THE EVALUATION OF VORONEZH REGION RADIATION CONTAMINATION IMPACT OVER THIRTY YEARS’ PERIOD FOLLOWING THE CHERNOBYL ACCIDENT
Abstract
The study aimed at radiation contamination impact assessment due to the 1986 Chernobyl accident in Voronezh Region territory more than 600 kilometers away from the ground zero. The major Chernobyl accident impact assessment indicators were the characteristics of 137Cs and 90Sr radionuclides’ soil surface contamination (Ci/km2) as well as the average annual effective dose of critical population group ( mSv/year) over 1986–2014. The Population oncological morbidity indicators were analyzed (all malignant neoplasms, including those in thyroid gland, lymphatic and hematopoietic tissue) in the territories contrastingly differing on the levels of radiation factor impact. The study covered the period of 2010–2014.
It was established that for Voronezh Region territories referred to as the post- Chernobyl radioactively contaminated zone over 29 years period the maximum soil surface contamination by 137Cs and 90Sr radionuclides reduced by 1.90 and 1.91 times (from 3,15 Ci/km2 to 1,66 Ci/km2 and from 0,063 Ci/km2 to 0,0033 Ci/km2, respectively).
Currently the relationship was not found between the radioactive contamination density in Voronezh Region and the levels of malignant neoplasms for the local residents.
The present situation related to radiation factor impact on Voronezh Region territories remains stable and safe. Mindful of the indicators results the assessment of ionizing sources impact did not identify any exceeding the normative values.
About the Authors
Yu. I. Stepkin
Doctor of Medical Sciences, Professor, Chief Physician of Voronezh Region’s Hygiene and Epidemiology Center, Federal Service for Consumer Rights Protection and Human Well-Being, Head of the Hygienic Disciplines Chair in Voronezh State Medical University after N. N. Burdenko of the Russian Federation Science and Education Ministry
Russian Federation
Russian Federation
M. K. Kuzmichev
Candidate of Medical Sciences, Head of Radiological Laboratory in Testing Laboratory Center of Voronezh Region Hygiene and Epidemiology Center, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being, Associate Professor Hygienic Disciplines Chair in Voronezh State Medical University after N. N. Burdenko of Russian Federation Education and Science Ministry
Russian Federation
Russian Federation
O. V. Klepikov
Doctor of Biological Sciences, Head of the Information Technologies Organizational Methodological Department of the Hygiene and Epidemiology Center in Voronezh Region’s Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being, Professor of Engineering Ecology Chair in Voronezh State Engineering Technologies University of Russian Federation Education and Science Ministry
Russian Federation
Russian Federation
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Review
For citations:
Stepkin Yu.I., Kuzmichev M.K., Klepikov O.V. THE EVALUATION OF VORONEZH REGION RADIATION CONTAMINATION IMPACT OVER THIRTY YEARS’ PERIOD FOLLOWING THE CHERNOBYL ACCIDENT. Radiatsionnaya Gygiena = Radiation Hygiene. 2016;9(1):38-44. (In Russ.)
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