Quantitative health risk assessment of microbial hazards from water sources for community and self-supply drinking water systems.
Quantitative health risk assessment of microbial hazards from water sources for community and self-supply drinking water systems.
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DOI：
10.1016/j.jhazmat.2023.133324
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发表时间：
2023-12
影响因子：
13.6
通讯作者：
Cheng Yan;Wei-di Wan;Rui-ning Wang;Tian-nuo Lai;Wajid Ali;Shan-shan He;Sai Liu;Xiang Li;Z. Nasir;F. Coulon
中科院分区：
文献类型：
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作者：
Cheng Yan;Wei-di Wan;Rui-ning Wang;Tian-nuo Lai;Wajid Ali;Shan-shan He;Sai Liu;Xiang Li;Z. Nasir;F. Coulon
在低收入和中等收入国家（LMIC），饮用水源（威尔斯和钻孔）通常含有大量的病原微生物，这可能对人类和环境健康构成重大风险。在这项研究中，定量微生物风险评估方法的基础上，现有的文献进行了评估和比较与不同年龄组使用各种饮用水供应系统的定量健康风险。结果表明，社区供应和自我供应模式表现出类似的风险水平。然而，与社区供水水源相比，自我供水水源始终显示出更高的风险。发现钻孔水是比井水更合适的选择，始终显示E的健康风险低5至8。大肠菌群和粪大肠菌群水平。敏感性分析进一步表明了优先减少E的重要性。井水中大肠菌群浓度和钻孔水中粪大肠菌群浓度。这项研究为量化暴露浓度和年龄组的影响提供了新的认识，揭示了它们如何影响环境健康风险。这些发现为参与水源管理和保护的利益相关者提供了宝贵的见解。
In low and medium income countries (LMIC) drinking water sources (wells and boreholes) often contain a high number of pathogenic microorganisms, that can pose significant human and environmental health risks. In this study, a quantitative microbial risk assessment approach based on existing literature was conducted to evaluate and compare the quantitative health risks associated with different age groups using various drinking water supply systems. Results showed that both community-supply and self-supply modes exhibit similar levels of risk. However, the self-supply water source consistently showed higher risks compared to the community-supply one. Borehole water was found to be a more suitable option than well water, consistently showing between 5 and 8 lower health risks forE. coliand fecal coliform levels, respectively. The sensitivity analysis further showed the importance of prioritizing the reduction ofE. coliconcentration in well water and fecal coliform concentration in borehole water. This study offers a fresh perception on quantifying the impact of exposure concentration and age groups, shedding light on how they affect environmental health risks. These findings provide valuable insights for stakeholders involved in the management and protection of water sources.