秦山核电站二期扩建工程运行后周围饮用水总放射性水平调查  

Investigation on total radioactivity in drinking water following operation of the second phase expansion project at Qinshan Nuclear Power Plant

作　　者：周磊 曹艺耀[1] 任鸿 王鹏 邹华[1] 俞顺飞[1] 赵尧贤[1] 宣志强[1] 赖忠俊 张东霞 Zhou Lei;Cao Yiyao;Ren Hong;Wang Peng;Zou Hua;Yu Shunfei;Zhao Yaoxian;Xuan Zhiqiang;Lai Zhongjun;Zhang Dongxia(Zhejiang Province Center for Disease Control and Prevention,Hangzhou 310051,China)

机构地区：[1]浙江省疾病预防控制中心,杭州310051

出　　处：《中华放射医学与防护杂志》2023年第12期1003-1009,共7页Chinese Journal of Radiological Medicine and Protection

基　　金：浙江省卫生健康科技计划(2021KY613、2022RC120、2022KY130、2022KY132、2023KY643);浙南放射医学与核技术应用研究院开放课题(ZFY-2021-K-003、ZFY-2022-K-001,ZFY-2022-K-006)。

摘　　要：目的调查分析秦山核电站二期扩建工程正式投入运行后周围饮用水中的总放射性水平及变化趋势。方法2010—2022年,每年分别在丰水期(5月)和枯水期(10月)采集秦山核电站周围30 km内的水源水、出厂水和末梢水,测定分析饮用水中总α、总β放射性活度浓度,并与国内不同核电站周围饮用水、无核电站地区周围饮用水总放射性水平进行比较。结果水源水总α、总β放射性活度浓度均值分别为(0.021±0.019)和(0.204±0.058)Bq/L,出厂水总α、总β放射性活度浓度均值分别为(0.010±0.005)和(0.185±0.056)Bq/L,末梢水总α、总β放射性活度浓度均值分别为(0.012±0.007)和(0.170±0.058)Bq/L,均低于《生活饮用水卫生标准》规定的限值,3类水体在丰水期和枯水期监测结果差异均无统计学意义(P>0.05),与国内不同核电站周围饮用水以及无核电站地区周围饮用水总放射性水平接近。结论二期扩建工程正式投入运行后,秦山核电站周围饮用水中总α、总β放射性水平处于本底水平且趋势平稳,低于国家标准指导水平。Objective To investigate and analyze the level of the gross radioactivity,and its variation trend,in surrounding drinking water since the second phase expansion project at Qinshan Nuclear Power Plant was officially put into operation.Methods From 2010 to 2022,the source water,factory water and tap water within 30 km of Qinshan Nuclear Power Plant were collected in the flood season(May)and dry period(October)every year.The totalαand totalβradioactivity concentrations in drinking water was measured and analyzed.The levels of total radioactivity in drinking water around different nuclear power plants in China and around non-nuclear power plant areas was compared.Results The mean radioactivity concentrations of totalαand totalβwere(0.021±0.019)and(0.204±0.058)Bq/L in source water,(0.010±0.005)and(0.185±0.056)Bq/L in factory water,and(0.012±0.007)and(0.170±0.058)Bq/L in tap water,respectively,all lower than the limits stipulated in the Sanitary Standards for Drinking Water.There were no significant differences in the monitoring result of betweem the three types of water samples both in the flood and dry periods(P>0.05).The total radioactivity level in drinking water around Qinshan Nuclear Power Plant site was close to that in drinking water around different nuclear power plants in China and around areas without nuclear power plants.Conclusions Following the second phase of the expansion project officially being put into operation,the totalαandβradioactivity level in drinking water around the Qinshan Nuclear Power Plant has been in a stable trend and lower than the guidance level given in national standard.

关 键 词：秦山核电站 饮用水 总α 总β 放射性水平 

分 类 号：R144[医药卫生—公共卫生与预防医学]