A SOURCE OF LOCAL RADIATION POLLUTION OF NATURAL ENVIRONMENT

It was found that an underground nuclear explosion at a depth of 172 meters with a charge power of 0.3 kT, carried out with the aim of creating an underground reservoir for storing hydrocarbons, for a 53-year after-effect period is associated with a high content of technogenic radionuclides in the soil profile. With the indicated charge, power and depth in the thickness of Chegan clay, such nuclear explosions in the West Siberian and other similar regions are unacceptable. Studies have shown that nowadays it is unacceptable to use the territory within a radius of 500 m from the technological well as hayfields and pastures. The increased content of strontium-90 and cesium-137 from a depth of 40 cm is associated with their entry and accumulation in grass and woody vegetation