摘要
目的分析玉林市生活饮用水卫生质量,为防控水源性疾病和卫生监督管理、农村饮水工程提供科学依据。方法按照GB/T5750-2006《生活饮用水标准检验方法》检验,GB5749-2006《生活饮用水卫生标准》判定,并对检测资料进行统计分析。结果玉林市2008-2010年生活饮用水微生物指标总合格率为71.79%,2008、2010年合格率71.54%、71.79%与2009年57.83%差异有统计学意义(χ2=25.44,P<0.05);总大肠菌群平均超标率最高24.39%(141/578),其次是细菌总数平均超标率17.12%(99/578),耐热大肠菌群平均超标率最低6.93%(40/578);城市集中式供水277份,合格率94.22%,乡村集中式供水125份,合格率64.80%,农村井水176份,合格率41.47%,城乡之间饮用水细菌指标差异有统计学意义(χ2=132.10,P<0.05);分散式供水细菌指标超标率显著大于集中式供水(χ2=114.91,P<0.05);枯水期水质优于丰水期水质但差异无统计学意义(χ2=1.38,P>0.05)。结论玉林市生活饮用水细菌指数均有超标,污染较重在农村,应采取相应措施,确保生活饮用水卫生安全,切实保障饮水居民的身体健康。
Objective To analyze the quality of drinking water in Yulin City,and to provide a scientific basis for controlling the incidence of waterborne infectious diseases,health supervision and management,rural drinking water projects.Methods Testing was conducted according to ＂Standard Test Method for Drinking Water＂ GB/T 5750-2006,and determination was performed according to ＂Drinking Water Health Standards＂ GB5749-2006.Moreover,the testing data were statistically analyzed.Results From 2008 to 2010,the average passing rate of microbiological indexes about drinking water in Yulin City was 71.79%.The average passing rates in 2008,2010,and 2009 were 71.54%,71.79%,and 57.83%,respectively,and there were statistically significant differences between 2009 and 2008 or 2010（χ2=25.44,P0.05）.The average overstandard rate of total coliform group in drinking water was the highest（24.39%,141/578）,followed by the average overstandard rate of total bacteria（17.12%,99/578） and the average overstandard rate of thermotolerant coliform bacteria（6.93%,40/578）.Among 277 water samples collected from urban water supply system,the passing rate was 94.22%.Among 125 water samples collected from rural water supply system,the passing rate was 64.80%.Among 176 water samples collected from well water,the passing rate was 41.47%.There were statistically significant differences in bacteria indexes between urban areas and rural areas（χ2=132.10,P0.05）.The average overstandard rate of bacteria indexes in water provided dispersally was significantly higher than that in water from central water supply（χ2=114.91,P0.05）.The water in rainless season was better than that in rainfall season,but no statistically significant difference was found between them（χ2=1.38,P0.05）.Conclusions The content of bacteria in drinking water in Yulin exceeded the standard,and the rural areas were worse than the urban areas.We should take appropriate measures to ensure the quality of drinking water and effectively protect the health of the residents.
出处
《实用预防医学》
CAS
2011年第9期1634-1636,共3页
Practical Preventive Medicine
关键词
生活饮用水
细菌
污染特征
Drinking Water
Bacteria
Pollution characteristics
