2010年北京市石景山区生活饮用水监测分析

目的监测与评价北京市石景山区生活饮用水水质卫生状况,掌握影响居民饮用水安全的主要因素,为进一步加强生活饮用水卫生安全管理提供科学依据。方法对2010年北京市石景山区生活饮用水的水源水、末梢水和二次供水按照国家标准进行采集、保存、评价和统计分析。结果共检测水样218件,合格191件,合格率88.1%。其中水源水、末梢水和二次供水的合格率分别为38.9%、88.3%、97.5%。不合格指标主要有总硬度、浑浊度、铁、锌和余氯。另外,丰水期和枯水期部分指标的检测结果差异有统计学意义。结论北京市石景山区生活饮用水水质总合格率较高,但水源水合格率较低,为进一步提高生活饮用水水质,应继续加大水源水的水质处理工艺。

Hygiene monitoring on drinking water in Shijingshan District of Beijing City in 2010

Objective] To monitor and evaluate the hygienic status of drinking water in Shijingshan District of Beijing City,to explore the main factors affecting the safety of drinking,and provide scientific evidence for further strengthening hygiene management of drinking water.Methods] The samples of source water,tap water and secondary water supply were collected,detected and evaluated in Shijingshan District of Beijing City in 2010 according to the national standards.Results] A total of 218 water samples were detected,191(88.1%)were qualified.The qualified rate of source water,tap water,and secondary water supply was 38.9%,88.3%,97.5% respectively.The unqualified items included total hardness,turbidity,iron,zinc and residual chlorine.Additionally,some indicators between wet and dry season were significantly different.Conclusion] The total qualified rate of drinking water in Shijingshan District of Beijing City is relatively high,but the qualified rate of source water is low.Water treatment process should be improved to improve the quality of drinking water.