【摘要】 目的了解二次供水设施对饮用水水质的影响程度。方法对二次供水设施进行配额抽样,研究不同单位类型、水箱材质、设施年龄对饮用水水质的影响。结果研究的水质指标都不同程度地受到二次供水设施的单位类型、水箱材质、设施年龄影响。结论二次供水的监管亟待加强。更多还原

【Abstract】 objective: To study influence from secondary water supply facilities to drinking water. Methods: Quota sampling the secondary water supply facilities, study the influences from different unit type, water tank material and facility age. Results and discussions: Different unit type, water tank material and facility age of secondary water supply facilities offered various degrees of influence to the studied water-quality indexes. Conclusion: Strengthening the force of supervision to secondary water supply is urgently needed.更多还原