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, Russian   Periodicity: 4 times per year   Open access peer reviewed journal

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V. P. Krasnov^1,*, O. O. Orlov², O. V. Zborovska², O. V. Zhukovsky², T. V. Kurbet¹, Z. M. Shelest¹, I. V. Davydova<sup>1

1</sup> Zhytomyr State Technological University, Zhytomyr, Ukraine
² G. M. Vysotskyi Polissia Branch of Ukrainian Research Institute of Forestry and Forest Melioration, Dovzhyk, Zhytomyr region, Ukraine

^*Corresponding author. E-mail address: volodkrasnov@gmail.com

Abstract: It has been established that intensive penetration of ¹³⁷Cs both into the above-ground part of phytomass and blueberry is continuing at present. The transition coefficients of ¹³⁷Cs (m²×kg^-1×10^-3) in the above-ground part of European blueberry (17 - 53) are significantly higher than in berries (4 - 8). The decrease of the levels of ¹³⁷Cs radioactive contamination in above-ground phytomass and European blueberry during the observation period was revealed. ¹³⁷Cs specific activity in European blueberry decreased by 3.7 - 8.3 times, and the same indicator in the above-ground part of the phytomass decreased by 8.2 - 19.2 times during 1991 - 2016. The upper 0 - 10 cm layer of soil mineral part of moist subrory contains 69.9 % of the radionuclide total activity in soil. The highest value of this indicator was observed in 0 - 2 cm soil layer – 28.4 ± 2.0 %. The highest ¹³⁷Cs specific activity was observed in the decomposed part of the forest litter and the upper 0 - 2 cm layer of the humus-eluvial horizon.

Keywords: radionuclides, European blueberry, berries, above-ground phytomass, soil radiation contamination, specific activity of radionuclides, soddy-podzolic soils.

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