E

- 04 :ug/g dw

95 % concentration : 7.42E

- 04 :ug/g dw

Average concentration : 4.62E

- 05 :ug/g dw

Median concentration : 3.84E

- 04 :ug/g dw

Minimum concentration : 3.26E

- 04 :ug/g dw

Contaminant concentration in sediment a fter 1 year of use

Maximum concentration : 3.54E

- 09 :ug/g dw

95 % concentration : 3.11E

- 09 :ug/g dw

Average concentration : 1.94E

- 10 :ug/g dw

Median concentration : 1.61E

- 09 :ug/g dw

Minimum concentration : 1.37E

- 09 :ug/g dw

Contaminant concentratio n in sediment after 2 years of use

Maximum concentration : 3.54E

- 09 :ug/g dw

95 % concentration : 3.11E

- 09 :ug/g dw

Average concentration : 1.94E

- 10 :ug/g dw

Median concentration : 1.61E

- 09 :ug/g dw

### 43

Minimum concentration : 1.37E

- 09 :ug/g dw

Contamin ant concentration in sediment after 5 years of use

Maximum concentration : 3.54E

- 09 :ug/g dw

95 % concentration : 3.11E

- 09 :ug/g dw

Average concentration : 1.94E

- 10 :ug/g dw

Median concentration : 1.61E

- 09 :ug/g dw

Minimum concentration : 1.37E

- 09 :u g/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 3.54E

- 09 :ug/g dw

95 % concentration : 3.11E

- 09 :ug/g dw

Average concentration : 1.94E

- 10 :ug/g dw

Median concentration : 1.61E

- 09 :ug/g dw

Minimum concentrati on : 1.37E

- 09 :ug/g dw



### MAMPEC

- Input data sheet

Compound

Name : Zinc

- pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E

- 06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol

- water coeff

icient : 9.00E

- 01 :(

- ) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(

- ) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E

- 05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(

- )

in water

Biological degradation rate : 1.76E

- 01 :1/d

Hydrolytic degradation rate : 3.82E

- 02 :1/d

Photolytic degradation rate : 9.20E

- 01 :1/d

in sediment

Biological degradation rate : 6.30E

- 01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Ph otolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference :

Environment

Description : Default marina 1

- Fresh water

- InLand

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 5.00E+00 :s.e.

Depth well

- mixed sediment top layer : 1.00E

- 01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E

- 02 :

- /

-

### 44

Nett sedimentation velocity : 1.00E

- 01 :m/d

pH : 6.5 :(

- )

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :

- /

- Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 400 :m

Width of harbor (y1) : 400 :m

Length of harbor (x2) : 400 :m

Width of river (y2) : 400 :m

Depth of harbor : 3.5 :m

Length of open harbour mouth (x3) : 100 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 350 :m2

Depth at harbour mouth : 3.5 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 243420 :m3

Reference :

Emission

Description : Default Marina 100% Zn

- Omadine

- Fresh Water LR 4.5

Load : 302.7375 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 302.7375 :g/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10) : 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

### 45

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10) : 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application facto r (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Un derwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0

- 10 :m

Ship Length (Class 2) : 10

- 50 :m

Ship Length (Class 3) : 50

- 100 :m

Ship Length (Cl ass 4) : 100

- 150 :m

Ship Length (Class 5) : 150

- 200 :m

Ship Length (Class 6) : 200

- 250 :m

Ship Length (Class 7) : 250

- 300 :m

Ship Length (Class 8) : 300

- 350 :m

Ship Length (Class 9) : 350

- 400 :m

Ship Length (Class 10) : > 400 :m

Reference : all assumptions are like the inland marina scenario except LR=4.5

### 46

MAMPEC

- Result Sheet

Run : Inland Marina

- Fresh water

- LR 14.3

Version : MamPec 2.0

Run date : 3/16/2009 10:29:48 AM

Memo :

