R. A. Lozhkina, D. G. Seleznev, I. I. Tomilina, M. V. Gapeeva
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引用次数: 0
Abstract
The effect of the concentration and toxicity of chemical elements in the surface water of the Volga reservoirs on the results of bioassays with the use of cladoceran Ceriodaphnia affinis Lilljeborg has been studied. Multidimensional statistical analysis has shown a direct dependence of the death rate characteristics of crustaceans on heavy metal concentrations, while the fertility characteristics do not depend on it. The examined elements that have strongest effect on surface water toxicity are Sr, As, and Li; Mo, Sb, and V have a considerable effect; and the effect of Ni, Sc, U, and W is less significant. The mean concentrations of Sr and Mo in the toxic group, evaluated by the results of analysis, were found to be close to their maximal permissible concentrations according to Russian standards; such concentrations for Li and As are an order of magnitude less.
期刊介绍：
Water Resources is a journal that publishes articles on the assessment of water resources, integrated water resource use, water quality, and environmental protection. The journal covers many areas of research, including prediction of variations in continental water resources and regime; hydrophysical, hydrodynamic, hydrochemical and hydrobiological processes, environmental aspects of water quality and protection; economic, social, and legal aspects of water-resource development; and experimental methods of studies.
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