2009年徐州市区二次供水卫生状况调查

[目的]了解徐州市区二次供水卫生状况。[方法]按照《江苏省2009年生活饮用水卫生重点监督检查工作实施方案》,使用全省统一的调查表和统计方法,对市区二次供水单位全面调查。[结果]市区共约450个蓄水式二次供水单位,其中,二次供水细菌指标平均合格率为90.29%,化学指标平均合格率为97.57%。3.20%的蓄水池管理责任单位不明晰,清洗消毒等管理制度不健全。18.84%的二次供水单位未能保证蓄水池每年清洗1次。[结论]二次供水水质合格率有了明显提高。设计不合理的蓄水池和管理疏漏仍然是影响二次供水水质的主要因素。应当加强卫生监督,采取综合措施,保障二次供水卫生安全。

Hygienic Status of Secondary Water Supply and Management Measures in Xuzhou City in 2009

[Objective]To understand hygienic status of secondary water supply in urban district of Xuzhou city.[Methods]Investigation on hygienic status of second water supply units was conducted according to ＂Program of supervision and inspection of drinking water hygiene in Jiangsu province in 2009＂ with unified survey questionnaire and statistics method.[Results]Of the 450 secondary water supply units investigated,the average qualified rate of secondary water supply for bacterial index was 90.29%.While the average qualified rate for chemical index was 97.57%.Management responsibility was not clear in 3.20% of the units,and management system of cleaning and disinfection was not perfect.18.84% of these units cannot clean the water tank once a year.[Conclusion]The qualified rate of the water quality from secondary water supply had obviously been improved.Unreasonable design of reservoir and oversight in management were still the main factors that influence the quality of the water from secondary water supply.Health supervision and inspection must be strengthened,comprehensive management measures must be taken to ensure drinking water safety from secondary water supply.