Problem of zoning territory in relation to radiation risk (Bryansk oblast)

The Basics of State Policy in the Field of Nuclear and Radiation Safety of the Russian Federation up to 2025 approved by the President of Russia stress the need for implementing the principle of “socially acceptable risk”. The article presents technology for solving this important problem for population of the Bryansk oblast residing on territories contaminated with radionuclides following the Chernobyl accident. Radiological risk was calculated with the use of new ICRP models (Publication 103). In estimating the risk accumulated radiation doses, medical and demographic data were taken into account. Relationship “age-current risk” and “age-ten year predicted risk” were analyzed. Excess absolute risk (EAR) of mortality and relevant attributable risk fraction (ARF) were used as risk measure. Risk was assessed for men and women in Bryansk oblast separately. Calculated estimates of radiation-related cancer risk among the exposed population were compared with radiation risk values published in the Russian Radiation Safety Standards (NRB-99/209). Results of the study are of top priority in making managerial decisions on minimizing health effects of the Chernobyl accident with an allowance for possible financial and economic restrictions.