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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 5.18. <strong>Fraser</strong> <strong>River</strong> Basin surface water hazard quotients calculated with a 95% percentileexposure point c<strong>on</strong>centrati<strong>on</strong> for each key habitat use, and maximum 95% hazardquotient for all habitat uses in the <strong>Fraser</strong> <strong>River</strong> Basin.C<strong>on</strong>taminant <str<strong>on</strong>g>of</str<strong>on</strong>g> C<strong>on</strong>cernSpawning &Incubati<strong>on</strong>JuvenileRearingSmoltOutmigrati<strong>on</strong>AdultUpstreamMigrati<strong>on</strong>MaximumHazardQuotientC<strong>on</strong>venti<strong>on</strong>als (mg/L)Residue: N<strong>on</strong>-filterable(TSS)NutrientsNitrogen - Nitrite,dissolved (NO 2 )3.22 0.478 9.56 5.03 9.5600.0833 0.0500 0.283 0.392 0.392Major I<strong>on</strong>sChloride, dissolved 0.00835 0.00253 0.00528 0.00916 0.00916Sulfate, dissolved 0.0957 0.0205 0.0340 0.0407 0.0957MetalsAluminum, total 19.4 12.1 57.1 38.2 57.1Arsenic, total 0.455 0.455 0.364 0.364 0.455Cadmium, total 0.00110 0.00372 0.00294 0.00292 0.00372Chromium, total 6.18 25.6 12.0 10.0 25.6Cobalt, total 0.0532 0.0638 0.111 0.0904 0.111Copper, total 1.69 0.536 3.80 2.95 3.80Ir<strong>on</strong>, total 8.96 3.16 31.6 17.7 31.6Lead, total 0.290 0.424 0.822 0.501 0.822Mercury, total 69.5 0.0904 57.7 57.7 69.5Nickel, total 0.222 0.400 0.691 0.447 0.691Selenium, total 0.900 0.500 0.300 0.250 0.900Silver, total 1.35 0.500 1.00 1.00 1.35OtherPhenols 0.571 0.479 0.986 1.02 1.02Bolded values indicate a hazard quotient > 1.0.T-238

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