Affiliation:
1. N. Laverov Federal Center for Integrated Arctic Research of the UB RAS
Abstract
The article examines patterns of spatial distribution of 137Cs and natural radionuclides 226Ra, 232Th, 40K in the upper (0—5 cm) layer of soils in the main functional zones of the city of Polyarnye Zori. The analysis of the general gamma activity of the territory, using RS-700 mobile gamma spectrometric complex, showed, three local anomalies of increased gamma radiation, which were confined to high-rise buildings within the city. In undisturbed peat soils in the area of the Kola Nuclear Power Plant and in the area of urban forests and parks, the maximum specific activity of technogenic 137Cs was 29.5 and 28.8 Bq/kg, respectively. In other functional zones of the city, the activity of 137Cs was 5 times less. According to the results of the correlation analysis, the technogenic 137Cs has a moderate relationship (on the Chaddock scale) with the 45 and 500 µm fraction. 232Th has a high affinity with 226Ra, and 40K with 232Th, which are statistically significant results when taking P-Value into account. It can be assumed that natural radionuclides 232Th, 40K, 226Ra have a moderate association with the 1 mm fraction due to the presence of particles of this size in the upper soil layer. There is a moderate relationship between 232Th and 40K.
Reference11 articles.
1. Воробьева Т. А., Евсеев А. В., Кузьменкова Н. В. Радиогеохимические исследования состояния ландшафтов Кольского полуострова // Арктика: экология и экономика. 2017. № 2 (26). С. 17—26. DOI: 10.25283/2223-4594-2017-2-17-26, Vorobyeva T. A., Evseev A. V., Kuzmenkova N. V. Radiogeochemical studies of the state of the landscapes of the Kola Peninsula. Arctic: Ecology and Economy, 2017, No. 2 (26), pp. 17—26. (in Russian)
2. Карта градостроительного зонирования г. Полярные Зори. 2018. URL: http://www.pz-city.ru/index.php/pravila-zemlepolzovaniya-i-zastrojki/62-gradostroitelstvo/945-karty-gradostroitelnogo-zonirovaniya (дата обращения: 25.09.2023)., Urban zoning map of Polyarnye Zori. http://www.pz-city.ru/index.php/pravila-zemlepolzovaniya-i-zastrojki/62-gradostroitelstvo/945-karty-gradostroitelnogo-zonirovaniya (in Russian)
3. Кизеев А. Н., Манахов Д. В., Силкин К. Ю., Ушамова С. Ф., Попова М. Б. Состояние почвенно-растительного покрова в 30-км зоне Кольской атомной электростанции // Наука и бизнес: пути развития. 2018. № 4 (82). С. 199—205., Kizeyev A. N., Manakhov D. V., Silkin K. Yu., Ushamova S. F., Popova M. B. Soil and vegetation cover in the 30-km zone of the Kola nuclear power plant. Science and business: ways of development, 2018, No. 4 (82), pp. 199—205. (in Russian)
4. Кряучюнас В. В., Кузнецова И. А., Котова Е. И, Игловский С. А., Мироненко К. А., Суханов С. Г. Содержание и особенности распределения естественных и техногенных радионуклидов в почвах малого арктического города // Экология человека. 2020. № 5. С. 11—20. DOI: 10.33396/1728-0869-2020-5-11-20, Kryauchyunas V. V., Kuznetsova I. A., Kotova E. I., Iglovsky S. A., Mironenko K. A., Sukhanov S. G. Content and features of the distribution of natural and technogenic radionuclides in the soils of a small Arctic city. Journal Human Ecology, 2020, No. 5, pp. 11—20. (in Russian)
5. Мелентьев Г. Б. Естественная радиоактивность редкометалльно-специализированного минерального сырья и урбанизированных территорий Карело-Кольского региона как фактор их радиоэкологической оценки // Труды Карельского научного центра РАН. 2021. № 2. С. 27—43. DOI: 10.17076/geo1284, Melentiev G. B. Natural radioactivity of rare-metal specialized mineral raw materials and urbanized territories of the Karelian-Kola region as a factor in their radioecological assessment. Proc. KarRC RAS, 2021, No. 2, pp. 27—43. (in Russian)