Copper Accumulation in a Reservoir Ecosystem Following Copper Sulfate Treatment (St. Germain Les Belles, France)

摘要: Copper sulfate (CuSO4) addition to freshwater for phytoplankton control has been practiced decades, and remains the most effective algicidal treatment numerous managed water bodies. A reservoir in centre of France was site an investigation copper distribution aquatic systems after a treatment. Results monitoring showed rapid conversion dissolved Cu particulate forms, with significant accumulation sediments. Total sediment content increased from approximately 37.7 45.4 μg g-1 dry weight first Sequential extraction suggested that portion sediment-borne associated organic fraction which may release column, although would occur only under extreme changes chemistry. Based upon measured concentrations, flows at down-stream water, known mass applied during treatment, balance calculations indicated 17% exported over 70 day period following 196 L-1 Cu2+ (as CuSO4·5H2O) treatment.Copper bioaccumulation by moss, Fontinalis antipyretica it possible distinguish between treated untreated area. The impact treatmentin could be followed using mosses. There is distance effect exploited determine potential example. largest amount probably adsorbed on downstream or lost running water. Thirty days addition, still indicatedcopper exposure.