吕晨, 曾惠, 王佳, 舒为群. 我国水源水与饮用水微囊藻毒素-LR非致癌健康风险研究[J]. 环境与职业医学, 2018, 35(9): 841-848. DOI: 10.13213/j.cnki.jeom.2018.18295
引用本文: 吕晨, 曾惠, 王佳, 舒为群. 我国水源水与饮用水微囊藻毒素-LR非致癌健康风险研究[J]. 环境与职业医学, 2018, 35(9): 841-848. DOI: 10.13213/j.cnki.jeom.2018.18295
LÜ Chen, ZENG Hui, WANG Jia, SHU Wei-qun. Assessment on non-carcinogenic health risks of microcystin-LR in source water and drinking water in China[J]. Journal of Environmental and Occupational Medicine, 2018, 35(9): 841-848. DOI: 10.13213/j.cnki.jeom.2018.18295
Citation: LÜ Chen, ZENG Hui, WANG Jia, SHU Wei-qun. Assessment on non-carcinogenic health risks of microcystin-LR in source water and drinking water in China[J]. Journal of Environmental and Occupational Medicine, 2018, 35(9): 841-848. DOI: 10.13213/j.cnki.jeom.2018.18295

我国水源水与饮用水微囊藻毒素-LR非致癌健康风险研究

Assessment on non-carcinogenic health risks of microcystin-LR in source water and drinking water in China

  • 摘要: 目的 研究和比较我国水源水和饮用水微囊藻毒素-LR(MC-LR)污染导致的非致癌健康风险。

    方法 收集和整理国内外公开发表的我国水源水和饮用水中MC-LR质量浓度(简称为浓度)数据,采用美国环保署推荐的评价模型进行非致癌健康风险评价。

    结果 1998年至2016年间我国湖泊(水库)水中MC-LR浓度范围为ND~54.898 μg/L,HQ范围为0~50.996;江河水中MC-LR浓度范围为ND~1.360 μg/L,HQ范围为0~1.263;井水中MC-LR浓度范围为ND~0.780 μg/L,HQ范围为0~0.725;水厂出厂水中MC-LR浓度范围为ND~1.270μg/L,HQ范围为0~1.180;末梢水中MC-LR浓度范围为ND~0.860μg/L,HQ范围为0~0.799;瓶(桶)装水中MC-LR浓度范围为ND~0.795 μg/L,HQ范围为0~0.738。可见我国湖泊(水库)水、江河水和出厂水HQ最大值都大于1,可能存在MC-LR污染导致的非致癌健康风险;而井水、末梢水和瓶(桶)装水HQ范围都小于1,非致癌健康风险都在可接受范围内,但值得注意的是瓶(桶)装水中MC-LR非致癌健康风险水平并不比末梢水小。

    结论 需要加强我国湖泊(水库)水、江河水和出厂水中MC-LR污染监测和防护以及瓶(桶)装水中微囊藻毒素污染的健康风险研究。

     

    Abstract: Objective To compare and assess the non-carcinogenic health risks of microcystin-LR (MC-LR) in source water and drinking water in China.

    Methods We collected and collated data of reported MC-LR concentrations in source water and drinking water in China from publicly released domestic and foreign studies. Hazard quotient (HQ) recommended by the United States Environmental Protection Agency (EPA) was adopted to assess the non-carcinogenic risks of MC-LR by consuming contaminated source water and drinking water.

    Results The results showed that in China from 1998 to 2016 the concentrations of MC-LR in lake (reservoir) water ranged from ND to 54.898 μg/L, and the HQ of lake water was from 0 to 50.996; the concentrations of MC-LR in river water ranged from ND to 1.360 μg/L, and the HQ of river water was from 0 to 1.263; the concentrations of MC-LR in well water ranged from ND to 0.780 μg/L, and the HQ of well water was from 0 to 0.725; the concentrations of MC-LR in finished water of waterworks ranged from ND to 1.270μg/L, and the HQ of finished water was from 0 to 1.180; the concentrations of MC-LR in peripheral water ranged from ND to 0.860 μg/L, and the HQ of peripheral was from 0 to 0.799; the concentrations of MC-LR in bottled water ranged from ND to 0.795 μg/L, and the HQ of bottle water was from 0 to 0.738. The maximums of HQ for lake (reservoir) water, river water, and finished water in China were all greater than 1, indicating that MC-LR had non-carcinogenic health risks. The maximums of HQ for well water, peripheral water, and bottled water were less than 1, indicating that the related non-carcinogenic health risks of MC-LR were acceptable. However, the non-carcinogenic health risk of MC-LR in bottled water was not less than that in peripheral water.

    Conclusion We suggest strengthening the monitoring of MC-LR concentrations in lake (reservior) water, river water, and finished water of waterworks, and protecting people from MC-LR pollution. Moreover, we recommend that more studies on the health risk of MC-LR in bottled water should be conducted.

     

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