目的对雅安市农村饮水安全工程卫生进行评价,为进一步加强农村饮水安全工程的管理提供科学依据。方法于2008年,抽取雅安市8个区(县)2000年以后建成的农村集中式供水工程进行现场调查。并对枯水期(3月)和丰水期(8月)采集的集中式供水工程出厂水和末梢水水样进行检测和评价。结果调查的133个供水工程以溪水和泉水为主要水源。完全处理的集中式供水有49个,占36.84%;部分处理的有75个,占56.39%;未处理的有9个,占6.77%。在部分处理的集中式供水中,未进行消毒处理的有63个,占84.00%。共采集水样524件,合格168件,合格率为32.06%。枯水期水样合格率为26.32%(70/266),低于丰水期[37.98%(98/258)];差异有统计学意义(χ2=8.187,P<0.01)。除浑浊度、肉眼可见物、溶解性总固体、氨氮、氟化物、菌落总数、总大肠菌群、耐热大肠菌群、余氯存在超标情况外,其余指标均合格。结论该市农村集中式供水水源水质基本良好,但微生物指标超标的问题值得关注。 Objective To evaluate the health of rural drinking water safety project in Ya’an and provide a scientific basis for further strengthening the management of rural drinking water safety project. Methods In 2008, the centralized centralized water supply project built in 2000 in the eight districts (counties) of Ya’an was sampled to carry out on-site investigation. The water samples collected from the factory and the peripheral water collected in the dry season (March) and wet season (August) were tested and evaluated. Results The 133 water supply projects investigated were mainly streams and spring water. There are 49 centralized treatment plants, accounting for 36.84% of total treatment, 75 partially treated, accounting for 56.39%, and 9 unprocessed, accounting for 6.77%. In the partially treated centralized water supply, 63 were not disinfected, accounting for 84.00%. A total of 524 water samples collected, 168 qualified, with a pass rate of 32.06%. The qualified rate of water samples in dry season was 26.32% (70/266), which was lower than that in wet season [37.98% (98/258)]. The difference was statistically significant (χ2 = 8.187, P <0.01). In addition to turbidity, the naked eye, total dissolved solids, ammonia nitrogen, fluoride, the total number of colonies, total coliform bacteria, heat-resistant coliform bacteria, residual chlorine exceeded the situation, the remaining indicators were qualified. Conclusion The water quality of rural centralized water source in the city is basically good, but the issue of excessive microbial indicators deserves our attention.