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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimir: 0018-8166
ISSN On-line: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v51.i1.90
pages 98-105

Dynamics of the Formation of Irradiation Dose in Freshwater Fish after Single Influx of 90Sr and 137Cs into a Water Body

V. V. Beliayev
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
Ye. N. Volkova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
A. A. Parkhomenko
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
S. P. Prishlyak
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
S. V. Kurganskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine

RESUMO

Dynamics of the formation of irradiation dose in fish after single influx of 90Sr and 137Cs into a water body were studied by the method of mathematical simulation. The dose rate of fish irradiation formed by 90Sr depends on its content in the organism, whereas that of 137Cs − on the concentration of this radionuclide in the water, bottom sediments, and fish organism. Under given conditions, the dose rate of fish irradiation formed by 90Sr will increase for 33 months. Its maximal values will be registered almost throughout the year. After 10 years, the dose rate of fish irradiation will be 2.4 times lower than its maximal value. The dose rate offish irradiation formed by 137Cs will increase for 4−5 months. After two years, the rate of the integral dose will be 8.2 times lower than its maximal value.


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