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Potential Effects of Contaminants on Fraser River Sockeye Salmon

Potential Effects of Contaminants on Fraser River Sockeye Salmon

Potential Effects of Contaminants on Fraser River Sockeye Salmon

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Table 5.1. Selected toxicity reference values (TRV) for evaluating the potential effects <strong>on</strong> sockeye salm<strong>on</strong> associated with exposure to c<strong>on</strong>taminants <str<strong>on</strong>g>of</str<strong>on</strong>g>c<strong>on</strong>cern in surface water.C<strong>on</strong>taminant <str<strong>on</strong>g>of</str<strong>on</strong>g> C<strong>on</strong>cernSelectedTRVUnitsHardness Range(mg/L <str<strong>on</strong>g>of</str<strong>on</strong>g> CaCO3)Descripti<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> Procedure for Deriving the Toxicity ReferenceValue (TRV)ReferenceMetals (c<strong>on</strong>tinued)Silver, total 0.1 µg/L All No basis for revising the TSV; MATC for sainbow trout similar toTSV.CCME (1999)PhenolsPhenols 7 µg/L All The 27-d LC50 for rainbow trout was divided by ten to derive theTRV.CCME (1999)d = day; h = hour; EC 25 = effective c<strong>on</strong>centrati<strong>on</strong> affecting 50% <str<strong>on</strong>g>of</str<strong>on</strong>g> the populati<strong>on</strong>; LC 50 = lethal c<strong>on</strong>centrati<strong>on</strong> affecti<strong>on</strong> 50% <str<strong>on</strong>g>of</str<strong>on</strong>g> the populati<strong>on</strong>;TRV = toxicity reference value; FCV = final chr<strong>on</strong>ic value; Cr(VI) = chromium six; MATC = maximum acceptable toxicant c<strong>on</strong>centrati<strong>on</strong>.1 Cadmium TRV = e (0.74099*ln(hardness) - 2.6299) ; Coho Salm<strong>on</strong> ln(intercept) = -2.6299.T-212

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