Data Dictionary (English, XLS)

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XLS

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ingestable

Publisher-reported update

2019-02-21

Water Quality Monitoring on Tributaries in the Athabasca River Oil Sands Region Ells River (EL1, ELLS RIFF 2, ELLS RIFF5 [2012-2015]) Mackay River (MA1 [2012-2015], MA2 [2013-2015]) Steepbank River (STB RIFF1, STB WSC, STB RIFF7, STB RIFF10 [2012-2015]) Firebag River (FI1, FI WSC [2012-2015]) Muskeg River (MU1 [2012-2015]), MU6 [2012-2015]), MU7 [2012]) High Hills River (HIHI1 [2013-2015]) Water quality of tributaries in the Athabasca River oil sands region is heavily influenced by the presence of the underlying Cretaceous bedrock, which is comprised of shale, sandstone and limestone. The waters are moderately hard (average alkalinity of 114 mg l-1 CaCO3) because of their mineral content, particularly magnesium (average 8.62 mg l-1), calcium (average 28.06 mg l-1) and bicarbonate (138.53 mg l-1). This mineral content results in an average conductivity of 245 +/- 4 µS cm-1 and total dissolved solids concentration of 140 +/- 2 ppm. Concentrations of nitrogen and phosphorus (indicators of nutrient status) are typically low to moderate, averaging 0.14 mg l-1 total phosphorus, 0.03 mg l-1 total dissolved phosphorus, 0.92 mg l-1 total nitrogen, 0.09 mg l-1 nitrogen as nitrate+nitrite,…

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