Variations in different compounds in Volga water, suspension, and bottom sediments in the summer of 2009 |
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| Authors: | I A Nemirovskaya |
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| Institution: | 1. P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Nakhimovskii prosp. 36, Moscow, 117851, Russia
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| Abstract: | Studies of water, suspension, and sediments of the Volga R. (from Konakovo Town to the delta) showed that at the confluence with tributaries, diffusion and dilution play the major role. Changes in conductivity, Biochemical oxygen demand (BOD5), pH, suspension, chlorophyll a, dissolved and organic carbon, lipids, and hydrocarbons take place mostly under the effect of natural processes. Typical features in the case of summer low-water period are low chlorophyll a, suspension, and BOD5. The accumulation of pollutants takes place in bottom sediments because of an increase in the share of Corg, and hydrocarbons have a petroleum and pyrogenic composition. |
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