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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 5.20. Hazard quotients for c<strong>on</strong>taminants <str<strong>on</strong>g>of</str<strong>on</strong>g> c<strong>on</strong>cern in Weaver and Adams sockeyeand Thomps<strong>on</strong> chinook salm<strong>on</strong> populati<strong>on</strong>s 1 .C<strong>on</strong>taminant <str<strong>on</strong>g>of</str<strong>on</strong>g>C<strong>on</strong>cernToxicityReferenceValue<strong>Fraser</strong> <strong>River</strong> Mouth Spawning GroundsMuscle Roe Muscle RoeMetals (mg/g)Mercury 0.4 mg/g 3 0.063 0.024 0.159 0.038Selenium 1.58 mg/g 4 0.095 1.52 0.487 1.01Chemical MixturesΣTEQ 2 3.0 pg/g lipid 5 NB 2.53 NB 1.48NB = No available benchmark; TEQ = toxic equivalent; PCB = polychlorinated biphenyl;PCDD = polychlorinated dibenzo-p- dioxin; PCDF = polychlorinated dibenz<str<strong>on</strong>g>of</str<strong>on</strong>g>uran;TCDD = tetraochlorodibenzo-p- dioxin.1 Data obtained from Siska Traditi<strong>on</strong>s Society 2009.2 ΣTEQ is calculated as the the sum <str<strong>on</strong>g>of</str<strong>on</strong>g> the PCB, PCDD, and PCDF TCDD-TEQ values.3 Toxicity reference value obtained from Dill<strong>on</strong> et al. (2010)4 Toxicity reference value obtained from USEPA (2010b); assuming 80% tissue moisture c<strong>on</strong>tent.5 Toxicity reference value obtained from DeBruyn et al. (2004) and Giesy et al. (2002.)Bolded values indicate hazard quotients > 1.0.T-240

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