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[目的]了解青州市管网末梢水和二次供水的卫生质量,为保证我市居民饮用安全、合格的生活饮用水提供科学依据。[方法]2008和2011年在青州市随机抽取管网末梢水、二次供水点水样,按GB/T 5750-2006《生活饮用水标准检验方法》检测,按GB 5749-2006《生活饮用水卫生标准》进行评价。[结果]2008和2011年合计检测水样2 270份,合格的2 223份,合格率为97.93%。不同年份合格率的差异有有统计学意义(P<0.01)。[结论]居民生活饮用水合格率比较高,且2011年合格率高于2008年;二次供水的细菌学指标合格率低于管网末梢水。
[Objective] To understand the hygienic quality of peripheral water and secondary water supply of Qingzhou pipe network and provide a scientific basis for ensuring drinking safety and qualified drinking water in our city. [Method] The peripheral water of the pipe network and the secondary water supply point were randomly sampled in Qingzhou City in 2008 and 2011 and tested according to GB / T 5750-2006 “Standard Test Method for Domestic Drinking Water”. According to the standard of GB 5749-2006 “Domestic Drinking Water Health standards ”for evaluation. [Result] A total of 2 270 water samples were tested in 2008 and 2011, 2 223 were qualified, with a pass rate of 97.93%. Differences in pass rates in different years were statistically significant (P <0.01). [Conclusion] The drinking water passing rate of residents is relatively high, and the passing rate in 2011 is higher than that of 2008; the pass rate of bacteriological indexes of secondary water supply is lower than that of the water of the pipe network.