Ecotoxicological Assessment of After-Effects of the Volga River Water Contamination
Autor: | N. A. Gashkina, Yu. N. Sharova, T. I. Moiseenko, A. G. Pokoeva |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | Water Resources. 32:369-383 |
ISSN: | 1608-344X 0097-8078 |
DOI: | 10.1007/s11268-005-0048-6 |
Popis: | Comprehensive assessment of ecotoxicological situation in the Volga River basin is presented. Concentrations of organic and inorganic toxic substances are cited. Basic clinic and postmortem symptoms of intoxication in fish are described; changes in the cellular structure of their organs and tissues, as well as disturbances in hemogenesis, developing under the effect of toxic agents, are characterized. Based on the dose-effect dependences, calculated according to the values of the total concentration of toxic substances, standardized to MPC, and criteria of the physiological state of fish, cases of exceedance of the critical concentrations of pollutants are demonstrated for the investigated river sections. |
Databáze: | OpenAIRE |
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