Input

Environment : Default marina 1

- F resh water

- InLand

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn

- Omadine

- Fresh Water 14.3

Load : 9.62E+02:g/d

Results

Total concentration in water

Maximum concentration : 6.39E

- 01 :ug/l

95 % concentration : 6.15E

- 01 :ug/l

Average con centration : 4.21E

- 01 :ug/l

Median concentration : 4.17E

- 01 :ug/l

Minimum concentration : 8.88E

- 02 :ug/l

Dissolved concentration in water

Maximum concentration : 6.37E

- 01 :ug/l

95 % concentration : 6.13E

- 01 :ug/l

Average concentration : 4.19E

- 01 :u g/l

Median concentration : 4.16E

- 01 :ug/l

Minimum concentration : 8.85E

- 02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 4.57E

- 02 :ug/g dw

95 % concentration : 4.40E

- 02 :ug/g dw

Average concentration : 3.01E

- 02 :ug/g dw

Median concentration : 2.99E

- 02 :ug/g dw

Minimum concentration : 6.35E

- 03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.92E

- 07 :ug/g dw

95 % concentration : 1.85E

- 07 :ug/g dw

Average concentration : 1.2 6E

- 07 :ug/g dw

Median concentration : 1.25E

- 07 :ug/g dw

Minimum concentration : 2.66E

- 08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.92E

- 07 :ug/g dw

95 % concentration : 1.85E

- 07 :ug/g dw

Average con centration : 1.26E

- 07 :ug/g dw

Median concentration : 1.25E

- 07 :ug/g dw

Minimum concentration : 2.66E

- 08 :ug/g dw

Contaminant concentration in sediment after 5 years of use

### 47

Maximum concentration : 1.92E

- 07 :ug/g dw

95 % concentration : 1.85E

- 07 :ug/ g dw

Average concentration : 1.26E

- 07 :ug/g dw

Median concentration : 1.25E

- 07 :ug/g dw

Minimum concentration : 2.66E

- 08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.92E

- 07 :ug/g dw

95 % concentration : 1.85E

- 07 :ug/g dw

Average concentration : 1.26E

- 07 :ug/g dw

Median concentration : 1.25E

- 07 :ug/g dw

Minimum concentration : 2.66E

- 08 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 3.70E

- 02 :ug/l

95 % concentration : 3.29E

- 02 :ug/l

Average concentration : 2.05E

- 03 :ug/l

Median concentration : 1.70E

- 02 :ug/l

Minimum concentration : 1.45E

- 02 :ug/l

Dissolved concentration in water

Maximum concentration : 3.73E

- 02 :ug/l

95 % concentration : 3.28E

- 02 :ug/l

Average concentration : 2.05E

- 03 :ug/l

Median concentration : 1.70E

- 02 :ug/l

Minimum concentration : 1.44E

- 02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 2.68E

- 03 :ug/g dw

95 % concentration : 2.36E

- 03 :ug/g d w

Average concentration : 1.47E

- 04 :ug/g dw

Median concentration : 1.22E

- 03 :ug/g dw

Minimum concentration : 1.04E

- 03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.12E

- 08 :ug/g dw

95 % concentration : 9. 89E

- 09 :ug/g dw

Average concentration : 6.16E

- 10 :ug/g dw

Median concentration : 5.11E

- 09 :ug/g dw

Minimum concentration : 4.35E

- 09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.12E

- 08 :ug/g dw

95 % co ncentration : 9.89E

- 09 :ug/g dw

Average concentration : 6.16E

- 10 :ug/g dw

Median concentration : 5.11E

- 09 :ug/g dw

Minimum concentration : 4.35E

- 09 :ug/g dw

### 48

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 1.12E

- 08 :ug/g dw

95 % concentration : 9.89E

- 09 :ug/g dw

Average concentration : 6.16E

- 10 :ug/g dw

Median concentration : 5.11E

- 09 :ug/g dw

Minimum concentration : 4.35E

- 09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentra tion : 1.12E

- 08 :ug/g dw

95 % concentration : 9.89E

- 09 :ug/g dw

Average concentration : 6.16E

- 10 :ug/g dw

Median concentration : 5.11E

- 09 :ug/g dw

Minimum concentration : 4.35E

- 09 :ug/g dw



### MAMPEC

- Input data sheet

Compound

Name : Zinc

- pyri thione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E

- 06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol

- water coefficient : 9.00E

- 01 :(

- ) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(

- ) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E

- 05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(

- )

in water

Biological degradation rate : 1.76E

- 01 :1/d

Hydrolytic degradation rate : 3.82 E

- 02 :1/d

Photolytic degradation rate : 9.20E

- 01 :1/d

in sediment

Biological degradation rate : 6.30E

- 01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference :

Environment

Description : Default marina 1

- Fresh water

- InLand

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 2 5.0 :oC

Salinity : 5.00E+00 :s.e.

Depth well

- mixed sediment top layer : 1.00E

- 01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E

- 02 :

- /

- Nett sedimentation velocity : 1.00E

- 01 :m/d

### 49

pH : 6.5 :(

- )

Chlor ophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :

- /

- Daily maximum non tidal water level change : 0.00 :m

Length o f river, not part of harbor (x1) : 400 :m

Width of harbor (y1) : 400 :m

Length of harbor (x2) : 400 :m

Width of river (y2) : 400 :m

Depth of harbor : 3.5 :m

Length of open harbour mouth (x3) : 100 :m

Flow : 1 :m/s

Flow of flushing in to harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 350 :m2

Depth at harbour mouth : 3.5 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 243420 :m3

Reference :

Emission

Description : Default Marina 100% Zn

- Omadine

- Fresh Water 14.3

Load : 962.0325 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 962.0325 :g/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10) : 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

### 50

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10) : 0

Appli cation factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Under water ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0

- 10 :m

Ship Length (Class 2) : 10

- 50 :m

Ship Length (Class 3) : 50

- 100 :m

Ship Length (Class 4) : 100

- 150 :m

Ship Length (Class 5) : 150

- 200 :m

Ship Length (Class 6) : 200

- 250 :m

Ship Length (Class 7) : 250

- 300 :m

Ship Length (Class 8) : 300

- 350 :m

Ship Length (Class 9) : 350

- 400 :m

Ship Length (Class 10) : > 400 :m

Reference : all assumptions are like the inland marina scenario except LR=14.3

### 51 

# Appendix B

Inputs, parameters and out put results from the MAMPEC Model run for Scenario 2

MAMPEC

- Result Sheet

### 52

Run : Scenario2

- Inland Small Marina

- LR 4.5

Version : MamPec 2.0

Run date : 3/16/2009 11:25 :48 AM

Memo :

Input

Environment : Default marina

- Swiss marina 1

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn

- Omadine

- Fresh Water 4.5

Load : 3.03E+02:g/d

Results

Total concentration in water

Maximum concentration : 3.41E+00 :ug/l

95 % concentration : 3.41E+00 :ug/l

Average concentration : 2.15E+00 :ug/l

Median concentration : 2.00E+00 :ug/l

Minimum concentration : 6.96E

- 01 :ug/l

Dissolved concentration in water

Maximum concentration : 3.40E+00 :ug/l

95 % concentration : 3.40 E+00 :ug/l

Average concentration : 2.14E+00 :ug/l

Median concentration : 1.99E+00 :ug/l

Minimum concentration : 6.94E

- 01 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 2.44E

- 01 :ug/g dw

95 % concentration : 2.44E

- 01 :ug /g dw

Average concentration : 1.54E

- 01 :ug/g dw

Median concentration : 1.43E

- 01 :ug/g dw

Minimum concentration : 4.98E

- 02 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.02E

- 06 :ug/g dw

95 % concentration : 1.02E

- 06 :ug/g dw

Average concentration : 6.45E

- 07 :ug/g dw

Median concentration : 6.01E

- 07 :ug/g dw

Minimum concentration : 2.09E

- 07 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.02E

- 06 :ug/g dw

95 % concentration : 1.02E

- 06 :ug/g dw

Average concentration : 6.45E

- 07 :ug/g dw

Median concentration : 6.01E

- 07 :ug/g dw

Minimum concentration : 2.09E

- 07 :ug/g dw

Contaminant concentration in sediment after 5 years of use

### 53

Maximum concentration : 1.02E

- 06 :ug/g dw

95 % concentration : 1.02E

- 06 :ug/g dw

Average concentration : 6.45E

- 07 :ug/g dw

Median concentration : 6.01E

- 07 :ug/g dw

Minimum concentration : 2.09E

- 07 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum conc entration : 1.02E

- 06 :ug/g dw

95 % concentration : 1.02E

- 06 :ug/g dw

Average concentration : 6.45E

- 07 :ug/g dw

Median concentration : 6.01E

- 07 :ug/g dw

Minimum concentration : 2.09E

- 07 :ug/g dw

Results in surrounding waters

Total concentration in wa ter

Maximum concentration : 1.36E

- 01 :ug/l

95 % concentration : 1.33E

- 01 :ug/l

Average concentration : 1.28E

- 02 :ug/l

Median concentration : 7.97E

- 02 :ug/l

Minimum concentration : 5.85E

- 02 :ug/l

Dissolved concentration in water

Maximum concentratio n : 1.36E

- 01 :ug/l

95 % concentration : 1.32E

- 01 :ug/l

Average concentration : 1.28E

- 02 :ug/l

Median concentration : 7.94E

- 02 :ug/l

Minimum concentration : 5.83E

- 02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 9.74E

- 03 :ug/g dw

95 % concentration : 9.48E

- 03 :ug/g dw

Average concentration : 9.18E

- 04 :ug/g dw

Median concentration : 5.70E

- 03 :ug/g dw

Minimum concentration : 4.18E

- 03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentra tion : 4.09E

- 08 :ug/g dw

95 % concentration : 3.98E

- 08 :ug/g dw

Average concentration : 3.85E

- 09 :ug/g dw

Median concentration : 2.39E

- 08 :ug/g dw

Minimum concentration : 1.75E

- 08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

M aximum concentration : 4.09E

- 08 :ug/g dw

95 % concentration : 3.98E

- 08 :ug/g dw

Average concentration : 3.85E

- 09 :ug/g dw

Median concentration : 2.39E

- 08 :ug/g dw

Minimum concentration : 1.75E

- 08 :ug/g dw

### 54

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 4.09E

- 08 :ug/g dw

95 % concentration : 3.98E

- 08 :ug/g dw

Average concentration : 3.85E

- 09 :ug/g dw

Median concentration : 2.39E

- 08 :ug/g dw

Minimum concentration : 1.75E

- 08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 4.09E

- 08 :ug/g dw

95 % concentration : 3.98E

- 08 :ug/g dw

Average concentration : 3.85E

- 09 :ug/g dw

Median concentration : 2.39E

- 08 :ug/g dw

Minimum concentration : 1.75E

- 08 :ug/g dw



### MAMPEC

- In put data sheet

Compound

Name : Zinc

- pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E

- 06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol

- water coefficient : 9.00E

- 01 :(

- ) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(

- ) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E

- 05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(

- )

