Experience in studying the consequences of the Chernobyl accident in a rural settlement: case study of the village of Novye Bobovichi, Novozybkovsky district, the Bryansk region

The paper discusses the results of long-term studies of the radiation and socio-economic situation in the village of Novye Bobovichi. The research is based on the analysis of homestead inspections data and records from the house registers. During the first 15 years after emergency contamination the migration of 137Cs can be described as an exponent with a half-life (T½) of 7,5 years and a life (T) of 30 years during the following period. For residential areas contaminated as a result of the Chernobyl accident at the level of 1 MBq/m2 for 137Cs, conservative estimates of accumulated doses on various population groups show that maximum external exposure doses for the first 35 years after the accident were no higher than 100 mSv.