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, Russian
  Periodicity: 4 times per year

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Nucl. Phys. At. Energy 2015, volume 16, issue 3, pages 263-272.
Section: Radiobiology and Radioecology.
Received: 15.06.2015; Accepted: 30.07.2015; Published online: 12.10.2015.
PDF Full text (ua)
https://doi.org/

Dynamics of 137Cs accumulation by herbaceous plants on peat-bog soils with abnormally high bioavailability

I. M. Maloshtan*, S. V. Polishchuk, Yu. V. Homutinin, V. A. Kashparov

Ukrainian Scientific Research Institute of Agricultural Radiology National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine

*Corresponding author. E-mail address: radiometry@quality.ua

Abstract: Dynamics of bioavailability of freshly introduced 137Cs has been studied in 2-year lab experiments for peat-bog soils of Rokytne district of Rivne region. The obtained parameters of dynamics of root accumulation of 137Cs by herbaceous plants in peat soils with abnormally high bioavailability differ from those previously reported in the literature. Fast period of half-reduction of the concentration ratio of 137Cs was 0.2-0.3 year, and the concentration ratio reached the stable level in 1-2 years. Ratio of the fast to slow components of the concentration ratio extrapolated at the moment of radiocesium injection into soil was estimated as 4-5.

Keywords: 137Cs, dynamics, accumulation coefficient, transfer factor, peat-bog soils, Chernobyl accident.

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