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Flood-related changes of heavy metal concentrations in channel sediments were investigated on the Biala Przemsza River, southern Poland, which receives effluent from lead and zinc mining. Concentrations of Zn, Pb and Cd in samples taken in August 1993 were compared with those in samples collected after a 100-year flood of July 1997 and after a 2-3-year flood in March 1998. The first flood caused a...
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