论文部分内容阅读
目的了解唐山市集中式供水单位的卫生现况。方法采用现场卫生学调查方法,对唐山市(区)、县(区)集中式供水单位进行现场监督检查。包括水源水类型、供水人口、水处理方式与消毒、水质检测等情况。结果市(区)供水人口以市政集中供水为主(94.99%),各县区则以农村集中供水为主,市政集中供水为辅,分别占69.58%和26.01%。;市政集中供水水源处理工艺合理,水质100%消毒,水质监测合格率达89.2%;以地下水为水源的市自建设施供水水质监测合格率仅为60.9%,不合格指标主要为消毒剂、菌落总数、总大肠菌群、耐热大肠菌群;农村集中供水水质最差,99.9%的单位未采取任何消毒处理方式,水源缺乏有效的卫生防护及消毒设施,水质监测合格率低,菌落总数、总大肠菌群、耐热大肠菌群检出率高,提示唐山市农村饮用井水的卫生状况堪忧。结论应加强农村、市自建设施饮用水卫生监督。
Objective To understand the health status of centralized water supply units in Tangshan City. Methods On-the-spot supervision and inspection of centralized water supply units in Tangshan (district) and county (district) were conducted by field health survey. Including water source type, water supply population, water treatment and disinfection, water quality testing and so on. Results The population of municipal (district) water supply was mainly municipal centralized water supply (94.99%), while in all counties, the rural centralized water supply was the mainstay, supplemented by municipal centralized water supply accounting for 69.58% and 26.01% respectively. ; Municipal centralized water supply treatment process is reasonable, 100% disinfection of water quality, water quality monitoring pass rate of 89.2%; groundwater as the city’s self-built facilities water quality monitoring of pass rate was only 60.9%, the main failure indicators disinfectant, colony Total coliform bacteria, heat-resistant coliform; the worst water quality of centralized water supply in rural areas, 99.9% of the units did not take any disinfection, water lack of effective health protection and disinfection facilities, water quality monitoring pass rate is low, the total number of colonies, Total coliform bacteria, high detection rate of heat-resistant coliform bacteria, suggesting that drinking water in rural areas in Tangshan Sanitary situation worrying. Conclusion Rural and municipal self-built facilities should be strengthened their sanitary supervision of drinking water.