【摘要】 目的 了解广州市某区农村小型集中式供水水质现状，为农村生活饮用水安全管理工作提供科学依据。方法 连续在2018—2022年丰水期（4月至9月）及枯水期（10月至次年3月），采集广州市某区农村小型集中式供水监测点水样进行检测，按照《生活饮用水卫生标准》（GB 5749—2006）中标准限值进行结果评价。结果 五年间共采集水样102份，总体合格率为31.37%(32/102)。不同年份水样合格率间比较，差异有统计学意义（χ~2=13.182,P=0.01）；地表水合格率（7.50%）低于地下水（46.77%），差异有统计学意义（χ~2=17.419,P<0.001）。水质单项指标超标率居前五位依次是总大肠菌群>耐热大肠菌群>pH值>浑浊度>铝。结论 某区农村小型集中式供水水质亟待改善，微生物污染是首要的卫生问题。更多还原

【Abstract】 Objective To understand the drinking water quality of small centralized water supply in a rural district of Guangzhou,and to provide scientifi c basis for the safety management of rural drinking water. Methods The water samples from a small centralized water supply in a rural area of Guangzhou were collected and tested continuously during the high water season(from April to September) and low water season(from October to March of the following year) from 2018 to 2022,and the results were evaluated according to The Standard Limits in The Hygienic Standard For Drinking Water(GB 5749-2006). Results In the past five years,a total of 102 water samples were collected,and the total qualified rate was 31.37%(32/102). The qualified rate in different years was compared,and the difference was statistically significant （χ~2=13.182,P=0.01）.The qualified rate of surface water(7.50%) was lower than that of groundwater(46.77%),and the difference was statistically significant （χ~2=17.419,P <0.001）. The disqualified rate of single index ranked as total coliforms > thermotolerant coliforms >pH value >turbidity >aluminum. Conclusion The drinking water quality of small centralized water supply in a rural area needs to be improved urgently,and microbial contamination is the primary hygienic problem.更多还原