论文部分内容阅读
目的了解2014—2015年甘肃省武威市水质卫生状况及其变化趋势。方法采集武威市1个市辖区和3个县的水样,分别根据《生活饮用水标准检验方法》GB/T 5749-2006和《生活饮用水卫生标准》GB/T 5750-2006对饮用水样进行检验和评价。结果 2014—2015年共检测1 186份水样,合格960份、合格率80.95%,2015年水样总体合格率高于2014年;样本中枯水期水样592份,合格482份、合格率81.42%;丰水期水样594份,合格478份、合格率80.47%,枯水期的合格率高于丰水期;二次供水的总合格率(88.63%)最高,其次为末梢水的总合格率(84.40%),出厂水的总合格率(75.00%)最低;2014—2015年水中微生物指标大肠埃希氏菌全部合格,2015年总大肠菌群、耐热大肠菌群以及菌落总数的合格率较2014年呈现稳步上升;2015年单项指标偏低的为浑浊度,合格率86.79%。结论甘肃省武威市水质卫生状况总体较好,但应提高出厂水的水质质量,减少水质中有机物含量。
Objective To understand the status of water quality sanitation and its changing trend in Wuwei City, Gansu Province from 2014 to 2015. Methods The water samples from 1 municipal district and 3 counties of Wuwei City were collected and analyzed according to the standards of “Standard Test Method for Domestic Drinking Water” GB / T 5749-2006 and “Domestic Drinking Water Standard” GB / T 5750-2006 respectively For inspection and evaluation. Results A total of 1 186 water samples were tested during the period from 2014 to 2015, with a pass rate of 960 and a pass rate of 80.95%. In 2015, the overall pass rate of water samples was higher than that of 2014; 592 samples were in dry season and 482 were qualified, with a pass rate of 81.42% ; 594 batches of water samples during the wet season, 478 passes, the passing rate was 80.47%, the pass rate in dry season was higher than that in wet season; the total pass rate of secondary water supply was the highest (88.63%), followed by the total pass rate of peripheral water 84.40%). The total qualified rate of manufactured water (75.00%) was the lowest. The indicators of microorganisms in water were all qualified for Escherichia coli from 2014 to 2015. The qualified rate of total coliforms, heat-resistant coliform bacteria and total colony in 2015 It showed a steady increase in 2014; in 2015, the index of single item was low, with a passing rate of 86.79%. Conclusion The water quality and sanitation of Wuwei City, Gansu Province is generally good, but the water quality of factory water should be increased and the organic content of water should be reduced.