Ядерна фізика та енергетика 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   Open access peer reviewed journal

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O. L. Zarubin¹, A. A. Zalissky², L. A. Golovach<sup>1

1</sup>Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
²State Specialized Scientific and Production Enterprise "Chernobyl Radioecological Center" ("Ecocentre"), Chornobyl, Ukraine

Abstract: The accumulation of ¹³⁷Cs by Ctenopharyngodon idella (Valencinnes) was studied up keeping it in fishing-cribs in cooling-pond of ChNPP. In May 2000, at the beginning of research, the contents of ¹³⁷Cs in muscles was 70 - 130 Bq/kg. The equilibrium condition of the ¹³⁷Cs contents in water, forage (Phragmitela australis) and C. idella has started in 2.5 – 3.5 months after the beginning of the experiment. At this time ¹³⁷Cs contents in muscles has achieved 1600 - 2600 Bq/kg. During subsequent 13 months the contents of ¹³⁷Cs varied within the limits of 1600 - 3800 Bq/kg, that, probably, is explained by peculiarities of seasonal dynamics of radiocesium behaviour in cooling-pond.

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