Archives2022Vol. 62, № 6pp. 650–659

Article

Dynamics of the Radioecological Situation in the Observation Area of FSUE “Mayak Production Association”

Pavlova N. N., Kryshev I. I., and Kryshev A. I.

Research and Production Association “Typhoon”, Obninsk, Russia

Abstract

Based on the monitoring data and calculation of the integral indicator of pollution of the components of the natural environment, the analysis of the radioecological situation in the observation area of FSUE «Mayak Production Association», including the territory of the East-Ural radioactive trace, was carried out. The control levels of radionuclides in atmospheric air, soil and surface waters were assessed on the basis of environmental criteria, taking into account the specifics of radioactive contamination of the territory in accordance with the Recommendations of Roshydromet. To assess the control levels of radionuclides in the components of the natural environment, elk (Alces alces) was identified as a critical organism of the terrestrial biota, and the bottom fish ide (Leuciscus idus) was identified as an aquatic biota. The long-term dynamics of the integral indicator of pollution with technogenic radionuclides (90Sr, 137Cs, 239Pu) in the components of the natural environment is presented. The analysis of the radiation situation did not reveal an excess of the environmentally safe level of biota irradiation for the integral indicator of pollution of the components of the natural environment in the observation area of the enterprise. For a modern assessment of the radioecological situation in the area of the location of FSUE «Mayak Production Association», it is necessary to take into account the radioactive contamination of the territory associated with the past activities of the enterprise.

Keywords

Radionuclides, biota, radioecological situation, monitoring, long-term dynamics, the East-Ural radioactive trace, control level, atmospheric air, soil, surface waters, integral pollution indicator

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