in water

Biological degradation rate : 1.7 6E

- 01 :1/d

Hydrolytic degradation rate : 3.82E

- 02 :1/d

Photolytic degradation rate : 9.20E

- 01 :1/d

in sediment

Biological degradation rate : 6.30E

- 01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+ 00 :1/d

Advanced Photodegradation calculation : False

Reference :

Environment

Description : Default marina

- Swiss marina 1

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic ca rbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 5.00E+00 :s.e.

Depth well

- mixed sediment top layer : 1.00E

- 01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E

- 02 :

- /

- Nett sedimentation velocity : 1.00E

- 01 :m/d

pH : 6.5 :(

- )

### 55

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :

- /

- Daily maximum non ti dal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 100 :m

Width of harbor (y1) : 100 :m

Length of harbor (x2) : 100 :m

Width of river (y2) : 100 :m

Depth of harbor : 2 :m

Length of open harbour mouth (x3) : 30 : m

Flow : 0.1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 60 :m2

Depth at harbour mouth : 2 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 15383 :m3

Reference : T his is a Swiss Marina scenario taken from OECD 2005 report

Emission

Description : Default Marina 100% Zn

- Omadine

- Fresh Water 4.5

Load : 302.7375 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 302.7375 :g/d

Leachi ng rate ships at berth : 4.5 :ug/cm2/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number o f ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10) : 0

Number of moving ships ( Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

Number of moving ship s (Class 8) : 0

### 56

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10) : 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Applicati on factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 148 14 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0

- 10 :m

Ship Length (Class 2) : 10

- 50 :m

Ship Length (Class 3) : 50

- 100 :m

Ship Le ngth (Class 4) : 100

- 150 :m

Ship Length (Class 5) : 150

- 200 :m

Ship Length (Class 6) : 200

- 250 :m

Ship Length (Class 7) : 250

- 300 :m

Ship Length (Class 8) : 300

- 350 :m

Ship Length (Class 9) : 350

- 400 :m

Ship Length (Class 10) : > 400 :m

Refe rence : all assumptions are like the inland marina scenario except LR=4.5



### MAMPEC

- Result Sheet

Run : Scenario 2

- Inland Small Marina

- LR 14.3

### 57

Version : MamPec 2.0

Run date : 3/16/2009 11:23:45 AM

Memo :

Input

Environment : Defaul t marina

- Swiss marina 1

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn

- Omadine

- Fresh Water 14.3

Load : 9.62E+02:g/d

Results

Total concentration in water

Maximum concentration : 1.08E+01 :ug/l

95 % concentration : 1.08E+01 :ug/l

Avera ge concentration : 6.83E+00 :ug/l

Median concentration : 6.36E+00 :ug/l

Minimum concentration : 2.21E+00 :ug/l

Dissolved concentration in water

Maximum concentration : 1.08E+01 :ug/l

95 % concentration : 1.08E+01 :ug/l

Average concentration : 6.81E+ 00 :ug/l

Median concentration : 6.34E+00 :ug/l

Minimum concentration : 2.21E+00 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 7.74E

- 01 :ug/g dw

95 % concentration : 7.74E

- 01 :ug/g dw

Average concentration : 4.89E

- 01 :u g/g dw

Median concentration : 4.55E

- 01 :ug/g dw

Minimum concentration : 1.58E

- 01 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 3.25E

- 06 :ug/g dw

95 % concentration : 3.25E

- 06 :ug/g dw

Average concentration : 2.05E

- 06 :ug/g dw

Median concentration : 1.91E

- 06 :ug/g dw

Minimum concentration : 6.64E

- 07 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 3.25E

- 06 :ug/g dw

95 % concentration : 3.25E

- 06 :ug/g dw

Avera ge concentration : 2.05E

- 06 :ug/g dw

Median concentration : 1.91E

- 06 :ug/g dw

Minimum concentration : 6.64E

- 07 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 3.25E

- 06 :ug/g dw

### 58

95 % concentration : 3.25E

- 0 6 :ug/g dw

Average concentration : 2.05E

- 06 :ug/g dw

Median concentration : 1.91E

- 06 :ug/g dw

Minimum concentration : 6.64E

- 07 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 3.25E

- 06 :ug/g dw

95 % concen tration : 3.25E

- 06 :ug/g dw

Average concentration : 2.05E

- 06 :ug/g dw

Median concentration : 1.91E

- 06 :ug/g dw

Minimum concentration : 6.64E

- 07 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 4.33E

- 01 :ug /l

95 % concentration : 4.21E

- 01 :ug/l

Average concentration : 4.08E

- 02 :ug/l

Median concentration : 2.53E

- 01 :ug/l

Minimum concentration : 1.86E

- 01 :ug/l

Dissolved concentration in water

Maximum concentration : 4.31E

- 01 :ug/l

95 % concentration : 4 .20E

- 01 :ug/l

Average concentration : 4.07E

- 02 :ug/l

Median concentration : 2.52E

- 01 :ug/l

Minimum concentration : 1.85E

- 01 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 3.10E

- 02 :ug/g dw

95 % concentration : 3.01E

- 02 :ug/g dw

Average concentration : 2.92E

- 03 :ug/g dw

Median concentration : 1.81E

- 02 :ug/g dw

Minimum concentration : 1.33E

- 02 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.30E

- 07 :ug/g dw

95 % concentrati on : 1.26E

- 07 :ug/g dw

Average concentration : 1.22E

- 08 :ug/g dw

Median concentration : 7.60E

- 08 :ug/g dw

Minimum concentration : 5.58E

- 08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.30E

- 07 :ug/g dw

95 % concentration : 1.26E

- 07 :ug/g dw

Average concentration : 1.22E

- 08 :ug/g dw

Median concentration : 7.60E

- 08 :ug/g dw

Minimum concentration : 5.58E

- 08 :ug/g dw

Contaminant concentration in sediment after 5 years of use

### 59

Maximum concentration : 1.3 0E

- 07 :ug/g dw

95 % concentration : 1.26E

- 07 :ug/g dw

Average concentration : 1.22E

- 08 :ug/g dw

Median concentration : 7.60E

- 08 :ug/g dw

Minimum concentration : 5.58E

- 08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum co ncentration : 1.30E

- 07 :ug/g dw

95 % concentration : 1.26E

- 07 :ug/g dw

Average concentration : 1.22E

- 08 :ug/g dw

Median concentration : 7.60E

- 08 :ug/g dw

Minimum concentration : 5.58E

- 08 :ug/g dw



### MAMPEC

- Input data sheet

Compound

Name : Zi nc

- pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E

- 06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol

- water coefficient : 9.00E

- 01 :(

- ) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3 .40E+00 :(

- ) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E

- 05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(

- )

in water

Biological degradation rate : 1.76E

- 01 :1/d

Hydrolytic degradation rate : 3.82E

- 02 :1/d

Photolytic degradation rate : 9.20E

- 01 :1/d

in sediment

Biological degradation rate : 6.30E

- 01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calcula tion : False

Reference :

Environment

Description : Default marina

- Swiss marina 1

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 5.00E+00 :s.e.

