北京市顺义区2011年度生活饮用水末梢水水质监测结果分析

Analysis of quality surveillance results of potable peripheral water in Shunyi district of Beijing in 2011

目的:了解顺义区2011年度市政供水与自备井供水末梢水质状况,为改善生活饮用水的水质提供科学依据。方法:采用随机抽样的方法,对顺义区城区和乡镇的生活饮用水末梢水进行采样,按《生活饮用水标准检验方法(》GB/5750-2006)中的方法进行采样、保存、输送和检测。结果:本次共检测生活饮用水末梢水281件,合格率为83.3%,市政供水末梢水184件,合格率84.8%,感官性状和一般化学指标超标率为0.60%;自备井水末梢水97件,合格率80.4%,感官性状和一般化学指标不合格率为1.78%,毒理指标不合格率为0.46%。结论:相对于市政供水,农村自备井末梢水质还存在安全隐患,应采取相应措施,提高生活饮用水的质量,保障全区人民的健康。

Objective：To understand the peripheral water quality condition of municipal water supply and wells water supply in Shunyi district in 2011,and provide a scientific basis to improve the quality of drinking water.Methods： In accordance with ＂Standard examination methods for drinking water＂（GB/5750-2006）,the potable peripheral water samples randomly selected from townships and villages in Shunyi,were stored,transported and examined.Results： A total of 281 water samples were examined,the qualified rate was 83.3%.In 184 municipal water supply samples,the qualified rate was 84.8%,the over-limit rate of sensory properties and general chemical indicators was 0.60%,while in 97 wells water supply samples,the qualified rate was 80.4%,the unqualified rates of sensory properties and general chemical indicators and toxicology index were 1.78% and 0.46% respectively.Conclusion： Relative to the municipal water supply,peripheral water quality in wells of rural areas existed security risk,appropriate measures should be taken to improve the quality of drinking water to protect the health of the region′s people.