Abstract: In this paper, the summary of environmental supervisory monitoring around operating NPP bases in national environmental radiation monitoring network during 2011—2015 period was introduced. The monitoring results showed that in NPP bases surroundings, no abnormality of real-time gamma dose rates caused by NPP bases operation was monitored; Artificial radionuclide activity concentration was normal in ambient environmental medium of Fuqing NPP base; The tritium concentration in part of the environmental medium around Qinshan NPP base, Dayawan NPP base, Yangjiang NPP base, Tianwan NPP base and Ningde NPP base was increased compared with the background level before the operation of NPP base; The carbon-14 concentration in few air samples around Hongyanhe NPP base was above the background level; Traces of gaseous radioactive iodine-131 in few air samples around Dayabay NPP base were detected; There were traces of Ag-110m in few oyster samples around Qinshan NPP base, Dayabay NPP base and Ningde NPP base. However,the evaluation results showed that the public individual annual effective dose caused by the operation of NPP bases was far below the dose constraints value stipulated by government.

Key words: nuclear power, monitoring, radiation, level