Nuclear Physics and Atomic Energy

ядерна ф≥зика 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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Nucl. Phys. At. Energy 2019, volume 20, issue 3, pages 296-303.
Section: Radiobiology and Radioecology.
Received: 24.04.2019; Accepted: 11.07.2019; Published online: 30.11.2019.
PDF Full text (ua)
https://doi.org/10.15407/jnpae2019.03.296

Dynamics of 137Cs transfer factors and concentration ratios in grass of natural meadows on peat-bog soils in the early period after imitation of the radioactive fallout

I. M. Maloshtan*, S. V. Polishchuk, Yu. V. Khomutinin

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

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

Abstract: Results of the small-field experimental study of the dynamics of biological availability of freshly added standard radioactive solution of 137Cs in peat-bog soil are presented. The initial values of the 137Cs concentration ratios CR(t) and transfer factors TF(t), in the aboveground phytomass of natural meadow grass vegetation in peat-bog soils in the real soil-climatic conditions of Western Polissya were determined. Based on the results of the field and laboratory studies, the values of fast and slow periods of the ecological half-reduction (Tfe and Tse, respectively) of CR and TF of radioactive cesium in the studied soils were estimated. The model for prediction of the dynamics of CR and TF of radioactive cesium into natural meadow grass vegetation from peat-bog soils with its abnormal high biological availability was proposed.

Keywords: 137Cs, concentration ratio, transfer factor, dynamics, peat-bog soils, mathematical model.

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