[Ecologic safety problems on industrial enterprises of Kolsky Transpolar area].

The authors presented results of ecologic and hygienic studies conducted in Kolsky nuclear power station area (Murmansk region). The studies found a trend to accumulation of summarized specific radioactivity and radionuclides of various origin in natural objects (woody plants, snow). Threshold concentrations of radionuclides in the studied objects appeared to be within the limits of normal radiation background.