岳宣志, 李欢, 高昇, 张向楠, 李丽, 武多多, 张雯宇, 贾芯芮, 秦钰涵, 范耀春. 2021年内蒙古自治区农村饮用水砷、镉、铬、铅和汞健康风险评估[J]. 环境卫生学杂志, 2023, 13(10): 765-769, 777. DOI: 10.13421/j.cnki.hjwsxzz.2023.10.008
    引用本文: 岳宣志, 李欢, 高昇, 张向楠, 李丽, 武多多, 张雯宇, 贾芯芮, 秦钰涵, 范耀春. 2021年内蒙古自治区农村饮用水砷、镉、铬、铅和汞健康风险评估[J]. 环境卫生学杂志, 2023, 13(10): 765-769, 777. DOI: 10.13421/j.cnki.hjwsxzz.2023.10.008
    YUE Xuan-zhi, LI Huan, GAO Sheng, ZHANG Xiang-nan, LI Li, WU Duo-duo, ZHANG Wen-yu, JIA Xin-rui, QIN Yu-han, FAN Yao-chun. Health risk assessment of arsenic, cadmium, chromium, lead and mercury in rural drinking water in Inner Mongolia Autonomous Region, China, 2021[J]. Journal of Environmental Hygiene, 2023, 13(10): 765-769, 777. DOI: 10.13421/j.cnki.hjwsxzz.2023.10.008
    Citation: YUE Xuan-zhi, LI Huan, GAO Sheng, ZHANG Xiang-nan, LI Li, WU Duo-duo, ZHANG Wen-yu, JIA Xin-rui, QIN Yu-han, FAN Yao-chun. Health risk assessment of arsenic, cadmium, chromium, lead and mercury in rural drinking water in Inner Mongolia Autonomous Region, China, 2021[J]. Journal of Environmental Hygiene, 2023, 13(10): 765-769, 777. DOI: 10.13421/j.cnki.hjwsxzz.2023.10.008

    2021年内蒙古自治区农村饮用水砷、镉、铬、铅和汞健康风险评估

    Health risk assessment of arsenic, cadmium, chromium, lead and mercury in rural drinking water in Inner Mongolia Autonomous Region, China, 2021

    • 摘要:
      目的 评估2021年内蒙古自治区农村饮用水砷、镉、铬、铅和汞的健康风险。
      方法 对2021年内蒙古自治区农村5 044份饮用水数据进行分析, 采用《化学物质环境健康风险评估技术指南》推荐的健康风险评估"四步法"对砷、镉、铬、铅和汞进行风险评估。
      结果 2021年内蒙古自治区饮用水经口摄入的途径对成年人致癌风险: 铬(1.38 ×10-4)>砷(1.18×10-4)>镉(1.05×10-5)>铅(8.71×10-7)。非致癌风险: 砷(2.63×10-1)>铅(7.32×10-2)>镉(5.52×10-2)>铬(5.52×10-2)>汞(2.63×10-2)。2021年内蒙古自治区农村饮用水对成年人和儿童的健康风险主要暴露途径为经口摄入, 儿童的风险水平均高于成人。致癌风险较高的为铬(成人: 1.38 × 10-4, 儿童: 1.49 × 10-4)和砷(成人: 1.18 × 10-4, 儿童: 1.28 × 10-4), 超出美国环境保护局(US EPA)推荐的最大可接受风险; 非致癌风险水平均小于1, 非致癌风险较低。内蒙古不同地区的农村饮用水砷、镉、铬和铅的浓度和健康风险水平均为西部地区>中部地区>东部地区(P<0.05), 镉和铬的浓度和健康风险水平均为枯水期>丰水期(P<0.05), 砷、镉、铅的浓度和健康风险水平均为出厂水<末梢水(P<0.05)。
      结论 2021年内蒙古自治区农村地区饮用水中砷和铬的致癌风险高于US EPA推荐的最大可接受风险, 应加强当地水质监测与管理。

       

      Abstract:
      Objective To evaluate the health risks of arsenic, cadmium, chromium, lead and mercury in rural drinking water in Inner Mongolia Autonomous Region in 2021.
      Methods The data of 5 044 drinking water samples in rural areas of Inner Mongolia Autonomous Region in 2021 were analyzed, and the risk assessment of arsenic, cadmium, chromium, lead and mercury were evaluated using the "four-step method" recommended by the Technical Guide for Environmental Health Risk Assessment of Chemical Exposure.
      Results In 2021, chromium has the highest cancer risk(1.38×10-4) for adults through drinking, followed by arsenic(1.18×10-4), cadmium(1.05×10-5) and lead(8.71×10-7) in Inner Mongolia Autonomous Region. Arsenic has the highest non-carcinogenic risk(2.63×10-1), followed by lead(7.32×10-2), cadmium(5.52×10-2), chromium(5.52×10-2) and mercury(2.63×10-2).In 2021, the main exposure route of health risks of rural drinking water to adults and children in Inner Mongolia was oral intake, and the risk level of children was higher than that of adults. Chromium had a higher risk of cancer (adults: 1.38×10-4, children: 1.49×10-4) and arsenic (adult: 1.18×10-4, children: 1.28 × 10-4), exceeding the maximum acceptable risk recommended by the US EPA; The non carcinogenic risk level was less than 1, and the non-carcinogenic risk level was relatively low. The mass concentrations and health risk levels of arsenic, cadmium, chromium and lead varied statistically significantly in different areas, ranking as west>centre>east. There were statistically significant differences in the mass concentrations and health risk levels of cadmium and chromium in the wet season and dry season(P < 0.05), and both were higher in the dry season than in the wet season. The mass concentrations and health risk levels of arsenic, cadmium and lead were statistically significant in different water sample types(P < 0.05), with finished water < terminal water.
      Conclusion The carcinogenic risk of arsenic and chromium in drinking water in rural areas of Inner Mongolia Autonomous Region in 2021 was higher than the maximum acceptable risk recommended by US EPA. Local water quality monitoring and management should be strengthened.

       

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