Regulation principles for NPP radionuclide releases into atmosphere

The present day views on the permissible levels of atmosphere contamination by NPP radioactive releases are observed. Methods for determination of the NPP effluents permissible concentrations are described for all their possible paths to people irradiation within time intervals. Calculation techniques for maximum permissible releases (MPR) are considered for different type atmosphere contamination sources as well as those sources classification. Accounting for the atmosphere background contamination is also described in connection with MPR determination. A system of regulation criteria and measures has been realized with the objective of the atmosphere protection against contamination