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目的了解绵阳市直饮水卫生状况,保障饮水安全,预防介水传染病的发生,为制定直饮水卫生法规和标准提供科学依据。方法按GB/T 5750-2006《生活饮用水水质检测标准检验方法》对水样进行分析,检测结果按CJ94-2005《饮用净水水质标准》进行评价。结果共检测水样113份,合格水样81份,合格率71.68%。菌落总数和消毒剂指标超标率较高。不同采样时间样本合格率差异无统计学意义(χ2=2.928,P>0.05);机关单位和公共场所样本合格率差异有统计学意义(χ2=11.223,P<0.01)。结论绵阳市直饮水合格率不高,细菌学指标是影响合格率的主要因素,应加大直饮水卫生监管力度。
Objective To understand the sanitary status of drinking water in Mianyang City, ensure the safety of drinking water and prevent the occurrence of water-borne infectious diseases, so as to provide a scientific basis for drafting drinking water health regulations and standards. Methods According to GB / T 5750-2006 “drinking water quality testing standards test methods” on the water samples were analyzed, the test results according to CJ94-2005 “drinking water quality standards” for evaluation. Results A total of 113 water samples were tested and 81 water samples were qualified. The pass rate was 71.68%. The total number of colonies and disinfectant exceeded the standard rate higher. There was no significant difference in the passing rate of samples at different sampling times (χ2 = 2.928, P> 0.05). There was a significant difference in passing rate between sample units and public places (χ2 = 11.223, P <0.01). Conclusion The qualified rate of direct drinking water in Mianyang City is not high. Bacteriological indexes are the main factors affecting the qualified rate. Health supervision of drinking water should be strengthened.