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目的了解龙岩市城区近3年各类生活饮用水卫生状况及变化趋势,保障居民饮水卫生安全。方法依据GB 5749-2006《生活饮用水卫生标准》对2012-2014年龙岩市城区各类生活饮用水监测结果进行分析。采集了3年的出厂水72份。结果 2012-2014年龙岩市城区饮用水的合格率为81.94%,2012-2014年出厂水合格率分别为82.61%、85.19%、86.36%,不合格指标有浑浊度、消毒剂、菌落总数、总大肠菌群、耐热大肠菌群;2012-2014年末梢水合格率为93.94%,92.04%和79.55%,主要不合格指标为色度、浑浊度、p H、铁、消毒剂、菌落总数、总大肠菌群、耐热大肠菌群;2012-2014年二次供水合格率分别为66.67%,62.5%和62.0%,主要不合格指标为色度、浑浊度、p H、铁、消毒剂、菌落总数、总大肠菌群、耐热大肠菌群,以消毒剂的不合格率较高,其次是细菌总数。结论龙岩市生活饮用水尚存在微生物污染的安全隐患,今后要加强卫生督导,确保饮用水的卫生安全。
Objective To understand the hygienic conditions and changing trends of drinking water in various urban areas in the past three years in Longyan City and to ensure the health and safety of residents drinking water. Methods According to GB 5749-2006 “drinking water health standards” 2012-2014 Longyan City, all kinds of drinking water monitoring results. Collect 3 years of factory water 72 copies. Results The qualified rate of drinking water in urban area of Longyan from 2012 to 2014 was 81.94%. The passing rate of factory water in 2012-2014 was 82.61%, 85.19% and 86.36% respectively. The unqualified indicators were turbidity, disinfectant, total number of colonies, Coliform bacteria and heat-resistant coliform bacteria. The qualified rate of the peripheral water from 2012 to 2014 was 93.94%, 92.04% and 79.55%. The main unqualified indicators were chromaticity, turbidity, pH, iron, disinfectant, total number of colonies, Total coliform bacteria and heat-resistant coliform bacteria. The pass rates of secondary water supply in 2012-2014 were 66.67%, 62.5% and 62.0% respectively. The main unqualified indicators were colorimetric, turbidity, p H, iron, disinfectant, The total number of colonies, total coliforms, heat-resistant coliform bacteria to disinfectant high failure rate, followed by the total number of bacteria. Conclusion There are still hidden dangers of microbial contamination in the drinking water in Longyan City. Health supervision should be stepped up in the future to ensure the hygiene and safety of drinking water.