Abstract
Accumulation of Ni, Zn, and Cu by soft tissues of Anodonta anatina (L.) was studied in the place of sewage release into the Dnieper River (the municipal wastewater treatment plant of Kiev) and into the Desna River (the municipal wastewater treatment plant of Chernigov). It has been shown that the content of Ni and Zn in mollusks reflects dynamics of metal concentration in the water downstream of the place of sewage release. The content of organic matter in bottom sediments influences the process of Cu accumulation by mollusks. Higher concentrations of Zn, Ni, and Cu in mollusks are registered within the distance of more than 9 km away from the place of sewage release. Thus, mollusks are sensitive indicators of the influx of non-purified sewage into river ecosystems.
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