Radioecological investigation of the Techa-Iset' river system |
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| Authors: | A V Trapeznikov V N Pozolotina I V Molchanova P I Yushkov V N Trapeznikova E N Karavaeva M Ya Chebotina A Aarkrog H Dahlgaard S P Nielsen Q Chen |
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| Institution: | 1. Insitute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences, ul. Vos' mogo Marta 202, 620219, Yekaterinburg, Russia
2. Ris? National Laboratory, Roskilde, Denmark
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| Abstract: | Data on the current radioecological situation in the Techa-Iset' river system, which was contaminated by radioactive wastes
from the Mayak Production Association in the 1940s and 1950s, are discussed. Mathematical models are presented that describe
the decrease in the contamination of water, bottom sediments, hydrobionts, and floodplain soils with an increase in the distance
from the discharge site. The amounts of90Sr,99Tc,137Cs, and transuranium elements in the main components of the ecosystem are estimated. |
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| Keywords: | radionuclides migration accumulation river ecosystem water soils hydrobionts floodplain soils |
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