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目的了解农村集中式供水的卫生状况,为防止介水传染病的发生提供科学依据。方法于2011年7-11月,随机选择潍坊市684处农村集中式供水进行基本情况调查,对每处出厂水和末梢水采样检测。结果本市农村集中式供水以地下水为主,深层地下水设施占95.91%,完全处理的工程水质占2.78%,有消毒设施的供水单位仅占6.87%。抽检的1 368份水样,总合格率为35.82%,出厂水和末梢水水质合格率分别为38.45%和33.19%;微生物和硝酸盐超标较严重,其中菌落总数、总大肠菌群、硝酸盐氮和耐热大肠菌群的超标率分别为:45.54%、36.33%、23.25%和12.79%。结论本市农村集中式供水卫生状况较差,农民饮水存在卫生安全隐患。
Objective To understand the health status of centralized water supply in rural areas and provide a scientific basis for preventing the occurrence of water-borne infectious diseases. Methods From July to November 2011, 684 rural centralized water supply in Weifang City was randomly selected to conduct a survey on the basic conditions and samples of each factory water and peripheral water samples were collected. Results The centralized water supply in rural areas in this Municipality was mainly groundwater, accounting for 95.91% of deep groundwater facilities, 2.78% of water quality for complete treatment and only 6.87% of water supply units having disinfection facilities. The sampling rate of 1 368 samples was 35.82% with the passing rate of 38.45% and 33.19%, respectively. The passing rate of microorganisms and nitrate exceeded the standard. The total number of colonies, total coliforms and nitrate The over-rates of nitrogen and heat-resistant coliforms were 45.54%, 36.33%, 23.25% and 12.79%, respectively. Conclusion The situation of centralized water supply and sanitation in rural areas in this Municipality is poor, and there is a health and safety hazard for farmers drinking water.