Investigation of gross alpha & gross beta radioactivity in surface water of Lixiating in 2014—2019

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. 摘要： 目的 开展 2014—2019 年济南市大明湖历下亭地表水中总 α、总 β 放射性监测, 了解大明湖地表水放射性环 境质量现状。 方法 每年于丰水期 (3~6 月) 和枯水期 (9~12 月) 在历下亭点位采集水样, 经过蒸发、炭化、灰化等前 处理过程后, 制成样品源于低本底 α、β 计数器中测量。 结果 2014—2019 年大明湖历下亭地表水中总α放射性活度 为 0.030~0.066 Bq/L, 均值为 0.048 Bq/L, 总β放射性活度为0.085~0.126 Bq/L, 均值为 0.102 Bq/L。 结论 济南市大 明湖历下亭地表水未受到放射性核素污染, 对公众健康是安全的。