2014-2015年甘孜州丹巴县生活饮用水水质监测结果分析

Sanitary Quality Monitoring Results of Drinking Water in Danba County,Ganzi Tibetan Autonomous Prefecture in 2014 and 2015

目的了解丹巴县生活饮用水水质现状,为生活饮用水管理提供科学依据。方法按照GB/T5750-2006《生活饮用水标准检验方法》采集丹巴县15个乡镇共53份生活饮用水样品进行检测,按照GB5749-2006《生活饮用水卫生标准》进行评价。结果丹巴县生活饮用水总合格率为9.4%,感官性状指标、一般化学指标、细菌学指标、毒理学指标不合格率分别为8.0%、1.7%、0.0%和69.2%。不合格率较高的指标主要是总大肠菌群、耐热大肠菌群、菌落总数、浑浊度和耗氧量。结论丹巴县生活饮用水水质较差,受微生物污染严重,应加强对生活饮用水的消毒和管理。

Objective To investigate quality of drinking water in Danba County,and to provide a scientific basis for drinking water management. Methods Fifty-three water samples from 15 villages were sampled and analyzed according to Standard Examination Methods fo r Drinking Water（ GB / T5750- 2006）,and evaluated according to Standards for Drinking Water Quality（ GB5749-2006）. Results The total qualified rate of drinking water in Danba County was 9. 4%. The disqualified rates of sensory properties,general chemical,bacteriological,and toxicological indexes were 8. 0%,1. 7%,0. 0%,and 69. 2%,respectively. Indexes with high over-standard rates included total coliforms,thermotolerant coliform bacteria,standard plate-count bacteria,turbidity and oxygen consumption. Conclusion The drinking water quality in Dan County was poor with serious microbial contamination. Disinfection and management of drinking water should be strengthened.