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目的通过对2013—2014年北京市某区生活饮用水卫生应急事件监测情况的分析,全面掌握某区生活饮用水突发事件的发生情况,早期发现健康危害因素,为政府实施监管提供科学依据。方法对生活饮用水应急事件进行现场调查,并采集生活饮用水样品,将采集的水样依据GB/T 5750-2006《生活饮用水标准检验方法》进行检验分析;检验结果依据GB/T5749-2006《生活饮用水卫生标准》进行评价。结果 2013和2014年某区发生水投诉事件分别为31和29起。饮用水感官性状的改变是引起投诉的主要原因。2013和2014年某区生活饮用水投诉事件中自备井供水投诉事件比例分别为67.74%和62.07%。其次为2次供水。2013和2014年投诉的2次供水水样水质不合格率分别为42.86%和14.29%。2013和2014年投诉的自备井水水样水质不合格率分别为23.53%和19.51%。投诉事件监测的水样中主要不合格项目为细菌总数、浑浊度、亚硝酸盐和氨氮。结论北京市某区生活饮用水投诉事件主要发生在自备井水和2次供水的供水方式。自备井水和2次供水水质不合格率较高,需进一步加强日常的监管工作。
Objective By analyzing the monitoring situation of sanitary emergency in drinking water in a certain area of Beijing from 2013 to 2014, we can grasp the occurrence of emergencies of drinking water in a certain area and find out the factors of health hazard early so as to provide a scientific basis for the government to supervise. Methods On-the-spot investigation of emergency drinking water and collection of drinking water samples, the collected water samples were tested and analyzed according to GB / T 5750-2006 “Standard Test Method for Domestic Drinking Water”; the test results were based on GB / T5749-2006 “Drinking water health standards” for evaluation. Results In 2013 and 2014, there were 31 and 29 water complaint cases in a district. Changes in sensory traits of drinking water are the main causes of complaints. In 2013 and 2014, there were 67.74% and 62.07% complaints about self-prepared wells in drinking water complaints in a certain district. Followed by 2 times the water supply. In 2013 and 2014, the number of non-conformances of the two water samples of water supply was 42.86% and 14.29% respectively. In 2013 and 2014, the failure rates of self-provided water samples of well water were 23.53% and 19.51% respectively. The main unqualified items in the water samples monitored during the complaint were the total number of bacteria, turbidity, nitrite and ammonia nitrogen. Conclusion The drinking water complaints in a certain district of Beijing mainly occurred in the water supply ways of own well water and 2 water supply. Own well water and secondary water quality of the high failure rate, the need to further strengthen the daily regulatory work.