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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 4.43. 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 Bowr<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 ND ND ND 0% (48) ND ND ND NDResidue N<strong>on</strong>-filterable (TSS) ND ND ND 0% (44) ND ND ND NDTurbidity ND ND ND 0% (48) ND ND ND NDNutrientsNitrate (NO 3 ), dissolved ND ND ND 0% (43) ND ND ND NDNitrogen-Nitrite, dissolved (NO 2 ) ND ND ND 0% (48) ND ND ND NDPhosphorus, total (lake) ND ND ND 52% (48) ND ND ND NDND = no data; TSS = total suspended solids.Only chemicals <str<strong>on</strong>g>of</str<strong>on</strong>g> potential c<strong>on</strong>cern for which data were available in an area <str<strong>on</strong>g>of</str<strong>on</strong>g> interest were reported.Pre-1990 includes 1990.T-188

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