11.07.2015 Views

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Table 4.27. Evaluati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> potential hazards in surface water posed to sockeye salm<strong>on</strong> exposed to c<strong>on</strong>taminants within the Chilko <strong>River</strong> Area <str<strong>on</strong>g>of</str<strong>on</strong>g> Interest(hazard quotients >1.0 were used to identify c<strong>on</strong>taminants that pose potential hazards to sockeye salm<strong>on</strong>.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>cernMaximum Hazard QuotientSpawning & 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-1990Metals (c<strong>on</strong>tinued)Selenium, total ND ND ND ND ND 0.2 ND 0.2Silver, total ND 0.5 ND 0.5 ND 0.1 ND 0.1ND = 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 usable data were available in an area <str<strong>on</strong>g>of</str<strong>on</strong>g> interest were reported.Bolded values indicate hazard quotients >1.0.Pre-1990 includes 1990.1 For pH, a reported maximum hazard quotient <str<strong>on</strong>g>of</str<strong>on</strong>g> zero indicates that no measurements were outside the TSV range (i.e., all pH measurements were between 6.5 and 9.0).T-160

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!