Assessment of the dynamics of individualized internal exposure dose irradiation of PSRER workers of the Polesie State Radiation-Ecological Reserve
Keywords:
radioactive contamination, internal dose, PSRER, WBC measurementsAbstract
The purpose of the study was to analyze the long-term dynamics of the internal radiation dose of PSRER employees, as well as to determine the factors that determine the variation of its indicators in different categories of the examined personnel. A statistical analysis of the internal radiation dose of the reserve employees for the period from 2007 to 2021 was carried out. The results of 9525 measurements obtained from monitoring the internal radiation dose of personnel on a spectrometer (counter) of human radiation SKG-AT 1316 were studied. Long-term, gender, professional, age and local differences in the obtained data were determined. It was revealed that the level of internal radiation dose of personnel in most cases (4317 measurements) does not exceed 0.01 mSv/year, and in 87 % of measurements it does not exceed 0.055 mSv/year; only 1.3 % of employees had internal radiation dose indicators higher than 2 mSv/year. Over the long-term observation period, the highest values were observed in 2010 and 2011 – 0.029 and 0.027 mSv/year, respectively. Analysis of the internal radiation dose in representatives of different specialties allowed us to determine the highest median dose levels in gamekeepers (0.02 mSv/year), horse breeders, firefighters and drivers, and the lowest in engineering and research personnel. Based on the measurements, the reserve personnel can be divided into 3 professional groups. According to the data obtained, the level of internal radiation dose was statistically significantly (p < 0.05) higher in men than in women (2 times). Among workers from various populated areas, the highest values were noted among residents of the city of Narovlya (0,3 mSv/year). Relatively high levels of internal radiation dose were determined for employees from the villages of Berezovka and Malishev (0.1 mSv/year). When analyzing the age dependencies of the formation of the internal radiation dose, 5 age groups were identified, which were distinguished by statistically significant differences in this indicator: the maximum levels were found in individuals aged 35–46 years (0.015 mSv/year), and the minimum levels were found in individuals aged 18–26 years (0.007 mSv/year).
References
- Vlasova NG, Visenberg YuV, Evtushkova GN, Droxd EA. Otsenka doz oblucheniya naseleniya v otdalennom periode posle chernobylskoy avari [Assessment of radiation doses to the population in the long-term period after the Chernobyl accident]. Health and Ecology Issues. 2014;4(42):129–134. Russian.
- Rakitsky VN, Kuzmichev MK, Klepikov OV, Kurenkova GV. Sravnitel’naya otsenka srednikh doz oblucheniya naseleniya Irkutskoi i Voronezhskoi oblastei po dannym ESKID [Comparative evaluation of average doses of radiations of population of Irkutsk and Voronezh regions according to «Unified state system of control of individual doses»]. Radiation Hygiene. 2021;2(14):72–78. DOI: https://doi.org/10.21514/1998-426X-2021-14-2-72-78. Russian.
- Eventova LN, Mataras AN, Batyan AN. Dozy oblucheniya naseleniya Belarusi vsledstvie avarii na Chernobyl’skoi atomnoi elektrostantsii na 2021–2025 gg. [Exposure doses to the population of Belarus from the Chernobyl accident in 2021–2025]. Journal of the Belarusian State University. Ecology. 2022;4:70–78. DOI: https://doi.org/10.46646/2521-683X/2022-4-70-78. Russian.
- Bratilova AA, Bazyukin AB, Gromov AV. Obzor srednikh tekushchikh i nakoplennykh effektivnykh doz oblucheniya zhitelei naselennykh punktov Rossiiskoi Federatsii, otnesennykh k zonam radioaktivnogo zagryazneniya [Overview of average current and accumulated effective radiation doses of the Russian federation settlements residents classified as zones of radioactive contamination]. Civil security technologies. 2017;10(4):73–78. Russian.
- Vlasova NG. Otsenka srednikh godovykh effektivnykh doz oblucheniya zhitelei naselennykh punktov, raspolozhennykh na territoriyakh, zagryaznennykh radionuklidami v rezul’tate avarii na ChAES [Assessment of the average annual effective doses for the inhabitants of the settlements located in the territories contaminated due to the Chernobyl accident]. Radiation hygiene. 2012;5(2):9–13. Russian.
- Balonov MI, Bruk GYa, Zvonova IA. Metodologiya rekonstruktsii dozy vnutrennego oblucheniya naseleniya Rossii vsledstvie Chernobyl’skoi avarii [Methodology of internal dose reconstruction for the russian population after the Chernobyl accident]. Radiatsionnaya Gygiena = Radiation Hygiene. 2008;1(3):12–20. Russian.
- Panov AV, Komarova LN, Lyapunova ER, Mel’nikova AA. Osobennosti formirovaniya dozovykh nagruzok na naselenie naibolee postradavshikh posle Chernobyl’skoi avarii raionov Rossii [Peculiarities of the exposure dose formation on the population in the most affected regions of Russia after the Chernobyl NPP accident. News of higher educational institutions]. Nuclear energy. 2023;3:73–84. DOI: https://doi.org/10.26583/npe.2023.3.06. Russian.
- Kliaus VV, Zhukova OM, Huseinava DI. Metod otsenki doz oblucheniya personala i naseleniya v rezul’tate ingalyatsionnogo postupleniya radionuklidov pri pozharakh na territoriyakh s vysokim urovnem radioaktivnogo zagryazneniya [Method for dose assessment to workers and public as a result of inhalation intake of radionuclides during fires at the territories with a high level of radioactive contamination]. Journal of the Belarusian State University. Ecology. 2023;2:57–67. DOI: https://doi.org//10.46646/2521-683X/2023-2-57-67. Russian.
- Drozdou DN, Averin VS. Ispol’zovanie metodov faktornogo analiza dlya vyyavleniya obobshchayushchikh kharakteristik, pozvolyayushchikh otsenit’ variatsiyu srednei godovoi dozy vnutrennego oblucheniya [Use of methods of the factorial analysis for revealing the generalizing characteristics, allowing to estimate the variation of the average annual doze of the internal irradiation]. Health and Ecology Issues. 2008;(2):10–14. DOI: https://doi.org/10.51523/2708-6011.2008-5-2-2. Russian.
- Vlasova NG. Sravnitel’nyi analiz srednikh godovykh effektivnykh doz oblucheniya zhitelei naselennykh punktov Respubliki Belarus’ po dannym Katalogov doz-2015 i 2009 [Comparative analysis of average annual effective radiation doses to residents of populated areas of the Republic of Belarus according to the Dose Catalogues-2015 and 2009]. Proceedings of the Francisk Skorina Gomel State University. Series: Natural Sciences. 2017;1(102):20–24. Russian.
