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目的了解大连市城市生活用水水质情况,为加强生活饮用水的卫生管理提供科学依据。方法按照国家颁布的《生活饮用水卫生标准》(GB 5749-2006),采集大连市城市不同水质的生活饮用水,并按照《生活饮用水标准检验方法》(GBT 5750-2006)进行检测。结果 2012年度共采集6个市政水厂、出厂水、20个末梢水、3个自备水源和10个二次供水监测点。出厂水合格率为100.00%。监测结果表明大连市政供水出厂水完全符合《生活饮用水卫生标准》要求。监测80个市政末梢水,采集80份水样,市政末梢水合格率为85.00%;监测40个高层建筑二次供水的40份水样,合格率为90.00%;监测3个自备水源的12份出厂水、12份末梢水,自备水源出厂水合格率为66.67%。结论监测结果发现大连市城市生活饮用水水质总体情况良好,居民可以放心使用。
Objective To understand the quality of urban domestic water in Dalian and to provide a scientific basis for strengthening the sanitary management of domestic drinking water. Methods According to the Standard of Drinking Water Quality (GB 5749-2006) promulgated by the State, the drinking water of different water quality in Dalian City was collected and tested according to the Standard Test Method for Domestic Drinking Water (GBT 5750-2006). Results In 2012, 6 municipal waterworks, factory water, 20 peripheral water, 3 self-contained water sources and 10 secondary water supply monitoring points were collected. Factory water pass rate of 100.00%. Monitoring results show that the municipal water supply water in full compliance with “drinking water health standards” requirements. Monitoring 80 municipal water, collecting 80 samples of water, the municipal end of qualified rate of 85.00% of water; monitoring 40 high-rise buildings 40 secondary water supply with a pass rate of 90.00%; monitoring of 3 owned 12 A portion of factory water, 12 parts of peripheral water, self-owned water source factory water pass rate was 66.67%. Conclusion The monitoring results showed that the quality of urban drinking water in Dalian is generally good and residents can feel comfortable using it.