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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)Copper, total (c<strong>on</strong>tinued) 5.5 µg/L > 60 to ≤ 120 mg/L Species mean acute value for sockeye salm<strong>on</strong> was divided by 10to derive the TRV.11.0 µg/L > 120 to ≤ 180 mg/L TRV for water hardness < 60 mg/L was multiplied by two toderive the TRV.16.5 µg/L > 180 mg/L TRV for water hardness < 60 mg/L was multiplied by three toderive the TRV.Ir<strong>on</strong>, total 300 µg/L All No basis for revising the TSV; Generic TSV based <strong>on</strong> salm<strong>on</strong>iddata.Lead, total 7.2 µg/L ≤ 60 mg/L The 19-m<strong>on</strong>th MATC for rainbow trout in s<str<strong>on</strong>g>of</str<strong>on</strong>g>t water was adoptedas the TRV.10.9 µg/L > 60 to ≤ 120 mg/L TRV interpolated from 19-m<strong>on</strong>th MATCs for rainbow trout in s<str<strong>on</strong>g>of</str<strong>on</strong>g>tand hard water.14.5 µg/L > 120 to ≤ 180 mg/L TRV interpolated from 19-m<strong>on</strong>th MATCs for rainbow trout in s<str<strong>on</strong>g>of</str<strong>on</strong>g>tand hard water.18.2 µg/L > 180 mg/L The 19-m<strong>on</strong>th MATC for rainbow trout in hard water wasadopted as the TRV.Mercury, total 0.52 µg/L All Chr<strong>on</strong>ic toxicity threshold for brook trout was adopted as theTRV.Nickel, total 25 µg/L ≤ 60 mg/L No basis for revising the TSV; Generic TSV based <strong>on</strong> salm<strong>on</strong>iddata.65 µg/L > 60 to ≤ 120 mg/L No basis for revising the TSV; Generic TSV based <strong>on</strong> salm<strong>on</strong>iddata.110 µg/L > 120 to ≤ 180 mg/L No basis for revising the TSV; Generic TSV based <strong>on</strong> salm<strong>on</strong>iddata.150 µg/L > 180 mg/L No basis for revising the TSV; Generic TSV based <strong>on</strong> salm<strong>on</strong>iddata.Selenium, total 1 µg/L All No basis for revising the TSV; Generic TSV based <strong>on</strong> salm<strong>on</strong>iddata.CCME (1999); USEPA(2007)CCME (1999)CCME (1999)CCME (1999)Davies et al. (1976)Davies et al. (1976)Davies et al. (1976)Davies et al. (1976)McKim et al. (1976)CCME (1999)CCME (1999)CCME (1999)CCME (1999)CCME (1999)T-211

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