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目的:了解瓯海区居民饮用水的水质情况,为提高饮用水卫生管理提供科学的数据。方法:水样的采集、保存、运输和检验按《生活饮用水卫生标准检验方法》(GB 5750-2006)执行;水质检验结果评价按《生活饮用水卫生标准》(GB 5749-2006)执行。结果:大型集中式供水水样合格率为83.3%;农村饮用水工程小型集中式供水合格率为28.8%;总大肠菌群、耐热大肠菌群、浑浊度、pH、Mn、Fe、Cd等项目出现不同程度的不合格。结论:农村小型集中式供水末梢水水质情况偏差,不合格率尤为严重,应引起有关部门重视。
Objective: To understand the water quality of drinking water in Ouhai district and to provide scientific data for improving the sanitary management of drinking water. Methods: The collection, storage, transportation and inspection of water samples shall be carried out in accordance with the “Standard Test Method for Drinking Water Quality” (GB 5750-2006); the evaluation of water quality test results shall be carried out in accordance with the Standard for Drinking Water Quality (GB 5749-2006). Results: The qualified rate of large-scale centralized water supply was 83.3%. The passing rate of small centralized water supply in rural drinking water project was 28.8%. The total coliform, heat-resistant coliform bacteria, turbidity, pH, Mn, Fe and Cd etc. The project appeared to varying degrees of failure. Conclusion: The water quality of the small-scale centralized water supply in rural areas is biased, with the unqualified rate being particularly serious, which should be paid more attention by relevant departments.