Depth well

- mixed sediment top layer : 1.00E

- 01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E

- 02 :

- /

- Nett sedimentation velocity : 1.00E

- 01 :m/d

pH : 6.5 :(

- )

Chlo rophyll : 3.00 :ug/l

### 60

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :

- /

- Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 100 :m

Width of harbor (y1) : 100 :m

Length of harbor (x2) : 100 :m

Width of river (y2) : 100 :m

Depth of harbor : 2 :m

Length of open harbour mouth (x3) : 30 :m

Flow : 0.1 :m/s

Flow of flushing in to harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 60 :m2

Depth at harbour mouth : 2 :m

Height underwater dam at mouth : 0 :m

Wi dth underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 15383 :m3

Reference : This is a Swiss Marina scenario taken from OECD 2005 report

Emission

Description : Default Marina 100% Zn

- Omadine

- Fresh Water 14.3

Load : 962.0325 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 962.0325 :g/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Le aching rate ships at berth : 14.3 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10) : 0

Number of moving ships (Class 1) : 0

Number of moving ships (Clas s 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0

Number of moving ships (C lass 9) : 0

### 61

Number of moving ships (Class 10) : 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22 .5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0

- 10 :m

Ship Length (Class 2) : 10

- 50 :m

Ship Length (Class 3) : 50

- 100 :m

Ship Length (Class 4) : 100

- 150 :m

Ship Length (Class 5) : 150

- 200 :m

Ship Length (Class 6) : 200

- 250 :m

Ship Length (Class 7) : 250

- 300 :m

Ship Length (Class 8) : 300

- 350 :m

Ship Length (Class 9) : 350

- 400 :m

Ship Length (Class 10) : > 400 :m

Reference : all assumptions are like the inland mania scenario except LR=14.3

### 62 

# Appendix C

Inputs, parameters and out put results from the MAMPEC Model run for Scenario 3

MAMPEC

- Result Sheet

Run : Scenario3

- Coastal marina

- LR

- 4.5

Version : MamPec 2.0

Run date : 3/16/2009 11:39:46 AM

### 63

Memo :

Input

Environment : Default marina for salt water

Compound : Zinc Omadine (EPA)

Emission : Default Marina 100% Zn

- Omadine1

Load : 3.03E+02:g/d

Results

Total concentration in water

Maximum concentration : 2.01E

- 01 :ug/l

95 % concentration : 1.94E

- 01 :ug/l

Average concentration : 1.32E

- 01 :ug/l

Median concentration : 1.31E

- 01 :ug/l

Minimum concentration : 2.79E

- 02 :ug/l

Dissolved concentration in water

Maximum concentration : 2.00E

- 01 :ug/l

95 % concentration : 1.93E

- 01 :ug/l

Average concentration : 1.32E

- 01 :ug/l

Median concentration : 1.31E

- 01 :ug/l

Minimum concentration : 2.78E

- 02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 1.44E

- 02 : ug/g dw

95 % concentration : 1.38E

- 02 :ug/g dw

Average concentration : 9.47E

- 03 :ug/g dw

Median concentration : 9.40E

- 03 :ug/g dw

Minimum concentration : 2.00E

- 03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentratio n : 3.02E

- 07 :ug/g dw

95 % concentration : 2.90E

- 07 :ug/g dw

Average concentration : 1.99E

- 07 :ug/g dw

Median concentration : 1.97E

- 07 :ug/g dw

Minimum concentration : 4.19E

- 08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maxi mum concentration : 3.02E

- 07 :ug/g dw

95 % concentration : 2.90E

- 07 :ug/g dw

Average concentration : 1.99E

- 07 :ug/g dw

Median concentration : 1.97E

- 07 :ug/g dw

Minimum concentration : 4.19E

- 08 :ug/g dw

Contaminant concentration in sediment after 5 y ears of use

Maximum concentration : 3.02E

- 07 :ug/g dw

95 % concentration : 2.90E

- 07 :ug/g dw

Average concentration : 1.99E

- 07 :ug/g dw

### 64

Median concentration : 1.97E

- 07 :ug/g dw

Minimum concentration : 4.19E

- 08 :ug/g dw

Contaminant concentration in se diment after 10 years of use

Maximum concentration : 3.02E

- 07 :ug/g dw

95 % concentration : 2.90E

- 07 :ug/g dw

Average concentration : 1.99E

- 07 :ug/g dw

Median concentration : 1.97E

- 07 :ug/g dw

Minimum concentration : 4.19E

- 08 :ug/g dw

Results in sur rounding waters

Total concentration in water

Maximum concentration : 1.20E

- 02 :ug/l

95 % concentration : 1.04E

- 02 :ug/l

Average concentration : 6.46E

- 04 :ug/l

Median concentration : 5.36E

- 03 :ug/l

Minimum concentration : 4.56E

- 03 :ug/l

Dissolved co ncentration in water

Maximum concentration : 1.17E

- 02 :ug/l

95 % concentration : 1.03E

- 02 :ug/l

Average concentration : 6.44E

- 04 :ug/l

Median concentration : 5.34E

- 03 :ug/l

Minimum concentration : 4.54E

- 03 :ug/l

Contaminant concentration on suspende d solids

Maximum concentration : 8.43E

- 04 :ug/g dw

95 % concentration : 7.41E

- 04 :ug/g dw

Average concentration : 4.62E

- 05 :ug/g dw

Median concentration : 3.83E

- 04 :ug/g dw

Minimum concentration : 3.26E

- 04 :ug/g dw

Contaminant concentration in sedim ent after 1 year of use

Maximum concentration : 1.77E

- 08 :ug/g dw

95 % concentration : 1.56E

- 08 :ug/g dw

Average concentration : 9.70E

- 10 :ug/g dw

Median concentration : 8.04E

- 09 :ug/g dw

Minimum concentration : 6.84E

- 09 :ug/g dw

Contaminant concent ration in sediment after 2 years of use

Maximum concentration : 1.77E

- 08 :ug/g dw

95 % concentration : 1.56E

- 08 :ug/g dw

Average concentration : 9.70E

- 10 :ug/g dw

Median concentration : 8.04E

- 09 :ug/g dw

Minimum concentration : 6.84E

- 09 :ug/g dw

Con taminant concentration in sediment after 5 years of use

Maximum concentration : 1.77E

- 08 :ug/g dw

### 65

95 % concentration : 1.56E

- 08 :ug/g dw

Average concentration : 9.70E

- 10 :ug/g dw

Median concentration : 8.04E

- 09 :ug/g dw

Minimum concentration : 6.84E

- 0 9 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.77E

- 08 :ug/g dw

95 % concentration : 1.56E

- 08 :ug/g dw

Average concentration : 9.70E

- 10 :ug/g dw

Median concentration : 8.04E

- 09 :ug/g dw

Minimum concen tration : 6.84E

- 09 :ug/g dw



### MAMPEC

- Input data sheet

Compound

Name : Zinc

- pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E

- 06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol

- water coefficient : 9.00E

- 01 :(

- ) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(

- ) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E

- 05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(

- )

in w ater

Biological degradation rate : 1.76E

- 01 :1/d

Hydrolytic degradation rate : 3.82E

- 02 :1/d

Photolytic degradation rate : 9.20E

- 01 :1/d

in sediment

Biological degradation rate : 6.30E

- 01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1 /d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference :

