Abstract

The article presents the results of radiometric measurements of various indicators for objects at uranium mined-out sites before their reclamation: specific activity of natural radionuclides, total effective activity, specific alpha activity, pH value of water extract, exposure dose rate of gamma radiation, equivalent equilibrium volumetric activity of radon, content of long-lived radioactive aerosols in the air, and density of radon molasses. The results were compared with the regulatory requirements established for both the population and personnel. The article shows that the radiation indicators at a man-made object differ from the background values for natural objects, i.e., uranium mining is a source of radioactive pollution of the environmen.

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