Interim report of the HELCOM CORESET project
Interim report of the HELCOM CORESET project
Interim report of the HELCOM CORESET project
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GES boundaries and matrix<br />
Existing quantitative targets e.g. EACs, BACs and food safety standards<br />
Table 3.14. Existing quantitative targets for TBT.<br />
Source<br />
OSPAR<br />
Value and description<br />
EAC sediment 0.01 ug TBT/kg DW<br />
EAC water 0.1 ng TBT/L<br />
EAC mussel 12 ug TBT/kg DW<br />
BAC/BC sediment Zero for man-made compound<br />
BAC/BC water Zero for man-made compound<br />
BAC/BC mussel Zero for man-made compound<br />
LC/BC mussel<br />
EC<br />
1 ug TBT/kg DW<br />
EQS water<br />
Draft EQS water<br />
Draft EQS biota<br />
0.2 ng TBT/L (AA) 1.5 ng TBT/L (MAC)<br />
Un<strong>of</strong>fi cial EQS sediment 0.02 ug TBT/kg DW<br />
Un<strong>of</strong>fi cial EQS biota 230 ug TBT/kg WW (predators second poisoning)<br />
Food stuff directive<br />
Effect Range -Low<br />
ERL sediment<br />
O<strong>the</strong>r<br />
15.2 ug TBT/kg WW for seafood<br />
PNEC AA 0.2 ng/L; MAC 1.5 ng/L TBT / 1.0 ng/L TPhT<br />
WHO (uptake by food) 0.25 ug per kilo <strong>of</strong> human weight per day<br />
Recommended GES boundaries Water: 0.2 ng/L<br />
Sediment: 0.02 ug/kg<br />
Biota: 12 ug/kg DW (for mussels)<br />
Seafood: 15.2 ug/kg WW for seafood<br />
Preferred matrix<br />
Water – Optional. (low solubility in water, high level <strong>of</strong> attachment to particles)<br />
Sediments – Optional. (Could be a co-factor in decreasing biodiversity in areas with low biodiversity)<br />
Biota (mussels or gastropoda snails): Preferred. (mussels are sensitive to TBT). Fish (liver) can be used as<br />
alternative if molluscs are not present.
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