2018-2021年石岛湾核电站周围饮用水中总放射性水平分析  

Analysis of gross radioactivity levels in drinking water around Shidao Bay Nuclear Power Plant,2018-2021

作　　者：王新云[1] 张巍[1] 夏春冬[1] 柳怡[1] 张显鹏[1] WANG Xinyun;ZHANG Wei;XIA Chundong;LIU Yi;ZHANG Xianpeng(Shandong Center for Disease Control and Prevention,Institute for Testing and Evaluation of Public Health,Jinan 250014 China)

机构地区：[1]山东省疾病预防控制中心公共卫生检测评价所,山东济南250014

出　　处：《中国辐射卫生》2023年第4期408-412,共5页Chinese Journal of Radiological Health

基　　金：山东省疾病预防控制中心青年创新基金(QC-2022-08)。

摘　　要：目的了解石岛湾核电站运行前饮用水中总α、总β放射性水平。方法在石岛湾核电站周围30 km内设置10个采样点,2018—2021年间每年分别于枯、丰水期进行采样,依据《生活饮用水标准检验方法放射性指标》(GB/T5750.13—2006)进行实验室检测。结果2018—2021年间石岛湾核电站周围30 km内饮用水中的总α放射性范围约为0.004~0.420 Bq/L,未超出国家标准规定的总α指导值要求;2018—2021年总β放射性水平约为0.008~1.050 Bq/L,2018年距核电站4.7 km处的采样点中总β超过国家标准《生活饮用水卫生标准》(GB 5749—2006)指导值,扣除40K对总β放射性水平的影响,经实验室复测后在国家标准指导值以内。结论石岛湾核电站周围30 km内饮用水中排除40K对总β的影响,总α、总β放射性水平均在国家标准指导值以下。Objective To investigate the gross alpha and gross beta radioactivity levels in drinking water around Shidao Bay Nuclear Power Plant before its operation.Methods Ten sampling sites were set up within 30 km of Shidao Bay Nuclear Power Plant.From 2018 to 2021,samples were collected during the dry season and wet season each year and were tested in a laboratory according to Standard examination methods for drinking water—radiological parameters(GB/T 5750.13—2006).Results From 2018 to 2021,the gross alpha radioactivity in drinking water within 30 km of Shidao Bay Nuclear Power Plant was within the range of about 0.004-0.420 Bq/L,which does not exceed the guided gross alpha radioactivity specified in the National Standard;from 2018 to 2021,the gross beta radioactivity level was about 0.008-1.050 Bq/L.In 2018,the gross beta radioactivity at the sampling site 4.7 km from the Nuclear Power Plant exceeded the guided level specified in the National Standards for Drinking Water Quality(GB 5749—2006),but it fell within the guided level in a repeat laboratory test after deducting the effect of 40K on the gross beta radioactivity.Conclusion After deducting the effect of 40K on the gross beta radioactivity,the gross alpha and gross beta radioactivity levels in drinking water within 30 km of Shidao Bay Nuclear Power Plant are within the guided levels specified in the National Standards.

关 键 词：石岛湾核电站 饮用水 总α、总β放射性 

分 类 号：X591[环境科学与工程—环境工程]