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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 4.19. Evaluati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> potential hazards in surface water posed to sockeye salm<strong>on</strong> exposed to c<strong>on</strong>taminants within the Lower <strong>Fraser</strong> <strong>River</strong> Area<str<strong>on</strong>g>of</str<strong>on</strong>g> Interest (hazard quotients >1.0 were used to identify c<strong>on</strong>taminants that pose potential hazards to sockeye salm<strong>on</strong>).Chemical <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>Potential</str<strong>on</strong>g> C<strong>on</strong>cernMaximum Hazard QuotientSpawning & Incubati<strong>on</strong>Juvenile Rearing Smolt Outmigrati<strong>on</strong> Adult Upstream Migrati<strong>on</strong>Pre-1990 Post-1990 Pre-1990 Post-1990 Pre-1990 Post-1990 Pre-1990 Post-1990Metals (c<strong>on</strong>tinued)Lead, total ND ND ND ND 8 7 8 6.01Manganese, total ND ND ND ND 0.425 0.376 0.231 0.41Mercury, total ND ND ND ND 4000 4000 2000 1000Molybdenum, total ND ND ND ND 0.0685 0.0137 0.411 0.0274Nickel, total ND ND ND ND 0.428 0.856 0.516 1.32Selenium, total ND ND ND ND 0.6 0.4 0.2 0.4Silver, total ND ND ND ND ND 22 ND 7ChlorophenolsDichlorophenol ND ND ND ND ND 0.0125 ND 0.0125M<strong>on</strong>ochlorophenol ND ND ND ND ND 0.00357 ND 0.00357Pentachlorophenol ND ND ND ND ND 0.05 ND 0.05Tetrachlorophenol ND ND ND ND ND 0.025 ND 0.025Trichlorophenol ND ND ND ND ND 0.00139 ND 0.00139ND = no data; TSS = total suspended solids.Only chemicals <str<strong>on</strong>g>of</str<strong>on</strong>g> potential c<strong>on</strong>cern for which usable data were available in an area <str<strong>on</strong>g>of</str<strong>on</strong>g> interest were reported.Bolded values indicate hazard quotients >1.0.Pre-1990 includes 1990.1 For pH, a reported maximum hazard quotient <str<strong>on</strong>g>of</str<strong>on</strong>g> zero indicates that no measurements were outside the TSV range (i.e., all pH measurements were between 6.5 and 9.0).T-146

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