Abstract: It is easily resulted in performance confusion problem with discharge limit value and public annual dose doesn't match under the Regulation for Environmental Radiation Protection of Nuclear Power Plant (GB 6249—2011) for Nuclear Power Facility (Plant) monitoring. Because of its contents in table 1 only gives discharge limit value indiscriminating specific nuclide in particle and iodine type. To solve this problem, the author suggests to discriminate specific nuclide and with monitoring focus on key nuclides as major dose contributor. According to the IAEA No.19 safety report, the author works out the important nuclides in particle and iodine type in NPP airborne radioactive effluents.

Key words: airborne radioactive effluents, annual dose, effluents monitoring, dose conversion factor