2011年乳山市水灾后生活饮用水水质调查

目的了解乳山市水灾过后生活饮用水水质情况。方法根据受灾情况随机抽取192份水样,按照GB/T 5750-2006、GB 5749-2006对水样进行检测及评价。结果 192份水样中,项目全部合格的为85份,合格率为44.3%。水灾前期(2011年7月27日—8月6日)合格率为2.1%,超标的多为微生物指标、感官指标、游离余氯、硝酸盐氮;水灾后期(9月6—11日)合格率为86.5%,超标的多为微生物指标。结论水灾对生活饮用水水质有很大的影响,只有加强灾后水质的消毒工作,并实施有效的检测,才能确保群众生活饮用水安全卫生。

Investigation on drinking water quality after disaster in Rushan City in 2011

[Objective]To understand the drinking water quality after disaster in Rushan City. [Methods]A total of 192 water samples were randomly selected and examined according to GB/T 5750-2006 and GB 5749-2006.[Results] Of 192 water samples,85（44.3%） were qualified for all items.The qualified rate at the prior period of flood（July 27-August 6,2011） was 2.1%,the major excessive items were biological indicators,sensory indicators,free residual chlorine,nitrate nitrogen.The qualified rate at the later period of flood（September 6-11,2011） was 86.5%,the major excessive item was biological indicators.[Conclusion]The floods have a great impact on the drinking water quality.Only the strengthening of water disinfection after disaster and effective detection can ensure the health and safety of drinking water.