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- Title
Multivariate Statistical Analysis in Assessing Surface Water Toxicity in the Volga Reservoirs (Based on the Results of Bioassay and Chemical Analysis).
- Authors
Lozhkina, R. A.; Seleznev, D. G.; Tomilina, I. I.; Gapeeva, M. V.
- 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.
- Subjects
MULTIVARIATE analysis; ANALYTICAL chemistry; BIOLOGICAL assay; SURFACE analysis; HEAVY metals; RESERVOIRS
- Publication
Water Resources, 2023, Vol 50, pS203
- ISSN
0097-8078
- Publication type
Article
- DOI
10.1134/S0097807823602157