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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 water quality of municipal water supply and self-made wells in Shunyi District in 2011, and provide a scientific basis for improving the water quality of drinking water. Methods: Random sampling method was used to sample the drinking water in the urban areas and towns in Shunyi District. Sampling, storage, transportation and testing were carried out according to the method of Standard Test Method for Domestic Drinking Water (GB / 5750-2006) . Results: A total of 281 drinking water samples were collected, with a pass rate of 83.3% and municipal water supply of 184 pieces, with a pass rate of 84.8% and sensory traits and general chemical indicators exceeding the standard of 0.60% 97 cases, the pass rate of 80.4%, sensory traits and general chemical indicators failed rate of 1.78%, toxicological indicators failed rate of 0.46%. Conclusion: Compared with the municipal water supply, there is a potential safety hazard in the water quality of rural self-prepared wells. Corresponding measures should be taken to improve the quality of domestic drinking water and ensure the health of people in the whole district.