| 2016—2020年四川省地级市(州)饮用水源地总α、总β放射性水平及健康风险评估 |
| Total α and Total β Radioactivity Levels and Health Risk Assessment of Drinking Water Source in Prefecture-Level Cities (Prefectures) of Sichuan Province from 2016 to 2020 |
| 投稿时间：2022-06-13 修订日期：2023-05-29 |
| DOI：10.19316/j.issn.1002-6002.2023.06.23 |
| 中文关键词: 总α放射性 总β放射性 饮用水源地 待积有效剂量 健康风险 |
| 英文关键词:total α activity total β activity drinking water source pending effective dose health risks |
| 基金项目: |
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| 通讯作者:王亮* 四川省辐射环境管理监测中心站, 四川 成都 611139 |
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| 中文摘要: |
| 为了解四川省各地级市(州)饮用水源地的放射性水平,评价其水源地辐射水平的安全性,于2016—2020年对全省各地级市(州)饮用水源地进行布点、采样,分析水中总α、总β的放射性水平,利用健康风险模型对居民的健康风险进行评估。结果显示:各地级市(州)饮用水源地的总α、总β放射性浓度范围分别为0.008~0.094、0.011~0.190 Bq/L,不同年度、不同水源地、不同水源地类型的总α和总β放射性水平间比较,差异均无统计学意义(P>0.05);不同水期的总α、总β放射性水平的差异有统计学意义(P<0.05),总α和总β放射性对各年龄段居民的总致癌风险均低于WHO和ICRP发布的最严格控制限值。该次调查显示,四川省21个地级市(州)饮用水源地的总α和总β放射性处于安全水平,各年龄组的健康风险都是处于可接受的范围内。 |
| 英文摘要: |
| Objective to investigate the radioactivity level of drinking water sources in prefecture-level cities (prefectures) of Sichuan Province and evaluate the safety of radiation level in drinking water sources.Methods From 2016 to 2020,the drinking water sources of prefecture-level cities (prefectures) were distributed and sampled,and the total α and total β radioactivity levels in the water were analyzed,and the health risk model was used to assess the health risk of residents.Results The concentrations of total α and total β in drinking water sources of prefectures were 0.008-0.094 Bq/L and 0.011-0.190 Bq/L,respectively.The levels of total α and total β were compared in different years,different water sources and different types of water sources.There was no statistical significance (P>0.05).There were statistically significant differences in total α and total β radioactivity levels in different water periods (P<0.05).The total carcinogenic risk of total α and total β radioactivity for residents of all ages was lower than the strictest control limits published by WHO and ICRP.Conclusion The total α and total β radioactivity levels of drinking water sources in 21 prefecture-level cities (prefectures) of Sichuan Province are at safe levels,and the health risks to all age groups are within the acceptable range. |
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