Assessing factors of E. coli contamination of household drinking water in suburban and rural Laos and Thailand
Assessing factors of E. coli contamination of household drinking water in suburban and rural Laos and Thailand
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老挝和泰国城郊和农村家庭饮用水大肠杆菌污染评估因素
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
R. Seidu
中科院分区：
文献类型：
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作者：
Nanthasane Vannavong;H. Overgaard;T. Chareonviriyaphap;N. Dada;R. Rangsin;A. Sibounhom;T. Stenström;R. Seidu
如果管理不当，饮用水 (DW) 可能成为疾病传播的途径。该研究评估了不同因素对老挝和泰国郊区和农村家庭储水容器中水里大肠杆菌数量的影响。与泰国相比，老挝 DW 中的大肠杆菌浓度更高，特别是在没有厕所的家庭（老挝）和农村而不是郊区村庄。在老挝郊区，房屋材料、储存容器类型和缺乏厕所与饮用水的大肠杆菌污染显着相关，而在老挝农村，相应的显着因素是雨水、带盖的容器和缺乏厕所。在泰国郊区，雨水、储存容器类型和容器清洁频率与水污染显着相关，而房屋材料、人工收集的雨水和容器清洁频率与泰国农村的污染相关。在本研究中，社会人口特征与 DW 的大肠杆菌污染关系较小。处理家庭储存的水（例如煮沸）、定期清洁雨罐以及提供家庭厕所，尤其是在老挝，可以防止大肠杆菌污染饮用水。
Drinking water (DW) can serve as a route for disease transmission if not properly managed. The study assessed the effect of different factors on Escherichia coli quantities in DW in household water storage containers in suburban and rural villages in Laos and Thailand. Higher E. coli concentrations in DW were found in Laos compared to Thailand, especially in households without toilets (in Laos) and in rural rather than in suburban villages. In suburban Laos, house material, storage container types and lack of toilets were significantly associated with E. coli contamination of DW, whereas in rural Laos, corresponding significant factors were rain-fed water, containers with lids and lack of toilets. In suburban Thailand, rain-fed water, storage container types and container cleaning frequency were significantly associated with DW contamination, while house materials, manually collected rainwater and container cleaning frequency were associated with contamination in rural Thailand. Socio-demographic characteristics were less associated with E. coli contamination of DW in this study. Treatment of household stored water (e.g. boiling), regular cleaning of rain jars as well as the provision of household toilets, especially in Laos, can provide barriers against E. coli contamination of DW.