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目的通过对2009～2011年我区生活饮用水水质监测与调查,从整体上了解目前我区农村饮用水水质卫生状况,以便为相关部门制定科学、有效的改进措施提供参考和依据。方法现场调查和采样监测,收集2009-2011年琼山区农村中小型集中式供水的监测资料,依据《生活饮用水评价标准》(GB5749-2006)表1和表4中小型集中式供水和《生活饮用水卫生监督管理办法》进行评价。结果共检测水样96份,其中细菌总数、总大肠菌群和耐热大肠菌群合格率分别为86.46%、68.75%、71.88%;丰水期水样不合格率(45.83%)高于枯水期的(25.00%),差异有统计学意义(χ2=4.55,P<0.05);出厂水不合格率(33.33%),末梢水不合格率(37.50%),差异没有统计学意义(χ2=0.182,P>0.05)。结论微生物指标是影响我区农村生活饮用水水质的重要因素,加强对农村饮用水水源的卫生防护以及为现有的饮水工程增加消毒设备是当今条件下改善琼山区农村饮水安全的重要措施。
Objective To monitor and investigate the quality of drinking water in our district from 2009 to 2011, and to understand the current status of drinking water quality in rural areas in our country in order to provide reference and basis for the relevant departments to make scientific and effective improvement measures. Methods Field survey and sampling monitoring were conducted to collect the monitoring data of small and medium-sized centralized water supply in rural Qiongshan District from 2009 to 2011. According to “Standard for Domestic Drinking Water” (GB5749-2006) Table 1 and Table 4, small and medium-sized centralized water supply and “living Drinking water health supervision and management approach ”for evaluation. Results A total of 96 water samples were detected. The total bacterial count, total coliforms and heat-resistant coliform bacteria were 86.46%, 68.75% and 71.88% respectively. The water sample failed in wet season (45.83%), The difference was statistically significant (χ2 = 4.55, P <0.05); the unqualified rate of water in factory (33.33%) and the unqualified rate of peripheral water (37.50%) were not statistically significant (χ2 = 0.182 , P> 0.05). Conclusion Microbial index is an important factor affecting the quality of drinking water in rural areas in our district. Strengthening the sanitary protection of rural drinking water sources and adding disinfection equipment to existing drinking water projects are important measures to improve drinking water safety in rural areas in Qiongshan District.