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7327549 
Journal Article 
Calculation of the irradiation dose for some components of the food chain of the freshwater ecosystem of the Yenisei River, during the operation of the nuclear fuel cycle enterprise - The Mining and Chemical Combine, Krasnoyarsk 
Rakitsky, VN; Bondareva, LG; Fedorova, NE 
2018 
Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev 
11 
3 
22-29 
Russian 
This study is focused on the evaluation of the levels of accumulation of the man-made radionuclides by several components of Yenisei River close to the water discharge spot of the Mining and chemical plant containing a significant amount of man-made radionuclides. The study was performed during the period of activity of the third nuclear reactor, belonging to this facility and included measuring the concentration of the gamma-emitting man-made and natural radionuclides. Gamma-spectrometry indicated significant amounts of man-made activation radionuclides (24Na - up to 1950 Bk/kg, 51Cr - up to 2860 Bk/kg) in biological objects. With some assumptions at the dose rate assessment, the highest does were estimated for the following organisms (mkGy/day): water plants - up to 39, fish - grayling 22,3 and pike 36,4. These values are significantly lower compared to the accepted dose from ionizing radiation for the water biota - 10 mkGy/day. © 2018 Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev. All rights reserved. 
Dose rate; Hydrobiont; Man-made radionuclides; Yenisei River