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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 4.44. 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 reference area within the <strong>Fraser</strong> <strong>River</strong> Basin.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% (13) 0% (79) 0% (28) 0% (165)Residue N<strong>on</strong>-filterable (TSS) ND ND ND ND 0% (6) 0% (25) 0% (20) 0% (56)Turbidity ND ND ND ND 12% (17) 25% (79) 55% (38) 54% (165)NutrientsNitrate (NO 3 ), dissolved ND ND ND ND ND 0% (28) ND 0% (57)Nitrogen-Nitrite, dissolved (NO 2 ) ND ND ND ND ND 0% (28) ND 0% (57)Phosphorus, total (stream) ND ND ND ND 18% (17) 18% (33) 42% (38) 40% (73)Major I<strong>on</strong>sBolded values indicate hazard quotien ND ND ND ND 0% (17) 0% (79) 0% (38) 0% (165)Fluoride, total ND ND ND ND ND 0% (13) ND 0% (34)Sulfate, dissolved ND ND ND ND 0% (17) 0% (48) 0% (38) 0% (104)MetalsAluminum, total ND ND ND ND 0% (1) 38% (60) 100% (1) 84% (132)Arsenic, total ND ND ND ND 0% (17) 0% (37) 0% (37) 0% (82)Bor<strong>on</strong>, total ND ND ND ND ND 0% (18) ND 0% (37)Cadmium, total ND ND ND ND 100% (3) 31% (26) 100% (5) 48% (71)Chromium, total ND ND ND ND 60% (5) 11% (62) 67% (9) 8% (137)Cobalt, total ND ND ND ND 0% (5) 0% (62) 0% (9) 0% (137)Copper, total ND ND ND ND 59% (17) 7% (58) 59% (37) 3% (129)Ir<strong>on</strong>, total ND ND ND ND 6% (17) 0% (62) 16% (37) 6% (137)Lead, total ND ND ND ND 6% (17) 0% (58) 16% (37) 0% (129)Manganese, total ND ND ND ND 0% (17) 0% (58) 0% (37) 0% (129)Mercury, total ND ND ND ND 100% (4) 100% (8) 100% (11) 100% (17)Molybdenum, total ND ND ND ND 0% (5) 0% (62) 0% (9) 0% (137)T-189

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