Accumulation of 90Sr by the representatives of pray fish in water basins of Chornobyl exclusion zone and other water basins of Ukraine

Abstract

The results of studies of radioactive contamination of fishes’ organs and tissues of different ecological groups in water basins within the Chоrnobyl exclusion zone and other water basins of Kyiv region & Pokuttya have presented. During last years a continuing decrease of 90Sr specific activity in ichthyofauna representatives of all Ukrainian water basins was registered. The exception are the pray fish species of closed water basins of the Chоrnobyl exclusion zone where the 90Sr content remains at a certain high level. It is shown, that 90Sr for present time is the main dose-formed radionuclide for fish of the majority of water bodies within the Chornobyl exclusion zone.

Keywords

• 90sr
• specific activity
• radioactive contamination
• fish
• chornobyl exclusion zone
• water basins
• dnister river