Nuclear Physics and Atomic Energy

Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English
  Periodicity: 4 times per year

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Nucl. Phys. At. Energy 2021, volume 22, issue 1, pages 62-73.
Section: Radiobiology and Radioecology.
Received: 07.08.2020; Accepted: 02.04.2021; Published online: 19.06.2021.
PDF Full text (ua)

Dynamics of specific activity of 90Sr and 137Cs in representatives of ichthyofauna of Chornobyl Exclusion Zone

A. Ye. Kaglyan1,*, D. . Gudkov1, S. . ʳreev2, V. G. lenus1, V. V. Belyaev1, L. P. Yurchuk1, V. V. Drozdov2, . . Hupalo1

1 Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2 State Specialized Enterprise Ecocenter of the SAEZ of Ukraine, Chornobyl, Ukraine

*Corresponding author. E-mail address:

Abstract: The results of the assessment of levels of radionuclide contamination of fish during 2013 - 2019 in the reservoirs of the Chornobyl Exclusion Zone (lakes Azbuchyn, Vershyna, Hlyboke, Daleke, Yanivsky Backwater, Chornobyl NPP cooling pond) are presented. It was found that the concentration of 137Cs in representatives of ichthyofauna of water bodies during the study period continued to decrease, while the concentration of 90Sr, with some exceptions, remained unchanged or increased. The concentration of radionuclides in fish of the studied reservoirs was about 60 - 5000 times for 90Sr and in 3 - 200 times for 137Cs higher than the permissible levels for fish products accepted in Ukraine.

Keywords: Chornobyl Exclusion Zone, reservoirs, fish, radioactive contamination, 137Cs, 90Sr.


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