【作者】 张宏群； 汤权； 戴寿桂；

【机构】 盐城市疾病预防控制中心；

【摘要】 目的了解盐城市农村生活饮用水卫生现状。方法 2010年1-10月,按照《2010年盐城市农村饮用水卫生监测方案》调查盐城市9个县(市、区)农村饮用水集中供水单位水质卫生现况。结果盐城市农村饮用水水质合格率为57.92%,主要不合格指标有氯化物(88.02%)、细菌指标(菌落总数82.58%、总大肠菌群92.15%、耐热大肠菌群94.08%)和氨氮(94.84%)。枯水期水样和检测项目合格率均高于丰水期,差异具有显著统计学意义(χ~2=10.51,29.21.P<0.01)。全年和枯水期、丰水期地面水源水合格率低于地下水源水,具有显著统计学差异(χ~2=55.48,26.10,77.86.P<0.01)。未进行消毒处理的水样微生物指标合格率明显低于进行消毒处理的,差异具有显著统计学意义(χ~2=35.61,39.28,42.22.P<0.01)。结论枯水期的水质总体优于丰水期水质,氯化物、微生物指标和氨氮是影响盐城市农村水质合格率的主要因素。更多还原

【Abstract】 Objective To understand the hygienic situation of drinking water in Yancheng City,and to provide the scientific evidence for improving the quality of drinking water.Methods From January to October in 2010,according to the guideline of drinking water quality monitoring in Yancheng City,the drinking water quality of the central water supply in nine countries(city、borough) of Yancheng city was investigated.Results From the result of comprehensive evaluation,the eligible rate of drinking water was 57.92%,and Chloride (88.02%),bacteriological index(total number of bacteria82.58%,total coliform group 92.15%,heat-resistant coliform group 94.08%) and nitrogen(94.84%) were the major ineligible factors.Significantly higher eligible rates of water sample and detection index were found in the dry season than in the wet season(χ~2=10.51,29.21.P<0.01). Significantly lower eligible rates of water sample in the dry season,wet season and the whole year were found in the surface water than in the groundwater(χ~2=55.48,26.10,77.86.P<0.01).Eligible rates of bacteriological index in the water sample with disinfection in the dry season,the wet season and the whole year were significantly higher than that without disinfection(χ~2=35.61,39.28,42.22.P<0.01).Conclusion Quality of drinking water in the dry season was better than that in the wet season.Chloride,bacteriological index and nitrogen were the major influence factors to the eligible rate of drinking water.更多还原