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The chemistry of major cations (Mg2+, Ca2+, Na+, and K+) and anions (HCO3−, SO42−, and Cl−) in the water of Lake Pumayum Co and its inflow river was studied, revealing the obvious ionic difference among various inflow rivers and the lake. The chemical type of the lake water was Mg2+-Ca2+-HCO3−-SO42+, but the major ions of the main inflow rivers were Ca2+-Mg2+-HCO3−. In the lake inlet of Jiaqu...
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