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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 5.13. 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 threshold for surface water in spawning and incubati<strong>on</strong> areas 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>cernArea <str<strong>on</strong>g>of</str<strong>on</strong>g> InterestLower <strong>Fraser</strong> <strong>River</strong> Upper <strong>Fraser</strong> <strong>River</strong> Pitt <strong>River</strong> Cultus LakeKakawa LakePre-1990 Post-1990 Pre-1990 Post-1990 Pre-1990 Post-1990 Pre-1990 Post-1990 Pre-1990 Post-1990C<strong>on</strong>venti<strong>on</strong>als (mg/L)Residue: N<strong>on</strong>filterable(TSS)NutrientsNitrogen - Nitrite,dissolved (NO 2 )ND ND ND ND ND ND 0% (24) ND ND NDND ND ND ND ND ND 0% (20) ND ND NDMajor I<strong>on</strong>sChloride, dissolved ND ND ND ND ND ND 0% (19) ND ND NDSulfate, dissolved ND ND ND ND ND ND 0% (18) ND ND NDMetalsAluminum, total ND ND ND ND ND ND ND ND ND NDArsenic, total ND ND ND ND ND ND ND ND ND NDCadmium, total ND ND ND ND ND ND 0% (1) ND ND NDChromium, total ND ND ND ND ND ND ND ND ND NDCobalt, total ND ND ND ND ND ND ND ND ND NDCopper, total ND ND ND ND ND ND 8% (13) ND ND NDIr<strong>on</strong>, total ND ND ND ND ND ND 8% (12) ND ND NDLead, total ND ND ND ND ND ND 0% (6) ND ND NDMercury, total ND ND ND ND ND ND 0% (2) ND ND NDNickel, total ND ND ND ND ND ND 0% (3) ND ND NDSelenium, total ND ND ND ND ND ND ND ND ND NDSilver, total ND ND ND ND ND ND ND ND ND NDOtherPhenols ND ND ND ND ND ND 0% (12) ND ND NDND = no data; TSS = total suspended solids.T-225

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