论文部分内容阅读
目的:掌握农村饮用水水质及经水传播疾病动态变化,探讨新农村集中式供水一体化管理策略。方法:按照《中国农村饮用水与环境卫生现状调查方案》,设定23个水质采样点,于枯水期(3月)和丰水期(8月)进行水样采集、检验和评价。结果:农村人口中使用集中式供水的占99.75%,全市农村集中式供水综合评价合格率为55.8%。其中,枯水期合格率为63.4%,丰水期合格率为47.5%。枯水期水样164份,细菌总数合格率为95.1%,总大肠菌群合格率为96.2%,耐热大肠菌群合格率为49.0%,游离性余氯合格率为21.9%。丰水期水样164份,细菌总数合格率为92.5%,总大肠菌群合格率为96.5%,耐热大肠菌群合格率39.5%,游离性余氯合格率32.5%。结论:我市农村生活饮用水存在安全隐患,亟待改善;消毒不到位是主要问题。
Objective: To master the dynamic changes of drinking water quality and waterborne diseases in rural areas and discuss the integrated management strategy of centralized water supply in new rural areas. Methods: According to the “Survey of Current Status of Drinking Water and Sanitation in Rural China,” 23 water quality sampling points were set up, and water samples were collected, tested and evaluated during the dry season (March) and wet season (August). Results: 99.75% of the rural population used centralized water supply, and the qualified rate of rural centralized water supply in the city was 55.8%. Among them, the passing rate of dry season was 63.4%, wet season pass rate of 47.5%. The water samples in the dry season were 164 samples, the total bacterial pass rate was 95.1%, the total coliform pass rate was 96.2%, the heat-resistant coliform bacteria pass rate was 49.0% and the free residual chlorine pass rate was 21.9%. During the wet season, 164 samples were collected, the total bacterial pass rate was 92.5%, the total coliform pass rate was 96.5%, the heat-resistant coliform bacteria pass rate was 39.5% and the free residual chlorine pass rate was 32.5%. Conclusion: There is a potential safety hazard in rural drinking water in our city and it is urgent to improve. Inadequate disinfection is the main problem.