Environment

Description : Default marina for salt water

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 3.40E+01 :s.e.

Depth well

- mixed sediment top layer : 1.00E

- 01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3 .00E

- 02 :

- /

- Nett sedimentation velocity : 5.00E

- 01 :m/d

pH : 8.0 :(

- )

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

### 66

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to h arbour : 0.00 :

- /

- Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 400 :m

Width of harbor (y1) : 400 :m

Length of harbor (x2) : 400 :m

Width of river (y2) : 400 :m

Depth of harbor : 3.5 : m

Length of open harbour mouth (x3) : 100 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 350 :m2

Depth at harbour mouth : 3.5 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 243420 :m3

Reference :

Emission

Description : Default Marina 100% Zn

- Omadine1

Load : 302.7375 :g/d

Loading due to moving ships : 0 :g/d

Loading due to ships at berth : 302.7375 :g/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10) : 0

Number of moving ships (Class 1) : 0

Number of movin g ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0

Number of mo ving ships (Class 9) : 0

Number of moving ships (Class 10) : 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

### 67

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 : %

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Class 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area ( Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0

- 10 :m

Ship Length (Class 2) : 10

- 50 :m

Ship Length (Class 3) : 50

- 100 :m

Ship Length (Class 4) : 100

- 150 : m

Ship Length (Class 5) : 150

- 200 :m

Ship Length (Class 6) : 200

- 250 :m

Ship Length (Class 7) : 250

- 300 :m

Ship Length (Class 8) : 300

- 350 :m

Ship Length (Class 9) : 350

- 400 :m

Ship Length (Class 10) : > 400 :m

Reference : Coastal Martina

- LR=4.5



### MAMPEC

- Result Sheet

Run : Scenario 3

- Coastal Marina

- LR

- 14.3

Version : MamPec 2.0

Run date : 3/16/2009 11:37:48 AM

Memo :

### 68

Input

Environment : Default marina for salt water

Compound : Zinc Omadine (EPA)

Emission : Default Ma rina 100% Zn

- Omadine

Load : 9.62E+02:g/d

Results

Total concentration in water

Maximum concentration : 6.39E

- 01 :ug/l

95 % concentration : 6.15E

- 01 :ug/l

Average concentration : 4.21E

- 01 :ug/l

Median concentration : 4.17E

- 01 :ug/l

Minimum concentrat ion : 8.88E

- 02 :ug/l

Dissolved concentration in water

Maximum concentration : 6.37E

- 01 :ug/l

95 % concentration : 6.13E

- 01 :ug/l

Average concentration : 4.19E

- 01 :ug/l

Median concentration : 4.16E

- 01 :ug/l

Minimum concentration : 8.85E

- 02 :ug/l

Co ntaminant concentration on suspended solids

Maximum concentration : 4.57E

- 02 :ug/g dw

95 % concentration : 4.40E

- 02 :ug/g dw

Average concentration : 3.01E

- 02 :ug/g dw

Median concentration : 2.99E

- 02 :ug/g dw

Minimum concentration : 6.35E

- 03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 9.58E

- 07 :ug/g dw

95 % concentration : 9.23E

- 07 :ug/g dw

Average concentration : 6.31E

- 07 :ug/g dw

Median concentration : 6.26E

- 07 :ug/g dw

Minimum concentration : 1.33 E

- 07 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 9.58E

- 07 :ug/g dw

95 % concentration : 9.23E

- 07 :ug/g dw

Average concentration : 6.31E

- 07 :ug/g dw

Median concentration : 6.26E

- 07 :ug/g dw

Minimum conc entration : 1.33E

- 07 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 9.58E

- 07 :ug/g dw

95 % concentration : 9.23E

- 07 :ug/g dw

Average concentration : 6.31E

- 07 :ug/g dw

Median concentration : 6.26E

- 07 :ug/ g dw

### 69

Minimum concentration : 1.33E

- 07 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 9.58E

- 07 :ug/g dw

95 % concentration : 9.23E

- 07 :ug/g dw

Average concentration : 6.31E

- 07 :ug/g dw

Median concentration : 6.26E

- 07 :ug/g dw

Minimum concentration : 1.33E

- 07 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 3.70E

- 02 :ug/l

95 % concentration : 3.29E

- 02 :ug/l

Average concentration : 2.05E

- 03 :ug/l

Median conce ntration : 1.70E

- 02 :ug/l

Minimum concentration : 1.45E

- 02 :ug/l

Dissolved concentration in water

Maximum concentration : 3.73E

- 02 :ug/l

95 % concentration : 3.28E

- 02 :ug/l

Average concentration : 2.05E

- 03 :ug/l

Median concentration : 1.70E

- 02 :ug/ l

Minimum concentration : 1.44E

- 02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 2.68E

- 03 :ug/g dw

95 % concentration : 2.36E

- 03 :ug/g dw

Average concentration : 1.47E

- 04 :ug/g dw

Median concentration : 1.22E

- 03 :ug/g d w

Minimum concentration : 1.04E

- 03 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 5.62E

- 08 :ug/g dw

95 % concentration : 4.94E

- 08 :ug/g dw

Average concentration : 3.08E

- 09 :ug/g dw

Median concentration : 2. 56E

- 08 :ug/g dw

Minimum concentration : 2.17E

- 08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 5.62E

- 08 :ug/g dw

95 % concentration : 4.94E

- 08 :ug/g dw

Average concentration : 3.08E

- 09 :ug/g dw

Median co ncentration : 2.56E

- 08 :ug/g dw

Minimum concentration : 2.17E

- 08 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 5.62E

- 08 :ug/g dw

95 % concentration : 4.94E

- 08 :ug/g dw

### 70

Average concentration : 3.08E

- 09 :u g/g dw

Median concentration : 2.56E

- 08 :ug/g dw

Minimum concentration : 2.17E

- 08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 5.62E

- 08 :ug/g dw

95 % concentration : 4.94E

- 08 :ug/g dw

Average concentrati on : 3.08E

- 09 :ug/g dw

Median concentration : 2.56E

- 08 :ug/g dw

Minimum concentration : 2.17E

- 08 :ug/g dw



### MAMPEC

- Input data sheet

Compound

Name : Zinc

- pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapo r pressure : 1.00E

- 06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol

- water coefficient : 9.00E

- 01 :(

- ) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(

- ) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E

- 05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(

- )

in water

Biological degradation rate : 1.76E

- 01 :1/d

Hydrolytic degradation rate : 3.82E

- 02 :1/d

Photolytic degradation rate : 9.20E

- 01 :1/d

in sediment

Biological deg radation rate : 6.30E

- 01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference :

Environment

Description : Default marina for salt water

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 3.40E+01 :s.e.

