摘要
目的了解霸州市2015-2018年农村饮水水质卫生现状和变化趋势,为上级行政部门改善农村饮水提供依据。方法按照《河北省生活饮用水水质卫生监测方案》要求,获取枯水期及丰水期各供水单位的出厂水、末梢水等水样常规指标和氨氮指标的检测结果,并进行统计学分析。结果 2015-2018年共监测农村生活饮用水1 948份,合格率24.4%。不同年度水质检测结果合格率差异有统计学意义(χ^(2)=63.70,P<0.01),合格率有逐年上升趋势。出厂水与末梢水合格率差异无统计学意义(χ^(2)=0.17,P>0.05)。枯水期与丰水期合格率分别为39.8%和21.1%,差异有统计学意义(χ^(2)=9.85,P<0.05)。集中式供水与分散式供水合格率差异有统计学意义(χ^(2)=8.33,P<0.05)。单指标合格率较低的依次是氟化物、总大肠菌群数、耐热大肠菌群、浑浊度、氯化物、游离余氯。结论霸州市农村生活饮用水水质合格率偏低,水质存在微生物污染,可能是由于农村地区供水消毒处理不到位和不能保证24 h供水。建议加强生活饮用水集中式供水和管网消毒,提高饮用水质量。
Objective To understand the current situation and changing trend of rural drinking water quality in Bazhou from 2015 to 2018,and to provide a scientific basis for the administrative departments to improve rural drinking water.Methods According to the requirements of Drinking Water Quality Sanitation Monitoring Program in Hebei Province,water samples such as factory water,terminal water and other water samples of water supply units were collected in low and high water periods to obtain the inspection results of routine Indexes and ammonia nitrogen indexes,and statistical analysis was carried out.Results From 2015 to 2018,a total of 1 948 samples of rural drinking water were monitored,with a qualified rate of 24.4%.There is a statistically significant difference in the qualified rate of water quality test results in different years(χ^(2)=63.70,P<0.01),and the qualified rate increased year by year.There was no significant difference between the qualified rate of the factory water and the terminal water(χ^(2)=0.17,P>0.05).The qualified rate was 39.8% in the dry season and 21.1% in the wet season,and there was a significant difference between them(χ^(2)=9.85,P<0.05).There was a statistically significant difference between the qualified rate of centralized water supply and decentralized water supply(χ^(2)=8.33,P<0.05).Fluoride,total number of coliforms,thermotolerant coliforms,turbidity,chloride and free residual chlorine got in the proper order with the descent qualified rate of single index.Conclusion The qualified rate of rural drinking water in Bazhou was low,and the water quality was polluted by microorganisms,which may be caused by the inadequate disinfection of water supply and the inability to guarantee 24-hour water supply in rural areas.It is suggested to strengthen the centralized water supply and pipe network with disinfection measures for drinking water to improve the quality of drinking water.
作者
朱永舜
李雪
于金艳
刘德新
王艳红
ZHU Yong-shun;LI Xue;YU Jin-yan;LIU De-xin;WANG Yan-hong(Bazhou Center for Disease Control and Prevention,Hebei065700,China)
出处
《医学动物防制》
2021年第3期284-286,共3页
Journal of Medical Pest Control
基金
廊坊市科学技术研究与发展计划项目(2020013164)。
关键词
农村
饮用水
监测
分析
评价
Rural areas
Drinking water
Monitoring
Analysis
Evaluate
