Effective dose estimation for the population in Kragujevac due to the Chernobyl accident

The doses that inhabitants of Kragujevac received after the nuclear accident in Chernobyl are given in this paper. During April and May in 1986, the radionuclide content in rain water was determined by applying gamma spectroscopic analysis, and the exposure dose rate in air was measured. The results obtained are the basis for absorbed dose, effective dose and commitment dose calculations. The effective dose, that some individuals received for the first year after the accident, due to the external exposure was estimated to be 50 μSv. Thus, the collective effective dose commitment due to the external exposure for population in Kragujevac town amounts to 11.5 Sv man. The effective dose from internal radiation due to 131I and 137Cs was also estimated, and amounted to 195 μSv in the first year. The collective effective dose commitment, due to the internal exposure (for 50 years) will be 43 Sv man. The total effective dose commitment (50 years) will be 0.32 mSv, while the total collective effective dose commitment will be 54.5 Sv man. (author)