Abstract
The methodology of radioecological zoning of the territory of possible radioactive contamination was applied to analyze the consequences of a hypothetical radiation accident at the Khmelnytskyi NPP (KhNPP). With the help of the European decision support system in the event of a radiation accident RODOS, as well as a set of models of aerial and root contamination of vegetation, developed at the Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine (ISP NPP NASU), modeling of the transport of radioactive emissions, their deposition on the underlying surface and radioactive contamination of agricultural products within the 100-kilometer zone of the KhNPP influence. Using the obtained calculation results as an example, it is shown that preventive radioecological zoning of the territory of influence of a nuclear power plant, with following highlighting the most radioecologically critical areas, ensures the most optimal interaction between a computer system for forecasting the radiation situation and a radioecological monitoring network. This makes it possible, in the initial period of the accident, to reduce the uncertainty interval of the resulting estimates, to create an optimized scheme for radioecological monitoring of the territory of the agricultural production, and to allocate areas for the production of products with exceeded standards of radionuclides concentration.
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