Depth well

- mixed sediment top layer : 1.00E

- 01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E

- 02 :

- /

- Nett sedimentation velocity : 5.00E

- 01 :m/d

pH : 8.0 :(

- )

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0. 00E+00 :ug/l

Average windspeed : 0.00 :m/s

### 71

Fraction wind perpendicular to harbour : 0.00 :

- /

- Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 400 :m

Width of harbor (y1) : 400 :m

Length of harb or (x2) : 400 :m

Width of river (y2) : 400 :m

Depth of harbor : 3.5 :m

Length of open harbour mouth (x3) : 100 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1 :m

Density difference : 0.1 :kg/m3

Density di fference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 350 :m2

Depth at harbour mouth : 3.5 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 243420 :m3

Reference :

Emission

Description : Default Marina 100% Zn

- Omadine

Load : 962.0325 :g/d

Loading due to moving ships : 0 :g/d

Load ing due to ships at berth : 962.0325 :g/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 299

Number of ships at berth (Class 3) : 0

Number of ships at berth (Class 4) : 0

Number of ships at berth (Class 5) : 0

Number of ships at berth (Class 6) : 0

Number of ships at berth (Class 7) : 0

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of shi ps at berth (Class 10) : 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 0

Number of moving ships (Class 4) : 0

Number of moving ships (Class 5) : 0

Number of moving ships (Class 6) : 0

Number of moving ships (Class 7) : 0

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10) : 0

Application factor (Class 1) : 100 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

### 72

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 20 :%

Application factor (Class 7) : 20 :%

Application factor (Class 8) : 20 :%

Application factor (Class 9) : 20 :%

Application factor (Cla ss 10) : 20 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 22.5 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0

- 10 :m

Ship Length (Class 2) : 10

- 50 :m

Ship Length (Class 3) : 50

- 100 :m

Ship Length (Class 4) : 100

- 150 :m

Ship Length (Class 5) : 150

- 200 :m

Ship Length (Class 6) : 200

- 250 :m

Ship Length (Class 7) : 250

- 300 :m

Ship Length (Class 8) : 300

- 350 :m

Ship Length (Class 9) : 3 50

- 400 :m

Ship Length (Class 10) : > 400 :m

Reference : Coastal Martina

- LR=14.3

### 73 Appendix D

Inputs, parameters and out put results from the MAMPEC Model run for Scenario 4

MAM PEC

- Result Sheet

Run : Scenario 4

- Coastal Harbor

- LR

- 4.5

Version : MamPec 2.0

Run date : 3/16/2009 12:54:42 PM

Memo : Coastal Harbor

- LR=4.5

### 74

Input

Environment : Default estuarine harbour 1

Compound : Zinc Omadine (EPA)

Emission : Default Estuarine Ha rbour

- 5

Load : 4.35E+03:g/d

Results

Total concentration in water

Maximum concentration : 4.93E

- 02 :ug/l

95 % concentration : 4.54E

- 02 :ug/l

Average concentration : 2.41E

- 02 :ug/l

Median concentration : 1.83E

- 02 :ug/l

Minimum concentration : 3.48E

- 0 3 :ug/l

Dissolved concentration in water

Maximum concentration : 4.92E

- 02 :ug/l

95 % concentration : 4.52E

- 02 :ug/l

Average concentration : 2.40E

- 02 :ug/l

Median concentration : 1.82E

- 02 :ug/l

Minimum concentration : 3.47E

- 03 :ug/l

Contaminant con centration on suspended solids

Maximum concentration : 3.53E

- 03 :ug/g dw

95 % concentration : 3.24E

- 03 :ug/g dw

Average concentration : 1.72E

- 03 :ug/g dw

Median concentration : 1.31E

- 03 :ug/g dw

Minimum concentration : 2.49E

- 04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 7.40E

- 08 :ug/g dw

95 % concentration : 6.81E

- 08 :ug/g dw

Average concentration : 3.62E

- 08 :ug/g dw

Median concentration : 2.74E

- 08 :ug/g dw

Minimum concentration : 5.22E

- 09 :ug/g d w

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 7.40E

- 08 :ug/g dw

95 % concentration : 6.81E

- 08 :ug/g dw

Average concentration : 3.62E

- 08 :ug/g dw

Median concentration : 2.74E

- 08 :ug/g dw

Minimum concentration : 5 .22E

- 09 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 7.40E

- 08 :ug/g dw

95 % concentration : 6.81E

- 08 :ug/g dw

Average concentration : 3.62E

- 08 :ug/g dw

Median concentration : 2.74E

- 08 :ug/g dw

Minimum concentration : 5.22E

- 09 :ug/g dw

### 75

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 7.40E

- 08 :ug/g dw

95 % concentration : 6.81E

- 08 :ug/g dw

Average concentration : 3.62E

- 08 :ug/g dw

Median concentration : 2.74E

- 08 :ug/g dw

Minimum concentration : 5.22E

- 09 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 8.00E

- 03 :ug/l

95 % concentration : 6.65E

- 03 :ug/l

Average concentration : 1.62E

- 03 :ug/l

Median concentration : 3. 40E

- 03 :ug/l

Minimum concentration : 1.83E

- 03 :ug/l

Dissolved concentration in water

Maximum concentration : 7.81E

- 03 :ug/l

95 % concentration : 6.63E

- 03 :ug/l

Average concentration : 1.62E

- 03 :ug/l

Median concentration : 3.39E

- 03 :ug/l

Minimum con centration : 1.83E

- 03 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 5.61E

- 04 :ug/g dw

95 % concentration : 4.76E

- 04 :ug/g dw

Average concentration : 1.16E

- 04 :ug/g dw

Median concentration : 2.43E

- 04 :ug/g dw

Minimum con centration : 1.31E

- 04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 1.18E

- 08 :ug/g dw

95 % concentration : 9.97E

- 09 :ug/g dw

Average concentration : 2.44E

- 09 :ug/g dw

Median concentration : 5.10E

- 09 :ug/g dw

Minimum concentration : 2.75E

- 09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 1.18E

- 08 :ug/g dw

95 % concentration : 9.97E

- 09 :ug/g dw

Average concentration : 2.44E

- 09 :ug/g dw

Median concentration : 5.10E

- 09 :ug/g dw

Minimum concentration : 2.75E

- 09 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 1.18E

- 08 :ug/g dw

95 % concentration : 9.97E

- 09 :ug/g dw

Average concentration : 2.44E

- 09 :ug/g dw

### 76

Median concentration : 5.10E

- 09 :ug/g dw

Minimum concentration : 2.75E

- 09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 1.18E

- 08 :ug/g dw

95 % concentration : 9.97E

- 09 :ug/g dw

Average concentration : 2.44E

- 09 :ug/g dw

Median concentration : 5.10E

- 09 :ug/g dw

Minimum concentration : 2.75E

- 09 :ug/g dw



### MAMPEC

- Input data sheet

Compound

Name : Zinc

- pyrithione

Description : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E

- 06 :Pa

Solubility : 6.30E+00 :g/m3

Octanol

- water coefficient : 9.00E

- 01 :(

- ) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(

- ) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E

- 05 :Pa.m3/mo l

Melting temperature : 267.0 :oC

pKa : 0.0 :(

- )

in water

Biological degradation rate : 1.76E

- 01 :1/d

Hydrolytic degradation rate : 3.82E

- 02 :1/d

Photolytic degradation rate : 9.20E

- 01 :1/d

in sediment

Biological degradation rate : 6.30E

- 01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Reference :

