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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 4.25. 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 North Thomps<strong>on</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-1990C<strong>on</strong>venti<strong>on</strong>alspH 1 ND 0 ND ND 0 0 1.07 0Residue N<strong>on</strong>-filterable (TSS) ND 0.68 ND ND 4.04 4.16 2.48 2.56Turbidity ND 2.45 ND ND 7.5 8.5 6 11NutrientsAmm<strong>on</strong>ia, dissolved ND ND ND ND 0.258 0.00584 0.0954 0.00983Nitrate (NO 3 ), dissolved ND ND ND ND ND 0.0252 0.0276 0.0214Nitrogen-Nitrite, dissolved (NO 2 ) ND ND ND ND 0.0417 0.1 0.0417 0.1Phosphorus, total (stream) ND 5.6 ND ND 17.8 19 14.4 14.2Major I<strong>on</strong>sChloride, dissolved ND 0.00957 ND ND 0.00522 0.0109 0.0135 0.0174Fluoride, total ND ND ND ND 0.85 0.35 0.9 0.35Sulfate, dissolved ND 0.185 ND ND 0.078 0.131 0.098 0.33MetalsAluminum, total ND ND ND ND 17.7 15.4 17.7 14.3Arsenic, total ND ND ND ND 0.02 ND 0.5 NDBor<strong>on</strong>, total ND ND ND ND ND 0.0667 ND 0.0167Cadmium, total ND ND ND ND ND 412 588 294Chromium, total ND ND ND ND ND 12 20 15Cobalt, total ND ND ND ND ND 5.75 0.125 3.25Copper, total ND ND ND ND 0.25 4 0.5 10.5Ir<strong>on</strong>, total ND ND ND ND 7.63 8.77 7.63 5.37Lead, total ND ND ND ND 3 60 3 60Manganese, total ND ND ND ND 0.00665 0.0582 0.00669 0.0645T-155

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