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Information × Registration Number 0221U100951, 0120U104939 , R & D reports Title Cellulose-destroying activity of soil microflora in Ukrainian Polissya under radioactive contamination and its participation in biological soil formation processes (including pyrogenically transformed soils) popup.stage_title Head Lazariev Mykola M., к.б.н. Registration Date 11-01-2021 Organization National University of Life and Environmental Sciences of Ukraine popup.description2  The object of research – the regularities of the formation of the radiation situation at the experimental fields which were selected for further investigation on the territory of unconditional (compulsory) resettlement zone of the Chornobyl NPP and the exclusion zone. The aim of research – the formation of theoretical approaches to project implementation, as a logical step-by-step scheme of investigation and preparation of material and laboratory facilities for experiments. Quantitative characterization of radioactive contamination of selected experimental fields also will be done. Research methods – dosimetric, spectrometric, radiochemical analysis, dry combustion method, thermoconduction, potentiometric, fumigation-extraction, statistical analysis. Based on the results of the project 2020 phase, the characteristics of radionuclide contamination of selected experimental fields and indicators of exposure doses in the field, as well as the values of absorbed radiation doses were obtained. In addition, the agrochemical parameters of soil fertility of selected samples, such as acidity, nitrogen, potassium, phosphorus, humus were evaluated. In the zone of unconditional (compulsory) resettlement of the Chornobyl NPP, three areas were selected and inspected, the radioactivity of which was characterized by the following parameters: 137Cs - in the range of 600-4600 Bq/kg, 90Sr - 33-270 Bq/kg. The total absorbed dose rate was also calculated and it was equal to: 0.20 μSv/h in the 1st section, 1.0 μSv/h in the 2nd section, and 1.6 μSv/h in the 3rd section. In the Chornobyl Exclusion Zone the radioactivity indicators of the fields at the selected 3 areas were characterized by the following parameters: 137Cs - 25000-490000 Bq/kg, 90Sr - 33-270 Bq/kg at the same areas. Product Description popup.authors Illienko Volodymyr V. Hudkov Ihor M. Kashparova Olena V. Klepko Alla V Lazarev Mykola M. Pareniuk Olena Yu Polishchuk Sergii V. Shavanova Katerina Ye. popup.nrat_date 2021-01-11 Close