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目的了解4·20地震对四川省绵阳市龙门乡饮用水卫生情况的影响,为灾后政府部门制定相应措施提供科学依据。方法采集2013年4月23日—5月7日龙门乡的水源水、集中供水站的出厂水和末梢水、安置点的净化水进行检测分析。结果共采集水样145份,总合格率为33.10%。不合格指标以浑浊度、总大肠菌群、大肠埃希菌和消毒剂余量为主。水源水、出厂水、末梢水和净化水的合格率分别为19.35%、36.84%、39.58%和62.50%。在采取相应措施后,出厂水和末梢水的合格率均上升到75.00%。结论龙门乡灾区饮用水水质在震后初期受到较大影响,震后及时采取有效对策和措施,可明显改善水质,对保障灾区群众饮水安全有重要意义。
Objective To understand the impact of the April 20 earthquake on the sanitary status of drinking water in Longmen Township, Mianyang City, Sichuan Province, and to provide a scientific basis for the government to formulate corresponding measures after the earthquake. Methods From April 23, 2013 to May 7, 2013, the source water of Longmen Township was collected, and the production and peripheral water of the centralized water supply station and the purified water of the resettlement sites were tested and analyzed. Results A total of 145 water samples were collected with a total pass rate of 33.10%. Unqualified indicators to turbidity, the total coliform bacteria, Escherichia coli and disinfectant remainder mainly. The pass rates of water source water, factory water, peripheral water and purified water were 19.35%, 36.84%, 39.58% and 62.50% respectively. After taking the corresponding measures, the passing rate of ex-factory water and peripheral water all rose to 75.00%. Conclusion The quality of drinking water in the affected area of Longmen Township was greatly affected by the earthquake. After the earthquake, effective measures and measures should be taken in time to improve the water quality significantly, which is of great significance to ensuring the safety of drinking water for the masses in disaster areas.