Environment

Description : Default estuarine harbour 1

Silt conc entration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 3.40E+01 :s.e.

Depth well

- mixed sediment top layer : 2.00E

- 01 : m

Sediment densit y : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E

- 02 :

- /

- Nett sedimentation velocity : 1.00E+00 :m/d

pH : 7.5 :(

- )

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Av erage windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :

- /

-

### 77

Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harbor (x1) : 1000 :m

Width of harbor (y1) : 1000 :m

Length of harbor (x2) : 5 000 :m

Width of river (y2) : 500 :m

Depth of harbor : 15 :m

Length of open harbour mouth (x3) : 2500 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1.5 :m

Density difference : 0.4 :kg/m3

Density difference f

lushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 37500 :m2

Depth at harbour mouth : 15 :m

Height underwater dam at mouth : 0 :m

Width underwater dam at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

Flow : 0 :m/s

Exchange volume in 1 tidal period : 60262000 :m3

Reference :

Emission

Description : Default Estuarine Harbour

- 5

Load : 4351.5945 :g/d

Loading due to moving ships : 310.8195 :g/d

Load ing due to ships at berth : 4040.775 :g/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Leaching rate ships at berth : 4.5 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 0

Number of ships at berth (Class 3) : 11

Number of ships at berth (Class 4) : 5

Number of ships at berth (Class 5) : 5

Number of ships at berth (Class 6) : 1

Number of ships at berth (Class 7) : 2

Number of ships at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10) : 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 1.8

Number of moving ships (Class 4) : 0.4

Number of moving ships (Class 5) : 0.4

Number of moving ships (Class 6) : 0.1

Nu mber of moving ships (Class 7) : 0.1

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10) : 0

Application factor (Class 1) : 0 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

### 78

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 100 :%

Application factor (Class 7) : 100 :%

Application factor (Class 8) : 100 :%

Application factor (Class 9) : 100 :%

Application fa ctor (Class 10) : 100 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 120 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship are a (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0

- 10 :m

Ship Length (Class 2 ) : 10

- 50 :m

Ship Length (Class 3) : 50

- 100 :m

Ship Length (Class 4) : 100

- 150 :m

Ship Length (Class 5) : 150

- 200 :m

Ship Length (Class 6) : 200

- 250 :m

Ship Length (Class 7) : 250

- 300 :m

Ship Length (Class 8) : 300

- 350 :m

Ship Length (Class 9) : 350

- 400 :m

Ship Length (Class 10) : > 400 :m

Reference :



### MAMPEC

- Result Sheet

Run : Scenario 4

- Coastal Harbor

- LR

- 14.3

Version : MamPec 2.0

Run date : 3/16/2009 12:51:59 PM

Memo : Coastal Harbor

- LR=14.3

Input

Environment : Default estuarine harbour 1

Compound : Zinc Omadine (EPA)

