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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 4.15. Summary <str<strong>on</strong>g>of</str<strong>on</strong>g> the available surface-water chemistry data for reference areas within the <strong>Fraser</strong> <strong>River</strong> Basin.Life Stage/Class/AnalytennDetect% N<strong>on</strong>-DetectMeanSDGeometricMeanMinMaxPercentile Distributi<strong>on</strong>5th 10th 25th 50th 75th 90th 95thMetals (µg/L; c<strong>on</strong>tinued)Selenium, total 119 39 67% 0.086 0.117 NA 0.025 0.97 0.025 0.025 0.05 0.05 0.1 0.2 0.223Silver, total 100 38 62% 0.0489 0.0684 NA 5E-04 0.6 0.0005 0.0005 0.001 0.05 0.05 0.1 0.1Smolt Outmigrati<strong>on</strong>C<strong>on</strong>venti<strong>on</strong>alsHardness (mg/L) 94 94 0% 68.3 6.62 68 53.9 82.1 57.1 59.9 63.4 68.6 73.3 76.6 78.9Dissolved Oxygen (mg/L) 18 18 0% 10.1 0.946 10 6.8 11 9.35 9.87 9.93 10 10.8 11 11pH (pH units) 92 92 0% 7.86 0.291 7.86 6.6 8.22 7.21 7.4 7.88 7.95 8 8.1 8.1Residue N<strong>on</strong>-filterable (TSS; mg/L) 31 12 61% 5.16 1.82 4.89 2.5 10 2.5 2.5 5 5 5 5 10Temperature (C) 96 96 0% 6.84 2.38 6.37 1.5 12.5 3.38 4 5 7 8 10 11.3Turbidity (NTU) 96 96 0% 1.29 1.18 0.83 0.07 6.3 0.168 0.2 0.4 0.925 1.93 2.55 3.63Nutrients (µg/L)Nitrate (NO 3 ), dissolved 28 28 0% 71.9 12.2 70.6 30 94 55.8 59.7 67 72 80 83.3 84.7Nitrogen - Nitrite, dissolved (NO 2 ) 28 13 54% 3.73 4.01 2.62 1 22 1 1 1 2.5 5 5 5Phosphorus, total (stream) 50 43 14% 4.21 3.63 3.3 1 20 1 1 2 4 5 7 7.78Major I<strong>on</strong>s (mg/L)Chloride, dissolved 96 80 17% 0.646 1.71 0.436 0.1 17 0.245 0.25 0.3 0.4 0.553 0.7 0.9Fluoride, total 13 13 0% 0.0269 0.0184 0.0227 0.01 0.08 0.01 0.01 0.02 0.02 0.03 0.038 0.056Sulfate, dissolved 65 65 0% 13.3 2.45 13 8.6 19 9.44 10.1 11.7 13 14.9 16.4 17.8Metals (µg/L)Aluminum, total 61 61 0% 85.5 44.6 74.9 32 218 35 40 47.3 73.3 119 144 163Bor<strong>on</strong>, total 18 14 22% 0.744 0.516 0.45 0.05 1.5 0.05 0.05 0.3 0.8 1.1 1.4 1.42Cadmium, total 29 28 3% 0.106 0.266 0.0148 5E-04 1.1 0.0014 0.0028 0.004 0.005 0.1 0.1 0.64Chromium, total 67 51 24% 0.584 1.23 0.218 0.031 8.8 0.0496 0.0574 0.1 0.169 0.4 1.58 2.27Cobalt, total 67 64 4% 0.23 0.121 0.198 0.05 0.6 0.1 0.1 0.128 0.2 0.3 0.4 0.403Copper, total 75 74 1% 3.4 14.1 1.05 0.1 122 0.394 0.454 0.5 0.8 1.5 3.9 10.5Ir<strong>on</strong>, total 79 79 0% 98.4 82.9 75.2 17.8 615 22.8 24.7 40.2 86.1 125 170 203Lead, total 75 44 41% 0.288 0.373 0.162 0.014 2 0.0278 0.0556 0.1 0.1 0.3 0.8 1.03Manganese, total 75 72 4% 8.29 3.56 7.39 1 17.5 2.94 3.82 5.5 8.3 10.2 12.9 14T-137

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