摘要
目的了解农村人口的饮用水卫生安全状况及其地域分布特点,为政府提供决策依据。方法于2013年枯水期(3月-4月),对140座农村饮水的水源类型、水处理方式、消毒情况等进行现场调查。采集集中式供水点140个(每点采取出厂水和末梢水各1份),共计280份饮用水样品。按照GB/T5750—2006《生活饮用水标准检验方法》对水样进行检测。结果共采集水样280份,合格212份,合格率为75.71%。出厂水水样合格率为77.86%(109/140)高于末梢水73.57%(103/140),深井水合格率为79.73%(177/222)高于浅井水61.11%(33/54),差异均有统计学意义(x^2=9.65,P<0.01),单项指标合格率依次为肉眼可见物98.57%、硒97.86%、硫酸盐97.50%、菌落总数97.14%、氟化物97.14%、硝酸盐96.43%、氨氮96.07%、耐热大肠菌群95.36%、总硬度92.14%、总大肠菌群91.79%。结论农村供水的水处理工艺简陋,微生物学指标超标严重,农村生活饮用水安全性应引起相关部门关注。
Objective To know hygiene safety and area distribution characteristics of the rural drinking water hygiene safety and provide drinking water quality data for the decision - making of the government. Methods The survey of the water source types, water treatment processing and disinfection in 140 villages of the Shijiazhuang City＇ s were carried out in dry season （March to April）. The 140 samples were collected from central water supplier （one is finished water from water supplier and one was from end -point use, respectively）, Total was 280 samples in this survey. Water sample test was according to “stand- ard examination methods for drinking water” GB/T 5750--2006. Results 212 samples are up to the standard in the total 280 water samples, the compliance rate was 75.71%. Deep well qualified rate of 79.73% （177/222） was higher than the shallow water passing rate of 61.11% （33/54）, the differences were statistically significant （χ^2 = 9.65, P 〈 0.01 ）. Pass rate individ- ual indicators were visible matter 98.57% , selenium 97.86% , sulfate 97.50% , total number of colonies 97.14%, fluoride 97.14%, nitrate 96.43%, ammonia 96.07% , heat - resistant coliform bacteria 95.36% , total hardness 92.14% , thermotol- erant coliforms of total coliforms 91.79%. Conclusion The water treatment process in Shijiazhuang central rural water supply is imperfect, and several water items exceeded the standards, and the microbiological items exceeded the standards more. The relavent departments should paid attention on the rural drinking water safety.
出处
《中国卫生检验杂志》
CAS
2015年第8期1244-1246,共3页
Chinese Journal of Health Laboratory Technology
关键词
农村
生活饮用水
调查
微生物
Rural area
Drinking water
Survey
Microbial
