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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 4.39. 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 South Thomps<strong>on</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 0% (871) 0% (1504) 0% (391) 0% (666) 0% (64) 0% (33) 1% (130) 0% (46)Residue N<strong>on</strong>-filterable (TSS) 16% (503) 17% (721) 3% (71) 0% (4) 0% (27) 9% (33) 0% (40) 4% (46)Turbidity 17% (313) 39% (1132) 2% (151) 6% (362) 66% (38) 67% (18) 25% (96) 48% (25)NutrientsAmm<strong>on</strong>ia, dissolved 0% (185) 0% (773) 0% (103) 0% (225) 0% (14) 0% (9) 0% (13) 0% (11)Nitrate (NO 3 ), dissolved 0% (89) 0% (246) 0% (47) 0% (134) 0% (5) 0% (14) 0% (18) 0% (22)Nitrogen-Nitrite, dissolved (NO 2 ) 0% (363) 0% (286) 0% (168) 0% (172) 2% (52) 0% (10) 0% (109) 0% (15)Phosphorus, total (lake) 49% (285) 67% (529) 46% (330) 68% (717) ND ND ND NDPhosphorus, total (stream) 74% (583) 92% (785) 46% (69) 0% (1) 98% (63) 85% (33) 88% (128) 78% (45)Major I<strong>on</strong>sChloride, dissolved 0% (450) 0% (833) 0% (178) 0% (626) 0% (37) 0% (33) 0% (68) 0% (46)Fluoride, total ND 2% (117) ND 0% (7) ND 0% (12) ND 0% (18)Sulfate, dissolved 0% (499) 0% (608) 0% (190) 0% (533) 0% (30) 0% (29) 0% (59) 0% (38)MetalsAluminum, total 48% (108) 62% (474) 19% (32) 0% (33) 100% (8) 80% (25) 71% (14) 57% (35)Arsenic, total 3% (76) 0% (266) 0% (1) 0% (9) ND ND 0% (2) NDBor<strong>on</strong>, total 0% (22) 0% (239) 0% (12) 0% (30) ND 0% (25) ND 0% (35)Cadmium, total 100% (44) 74% (318) 100% (7) 0% (9) ND 100% (2) ND 100% (2)Chromium, total 84% (43) 24% (434) 100% (3) 10% (10) ND 100% (6) 100% (3) 100% (4)Cobalt, total 6% (31) 0% (442) 100% (1) 0% (15) ND 21% (14) ND 32% (19)Copper, total 32% (119) 17% (387) 4% (25) 20% (5) ND 100% (4) 0% (1) 100% (4)Ir<strong>on</strong>, total 31% (257) 53% (477) 4% (74) 0% (32) 38% (8) 36% (25) 11% (19) 26% (35)Lead, total 12% (113) 4% (383) 8% (24) 0% (5) ND ND 0% (1) 100% (1)T-180

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