Emission : Default Estuarine Harbour

- 4

Load : 1.38E+04:g/d

Results

Total concentration in water

Maximum concentration : 1.57E

- 01 :ug/l

95 % concentration : 1.44E

- 01 :ug/l

Average concentration : 7.66E

- 02 :ug/l

Median concentration : 5.80E

- 02 :ug/l

Minimum concentration : 1.11E

- 02 :ug/l

Dissolved concentration in water

Maximum concentration : 1.56E

- 01 :ug/l

95 % concentration : 1.44E

- 01 :ug/l

### 79

Average concentration : 7.63E

- 02 :ug/l

Median concent ration : 5.79E

- 02 :ug/l

Minimum concentration : 1.10E

- 02 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 1.12E

- 02 :ug/g dw

95 % concentration : 1.03E

- 02 :ug/g dw

Average concentration : 5.48E

- 03 :ug/g dw

Median concentrat ion : 4.15E

- 03 :ug/g dw

Minimum concentration : 7.91E

- 04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 2.35E

- 07 :ug/g dw

95 % concentration : 2.16E

- 07 :ug/g dw

Average concentration : 1.15E

- 07 :ug/g dw

Me dian concentration : 8.71E

- 08 :ug/g dw

Minimum concentration : 1.66E

- 08 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 2.35E

- 07 :ug/g dw

95 % concentration : 2.16E

- 07 :ug/g dw

Average concentration : 1.15E

- 07 :ug/g dw

Median concentration : 8.71E

- 08 :ug/g dw

Minimum concentration : 1.66E

- 08 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 2.35E

- 07 :ug/g dw

95 % concentration : 2.16E

- 07 :ug/g dw

Average conce ntration : 1.15E

- 07 :ug/g dw

Median concentration : 8.71E

- 08 :ug/g dw

Minimum concentration : 1.66E

- 08 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 2.35E

- 07 :ug/g dw

95 % concentration : 2.16E

- 07 :ug/g dw

Average concentration : 1.15E

- 07 :ug/g dw

Median concentration : 8.71E

- 08 :ug/g dw

Minimum concentration : 1.66E

- 08 :ug/g dw

Results in surrounding waters

Total concentration in water

Maximum concentration : 2.50E

- 02 :ug/l

95 % concentration : 2 .11E

- 02 :ug/l

Average concentration : 5.16E

- 03 :ug/l

Median concentration : 1.08E

- 02 :ug/l

Minimum concentration : 5.83E

- 03 :ug/l

Dissolved concentration in water

### 80

Maximum concentration : 2.48E

- 02 :ug/l

95 % concentration : 2.11E

- 02 :ug/l

Average co ncentration : 5.14E

- 03 :ug/l

Median concentration : 1.08E

- 02 :ug/l

Minimum concentration : 5.81E

- 03 :ug/l

Contaminant concentration on suspended solids

Maximum concentration : 1.78E

- 03 :ug/g dw

95 % concentration : 1.51E

- 03 :ug/g dw

Average concentr ation : 3.69E

- 04 :ug/g dw

Median concentration : 7.72E

- 04 :ug/g dw

Minimum concentration : 4.17E

- 04 :ug/g dw

Contaminant concentration in sediment after 1 year of use

Maximum concentration : 3.74E

- 08 :ug/g dw

95 % concentration : 3.17E

- 08 :ug/g dw

A verage concentration : 7.74E

- 09 :ug/g dw

Median concentration : 1.62E

- 08 :ug/g dw

Minimum concentration : 8.74E

- 09 :ug/g dw

Contaminant concentration in sediment after 2 years of use

Maximum concentration : 3.74E

- 08 :ug/g dw

95 % concentration : 3.17 E

- 08 :ug/g dw

Average concentration : 7.74E

- 09 :ug/g dw

Median concentration : 1.62E

- 08 :ug/g dw

Minimum concentration : 8.74E

- 09 :ug/g dw

Contaminant concentration in sediment after 5 years of use

Maximum concentration : 3.74E

- 08 :ug/g dw

95 % conc entration : 3.17E

- 08 :ug/g dw

Average concentration : 7.74E

- 09 :ug/g dw

Median concentration : 1.62E

- 08 :ug/g dw

Minimum concentration : 8.74E

- 09 :ug/g dw

Contaminant concentration in sediment after 10 years of use

Maximum concentration : 3.74E

- 08 : ug/g dw

95 % concentration : 3.17E

- 08 :ug/g dw

Average concentration : 7.74E

- 09 :ug/g dw

Median concentration : 1.62E

- 08 :ug/g dw

Minimum concentration : 8.74E

- 09 :ug/g dw



### MAMPEC

- Input data sheet

Compound

Name : Zinc

- pyrithione

Descriptio n : Zinc Omadine (EPA)

Molecular mass : 317.7 :g/Mol

Vapor pressure : 1.00E

- 06 :Pa

### 81

Solubility : 6.30E+00 :g/m3

Octanol

- water coefficient : 9.00E

- 01 :(

- ) Log (Kow)

Kd : 0.00E+00 :m3/kg

Koc : 3.40E+00 :(

- ) Log(Koc), Koc expressed as l/kg OrganicCarbon

Henry's coefficient : 6.60E

- 05 :Pa.m3/mol

Melting temperature : 267.0 :oC

pKa : 0.0 :(

- )

in water

Biological degradation rate : 1.76E

- 01 :1/d

Hydrolytic degradation rate : 3.82E

- 02 :1/d

Photol ytic degradation rate : 9.20E

- 01 :1/d

in sediment

Biological degradation rate : 6.30E

- 01 :1/d

Hydrolytic degradation rate : 8.13E+00 :1/d

Photolytic degradation rate : 0.00E+00 :1/d

Advanced Photodegradation calculation : False

Refere nce :

Environment

Description : Default estuarine harbour 1

Silt concentration : 35.0 :g/m3

Particular organic carbon conc : 1.0 :g Organic Carbon/m3

Dissolved organic carbon conc : 2.0 :g/m3

Temperature : 25.0 :oC

Salinity : 3 .40E+01 :s.e.

Depth well

- mixed sediment top layer : 2.00E

- 01 : m

Sediment density : 1.000E+03 :kg/m3

Fraction organic carbon in sediment : 3.00E

- 02 :

- /

- Nett sedimentation velocity : 1.00E+00 :m/d

pH : 7.5 :(

- )

Chlorophyll : 3.00 :ug/l

Latitude : 50.00 degrees NH

Background concentrations : 0.00E+00 :ug/l

Average windspeed : 0.00 :m/s

Fraction wind perpendicular to harbour : 0.00 :

- /

- Daily maximum non tidal water level change : 0.00 :m

Length of river, not part of harb or (x1) : 1000 :m

Width of harbor (y1) : 1000 :m

Length of harbor (x2) : 5000 :m

Width of river (y2) : 500 :m

Depth of harbor : 15 :m

Length of open harbour mouth (x3) : 2500 :m

Flow : 1 :m/s

Flow of flushing into harbor : 0 :m3/s

Tidal height : 1.5 :m

Density difference : 0.4 :kg/m3

Density difference flushing : 0 :kg/m3

Tidal period : 12.41 :h

Exchange surface : 37500 :m2

Depth at harbour mouth : 15 :m

Height underwater dam at mouth : 0 :m

Width underwater d am at mouth : 0 :m

Length selected area : 0 :m

Width selected area : 0 :m

Depth selected area : 0 :m

### 82

Flow : 0 :m/s

Exchange volume in 1 tidal period : 60262000 :m3

Reference :

Emission

Description : Default Estuarine Harbo ur

- 4

Load : 13828.4003 :g/d

Loading due to moving ships : 987.7153 :g/d

Loading due to ships at berth : 12840.685 :g/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Leaching rate ships at berth : 14.3 :ug/cm2/d

Number of ships at berth (Class 1) : 0

Number of ships at berth (Class 2) : 0

Number of ships at berth (Class 3) : 11

Number of ships at berth (Class 4) : 5

Number of ships at berth (Class 5) : 5

Number of ships at berth (Class 6) : 1

Number of ships at berth (Class 7) : 2

Number of s hips at berth (Class 8) : 0

Number of ships at berth (Class 9 : 0

Number of ships at berth (Class 10) : 0

Number of moving ships (Class 1) : 0

Number of moving ships (Class 2) : 0

Number of moving ships (Class 3) : 1.8

Number of moving ships (Class 4) : 0.4

Number of moving ships (Class 5) : 0.4

Number of moving ships (Class 6) : 0.1

Number of moving ships (Class 7) : 0.1

Number of moving ships (Class 8) : 0

Number of moving ships (Class 9) : 0

Number of moving ships (Class 10) : 0

Application factor (Cl ass 1) : 0 :%

Application factor (Class 2) : 100 :%

Application factor (Class 3) : 100 :%

Application factor (Class 4) : 100 :%

Application factor (Class 5) : 100 :%

Application factor (Class 6) : 100 :%

Application factor (Class 7) : 100 :%

Applica tion factor (Class 8) : 100 :%

Application factor (Class 9) : 100 :%

Application factor (Class 10) : 100 :%

Underwater ship area (Class 1) : 20 :m2

Underwater ship area (Class 2) : 120 :m2

Underwater ship area (Class 3) : 450 :m2

Underwater ship area (Class 4) : 3061 :m2

Underwater ship area (Class 5) : 5999 :m2

Underwater ship area (Class 6) : 9917 :m2

Underwater ship area (Class 7) : 14814 :m2

Underwater ship area (Class 8) : 22645 :m2

Underwater ship area (Class 9) : 27547 :m2

Underwater ship area (Class 10) : 39668 :m2

Ship Length (Class 1) : 0

- 10 :m

Ship Length (Class 2) : 10

- 50 :m

Ship Length (Class 3) : 50

- 100 :m

Ship Length (Class 4) : 100

- 150 :m

### 83

Ship Length (Class 5) : 150

- 200 :m

Ship Length (Class 6) : 200

- 250 :m

Ship Le ngth (Class 7) : 250

- 300 :m

Ship Length (Class 8) : 300

- 350 :m

Ship Length (Class 9) : 350

- 400 :m

Ship Length (Class 10) : > 400 :m

Reference :



### Sign

- off Date : 03/25/09

DP Barcode No. : D362199