Hygienic Evaluation of Exposure Doses for the Voronezh Region Population From the Natural and Technogenously Modified Background

Стёпкин, Ю И; Кузмичев, М. К.; Клепиков, О. В.; Студеникина, Е. М.

doi:10.21514/1998-426x-2018-11-2-74-82

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Введение. Проблема радиационной безопасности при облучении населения природными источниками привлекает особое внимание, так как, согласно данным многочисленных исследований, среди источников ионизирующего излучения природные источники являются основным фактором облучения населения не только на территории Российской Федерации [1][2][3][4][5], но и в мире [6]. Многолетние наблюдения в рамках «Единой государственной системы контроля и учета индивидуальных доз облучения граждан» (ЕСКИД), радиационно-гигиеническая паспортизация и результаты научных исследований свидетельствуют, что вклад природных источников ионизирующего излучения в суммарные дозы населения в среднем по Российской Федерации составляет более 80 % [7][8][9].…”

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The Influence of Natural Sources on Radiation Exposure Levels in the Population of the Arkhangelsk Region

Грицай¹,

Мироновская²,

Унгуряну³

2020

PH&LE

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Introduction: The issue of radiation safety in terms of population exposure to natural sources of background radiation remains relevant since, according to the results of numerous studies, among all sources of ionizing radiation the natural ones contribute the most to the population exposure worldwide. Our purpose was to assess the contribution of natural sources of background radiation to the individual effective dose of the population of the Arkhangelsk Region. Materials and methods: We measured residential indoor and outdoor gamma dose rates and the residential indoor equivalent equilibrium volumetric activity of radon isotopes. We also analyzed data of statistical form No. 4-DOZ “Information about population exposure doses attributed to the natural and anthropogenically altered background radiation” and radiation hygiene passportization conducted in 2008–2017 by cities and districts of the Arkhangelsk Region and estimated long-term average indicators of the individual effective dose of radiation and chain indicators of the growth rate. Results: We established that the internal exposure to radon isotopes (46.8%) and external terrigenous exposure (23.6%) contributed the most to the individual effective dose due to natural sources in the population of the Arkhangelsk Region. In 2008–2017, the individual effective dose attributed to natural sources was 2.50 mSv/yr, to external exposure – 0.59 mSv/yr, and to internal exposure to radon isotopes – 1.17 mSv/yr. The analysis of average values of the equivalent equilibrium volumetric activity of radon isotopes and the gamma radiation dose rate in residential buildings of various type (wooden, single-story stone and multistory stone) in the Arkhangelsk Region supported the conclusion about the significant contribution of the former to the individual effective dose due to natural sources. Conclusions: We established the contribution of natural sources of ionizing radiation to the total doses of the population.

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The Influence of Natural Sources on Radiation Exposure Levels in the Population of the Arkhangelsk Region

Грицай¹,

Мироновская²,

Унгуряну³

2020

PH&LE

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Comparative evaluation of average doses of radiation of population of Irkutsk and Voronezh regions according to «Unified state system of control of individual doses»

Rakitskii

Кузмичев

Клепиков

et al. 2021

Radiac. gig. (2008)

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The aim of the study was a comparative assessment of radiation doses to the population of the Voronezh and Irkutsk regions according to the unified state system for monitoring individual doses and radiation-hygienic certification. The objects of research were the territories of the Voronezh and Irkutsk regions, significantly differing in climatic conditions and resources, industrial potential, but comparable in terms of population. The subject of the study was the average territorial values of radiation doses to personnel due to the normal operation of anthropogenic sources, radiation doses to the population due to natural sources and anthropogenic background, radiation doses to patients due to the use of ionizing radiation in medical diagnostics. The method of comparative analysis of effective collective and individual average annual radiation doses was used. In the Voronezh and Irkutsk regions, the priority dose-generating factor is natural radiation, which contribution to the annual effective collective dose is 83.33 and 89.18%, respectively. At the same time, the average individual annual effective doses to the population due to natural sources of ionizing radiation in the Irkutsk region in relation to the Voronezh region are significantly higher for radon – 2,81 times, due to the content of radionuclides in drinking water – 1,93 times and external terrigenous radiation – 1,46 times, which leads to a two-fold difference in the total individual effective doses associated with natural sources of ionizing radiation. These differences are explained by the features of the physical and geographical location of territories. There are significant differences in the values of the average effective annual doses of the population due to global fallouts and past radiation accidents, because a part of the territory of the Voronezh region was exposed to radioactive contamination as a result of the accident at the Chernobyl nuclear power plant (in the Voronezh region – 0.062 mSv / year, in the Irkutsk -0.005 mSv / year). Radiography (63.15 and 67.27%) makes the leading contribution to the value of medical radiation doses, which occupy the second place in the structures of the effective collective annual doses to the population (in the Voronezh region make up 16.46%, in the Irkutsk region – 10.74%) and fluorography (31.29 and 27.41% in the regions, respectively). It was established that the radiation situation in the Voronezh and Irkutsk regions remains stable and safe.

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Hygienic Evaluation of Exposure Doses for the Voronezh Region Population From the Natural and Technogenously Modified Background

Cited by 2 publications

References 6 publications

The Influence of Natural Sources on Radiation Exposure Levels in the Population of the Arkhangelsk Region

The Influence of Natural Sources on Radiation Exposure Levels in the Population of the Arkhangelsk Region

Comparative evaluation of average doses of radiation of population of Irkutsk and Voronezh regions according to «Unified state system of control of individual doses»

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