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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 4.32. Frequency <str<strong>on</strong>g>of</str<strong>on</strong>g> exceedance <str<strong>on</strong>g>of</str<strong>on</strong>g> the selected toxicity screening values for surface water in the Lower <strong>Fraser</strong> <strong>River</strong> Area <str<strong>on</strong>g>of</str<strong>on</strong>g> Interest.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>cernFrequency <str<strong>on</strong>g>of</str<strong>on</strong>g> Exceedance <str<strong>on</strong>g>of</str<strong>on</strong>g> Toxicity Screening Values (total number <str<strong>on</strong>g>of</str<strong>on</strong>g> samples)Spawning & 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 ND ND ND ND 0% (33) 1% (92) 12% (110) 2% (222)Residue N<strong>on</strong>-filterable (TSS) ND ND ND ND 94% (35) 100% (7) 75% (69) 100% (19)Turbidity ND ND ND ND 100% (34) 98% (86) 97% (60) 97% (174)NutrientsAmm<strong>on</strong>ia, dissolved ND ND ND ND 0% (2) 0% (1) 0% (11) 0% (24)Nitrate (NO 3 ), dissolved ND ND ND ND ND 0% (34) ND 0% (63)Nitrogen-Nitrite, dissolved (NO 2 ) ND ND ND ND 0% (2) 0% (34) 0% (10) 0% (73)Phosphorus, total (stream) ND ND ND ND 100% (27) 95% (64) 100% (53) 97% (144)Major I<strong>on</strong>sChloride, dissolved ND ND ND ND 0% (35) 0% (86) 0% (63) 0% (176)Fluoride, total ND ND ND ND ND 0% (23) ND 0% (45)Sulfate, dissolved ND ND ND ND 0% (34) 0% (35) 0% (61) 0% (73)MetalsAluminum, total ND ND ND ND 100% (3) 99% (72) 100% (9) 94% (161)Arsenic, total ND ND ND ND 0% (16) 0% (44) 0% (43) 0% (93)Bor<strong>on</strong>, total ND ND ND ND ND 0% (20) ND 0% (53)Cadmium, total ND ND ND ND 100% (5) 99% (71) 100% (8) 98% (148)Chromium, total ND ND ND ND 80% (5) 99% (71) 100% (17) 88% (162)Cobalt, total ND ND ND ND ND 15% (71) ND 5% (165)Copper, total ND ND ND ND 100% (16) 100% (64) 86% (43) 87% (137)Ir<strong>on</strong>, total ND ND ND ND 100% (17) 99% (71) 98% (58) 95% (165)Lead, total ND ND ND ND 81% (16) 80% (64) 49% (43) 58% (137)Manganese, total ND ND ND ND 0% (16) 0% (64) 0% (43) 0% (137)T-168

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