Volga River: Pollution, Water Quality, Toxic Contamination and Fish Health pp. 203-232
Authors: (T.I. Moiseenko, N.A. Gashkina, Yu.N. Sharova, V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry, RAS, Moscow, Russia, and others)
Abstract: The characteristic of current state of Volga river is given. Concentrations of organic and inorganic toxic substances in water are reported. Basic clinical and postmortem signs of fish intoxication 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. The main disturbances to fish caused by the accumulation of microelements in their organs and tissues are also considered. Based on dose–effect dependencies calculated with respect to the total concentration of toxic substances,
standardized to MPC, and fish health criteria, cases that exceed the critical levels of pollutants are demonstrated for the investigated river sections.