Comprehensive Analysis of Radioactive and Chemical Contamination of Water Bodies in the Area of Radium-Industry Waste Storage |
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| Authors: | Evseeva T I Geras'kin S A Shuktomova I I Khramova E S |
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| Institution: | (1) Institute of Biology, Komi Scientific Center, Ural Division, Russian Academy of Sciences, ul. Kommunisticheskaya 28, Syktyvkar, 167982, Russia;(2) All-Russia Research Institute of Agricultural Radiology and Agricultural Ecology, Russian Academy of Agricultural Sciences, Kievskoe sh., Obninsk, Kaluga oblast, 249020, Russia |
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| Abstract: | Genotoxicity and cytotoxicity of water samples from the creeks flowing through the area of radium mining waste storage into the Ukhta River and from this river were assessed using biological tests with Allium schoenoprasum L. Chemical analysis of the samples indicated that concentrations of parent heavy natural radionuclides, 210Pb, and 210Po do not exceed the allowable level. Of ten heavy metals, only Zn and Mn concentrations exceeded MACs. The results of biological tests provided evidence for the significantly increased genotoxicity of water samples. The mitotic index increased with an increase in the concentration of Zn ions and manifested an inverse dependence on the activity of 238U. The genotoxic effect linearly depended on Zn concentration. Possible mechanisms responsible for the induction of these biological effects are discussed. |
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| Keywords: | radioactive and chemical contamination toxicity genotoxicity biological testing Allium schoenoprasum |
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