RESUMEN
Objective To carry out the gross alpha and gross beta radioactivity monitoring in Lixiating surface water in Daming Lake from 2014 to 2019, so as to understand the current situation of radioactive environmental quality of surface water in Daming Lake. Methods The water samples were collected at Lixiating site during the wet water (March to June) and dry water (September to December). After the pre-treatment process of evaporation, carbonization and ashing, the samples were measured by the ultra low background level α and β counter. Results During 2014 to 2019, the gross alpha activity in the surface water of Lixiating water in Daming Lake was 0.030-0.066 Bq/L, with an average of 0.048 Bq/L, and the gross beta activity was 0.085-0.126 Bq/L, with an average of 0.102 Bq/L. Conclusion The surface water of Lixiating in Daming Lake water was not contaminated by radionuclide and it was safe for public health.