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

Full text (ua)

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 (T^f_e and T^s_e, 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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