中国七大地理区域饮用水的总α和总β测量值及相关癌症风险。
Gross alpha and beta measurements in drinkable water from seven major geographical regions of China and the associated cancer risks.
机构信息
Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Sino-Danish college, University of Chinese Academy of Sciences, Beijing 100190, China; Department of Bioscience, Aarhus University, Vejlsovej 25, PO BOX 314, Silkeborg, Denmark.
Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Mathematical Sciences, Tsinghua University, 100084, China.
出版信息
Ecotoxicol Environ Saf. 2021 Jan 15;208:111728. doi: 10.1016/j.ecoenv.2020.111728. Epub 2020 Dec 11.
In this study, human health risk derived from radioactive pollution in drinking water of China was assessed based on gross alpha and beta. Considering the presence of numerous data under the detection limits, the left-censored handling methods were employed to deal with the non-detected values in gross alpha and beta radioactive concentrations. Results show that concentrations of gross alpha and beta range from 4.98 × 10 Bq/L to 0.49 Bq/L with a mean value of 0.029 Bq/L and 5.00 × 10 Bq/L to 1.26 Bq/L with a mean value of 0.091 Bq/L, respectively. With the average effective dose being 1.41 × 10 mSv/y, the annual cancer risk due to radioactive pollution in Chinese drinking water is 7.75 × 10 /y. This study aimed to provide an easier method to quantify the radioactive pollution in drinking water and give a scientific basis for making policy decisions on radioactive pollution management.
本研究基于总α和总β放射性对中国饮用水中的放射性污染对人体健康造成的风险进行了评估。考虑到存在大量低于检测限的数据，本研究采用了左删失处理方法来处理总α和总β放射性浓度中的未检出值。结果表明，总α和总β浓度的范围分别为 4.98×10 Bq/L 至 0.49 Bq/L，平均值为 0.029 Bq/L 和 5.00×10 Bq/L 至 1.26 Bq/L，平均值为 0.091 Bq/L。平均有效剂量为 1.41×10 mSv/y，因此中国饮用水中放射性污染导致的年度癌症风险为 7.75×10 /y。本研究旨在提供一种更简便的方法来量化饮用水中的放射性污染，并为放射性污染管理政策决策提供科学依据。
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