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[目的]了解大连市居民饮用水卫生状况,促进饮水质量的改善。[方法]对2007年大连市集中式供水单位进厂水、出厂水和末梢水样检测结果进行分析。[结果]共检测水样4067份,超标的68份,检测指标超标率为1.67%。其中,二次供水为6.49%,自备水源末梢水为6.11%,市政进厂水为0.56%、末梢水为1.46%。全部水样中,余氯超标的27份,细菌总数超标的20份,铁超标的9份,大肠菌群超标的6份,锰超标的4份,浑浊度超标的2份。[结论]大连市城区生活饮用水水质总体较好,但微生物指标存在问题。
[Objective] To understand the health status of drinking water in Dalian residents and promote the improvement of drinking water quality. [Method] The test results of water samples in the centralized water supply units of Dalian City in 2007, factory water and terminal water samples were analyzed. [Result] A total of 4067 water samples were tested, exceeding the standard of 68 samples, with a detection index exceeding the standard of 1.67%. Among them, the secondary water supply was 6.49%, 6.11% of the self-provided water, 0.56% of municipal water and 1.46% of peripheral water. In all water samples, 27 were excessive chlorine, 20 bacteria exceeded the standard, 9 iron exceeded, coliform exceeded 6, manganese exceeded 4, turbidity 2. [Conclusion] The quality of drinking water in urban area of Dalian is generally good, but there are some problems in the indicators of microorganisms.