Radioactive contamination of air, underlying surface, agriculture products and population exposure doses near the Novovoronezh NPP site: model computations

Population exposure from the dose-forming nuclides contaminating air and underlying surface in the Novovoronezh NPP (NNPP) observation zone (OZ) is estimated in compliance with the Permissible Releases Guidance (PR-98). For this purpose, the authors have developed and applied computerized procedures to solve the following problems: a) to compute OZ average annual air concentrations and land fallout of radionuclides occurring in NNPP releases; b) to estimate population exposure doses from the contamination of air, land and agriculture products with those nuclides. The mean annual effective dose for the OZ NNPP population is rather insignificant, 2.2·10-5 Sv.