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目的通过分析河北省二次供水卫生监督管理情况及影响二次供水卫生水质的因素,了解和掌握河北省二次供水水质卫生状况,为改善二次供水卫生状况、政府部门制定卫生监督管理决策提供技术依据。方法监督检查河北省市和县共79个,其中11个设区市、68个县(县级市)的二次供水设施水质卫生监督管理情况,现场检测二次供水设施出水水质情况。每半年对421个二次供水设施出水水样采集、保存、检测和评价。结果监督检查的1 430个二次供水设施合格率为49.65%,现场快速检测出水水质合格率为49.79%。421个二次供水设施水质监测点842份水样,常规分析检测指标合格率为47.15%,二次供水四大类指标:微生物指标、毒理学指标、感官性状和一般化学指标、消毒剂指标综合评价合格率分别为90.86%、82.19%、95.13%和53.18%;非消毒剂和消毒剂综合评价合格率分别为73.87%、53.18%。结论河北省二次供水设施卫生监督管理存在的问题是水质自检不规范,消毒剂余量不足导致水质合格率低,存在卫生安全隐患。
Objective To understand and master the water quality and sanitation of secondary water supply in Hebei Province by analyzing the secondary health supervision and management of secondary water supply in Hebei Province and the factors influencing the secondary water supply and sanitation quality. To improve the sanitation status of secondary water supply, government departments formulate health supervision and management policies Technical basis. Methods To supervise and inspect the water quality and hygiene supervision and management of secondary water supply facilities in 79 cities and counties of Hebei Province, of which 11 districts and cities and 68 counties (county-level cities) were supervised and examined. The on-site water quality of the secondary water supply facilities was examined. 421 secondary water supply facilities were collected, stored, tested and evaluated every six months. Results The qualified rate of 1 430 secondary water supply facilities under supervision and inspection was 49.65%. The passing rate of water quality on the spot was 49.79%. 421 secondary water supply facilities 842 water samples of water quality monitoring points, routine analysis and detection indicators pass rate of 47.15%, secondary water supply four categories of indicators: microbial indicators, toxicological indicators, sensory traits and general chemical indicators, disinfectant indicators integrated The passing rate of evaluation was 90.86%, 82.19%, 95.13% and 53.18% respectively. The overall pass rates of non-disinfectants and disinfectants were 73.87% and 53.18% respectively. Conclusion The problems existing in the sanitary supervision and management of secondary water supply facilities in Hebei Province are that the self-inspection of water quality is not standardized, the qualified rate of water quality is low due to insufficient margin of disinfectant, which poses a health and safety hazard.