论文部分内容阅读
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。
Objective To monitor and evaluate the sanitary status of drinking water in Shijingshan District of Beijing and to master the main factors affecting the safety of drinking water for residents and provide a scientific basis for further strengthening the sanitary safety management of drinking water. Methods The water source, peripheral water and secondary water supply of domestic drinking water in Shijingshan District of Beijing were collected, preserved, evaluated and statistically analyzed in accordance with national standards. Results A total of 218 water samples were tested, of which 191 were qualified with a pass rate of 88.1%. The qualified rate of water source, peripheral water and secondary water supply were 38.9%, 88.3% and 97.5% respectively. The main failure indicators are total hardness, turbidity, iron, zinc and chlorine. In addition, the detection results of some indicators in the wet season and dry season have significant differences. Conclusion The total qualified rate of drinking water in Shijingshan District of Beijing is higher, but the qualified rate of source water is lower. In order to further improve the quality of drinking water, the treatment of water quality of source water should be continued.