Radiation doses to the population in different periods after the Chernobyl accident

«Radiation and Risk», 2014, vol. 23, No. 3, pp.100-114

Authors

Ponomarenko V.V. – Postgraduate Student, Russian Institute of Agricultural Radiology and Agroecology, Obninsk, Russia.
Panov A.V. – Head of Sector, Dr. Sci., Biol., Russian Institute of Agricultural Radiology and Agroecology, Obninsk, Russia. Contacts: Kievskoe Sh., 109 km, Obninsk, Kaluga region, Russia, 249032. Tel.: (484) 399-69-59; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. .
Marochkina E.V. – Junior Researcher, Russian Institute of Agricultural Radiology and Agroecology, Obninsk, Russia.

Abstract

The purpose of the study is to analyze radiation doses to population residing in territories contaminated with radionuclides calculated in different periods after the Chernobyl accident. Temporal changes of radiation doses to residents of the territories with different levels of radioactive contamination and types of soil, as well as the contribution of internal and external radiation doses to integral radiation dose were analyzed. The authors found that the value of internal radiation dose as compared with the external dose in the first years after the accident depended on a type of soil, it was higher (about 55%) in residents of territories with prevailing light type of soil, it decreased with time, at the present time it is about 25%. In the territories with prevailing heavy type of soil the value of internal radiation dose to the residents was lower, it was about 25-30% in 1990 and 5-7% in 2000.

Key words
Chernobyl accident, external radiation dose, internal radiation dose, population, radioactive contamination, types of soil, radiation doses, transfer ratio.

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