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目的了解博白县农村饮水安全工程水质卫生状况,发现存在问题,为监管和建设部门提供依据。方法据GB/T 5750-2006《生活饮用水标准检验方法》,分别在丰、枯水期对饮水工程水样采集、保存、运输和检测,据GB 5749-2006《生活饮用水卫生标准》进行评价。结果 5年共检测水样560份,其中19项指标均合格的有170份,合格率30.4%;2008—2012年水质合格率分别为22.0%、20.0%、21.7%、39.2%和45.8%,呈逐年上升趋势;枯水期总合格率(34.3%)高于丰水期(26.4%);5年共检测560份水样指标10 640项次,不合格项次率8.9%,19项指标中超标9项(47.4%)。毒理学指标均未超标,感官性状和一般化学指标超标率2.1%(156/7 280),微生物指标超标率最高46.8%(786/1 680),其中超标最严重的为菌落总数(57.7%)和总大肠菌群(51.8%)。结论博白县农村饮水安全工程水质微生物污染严重,需落实水质的消毒处理。
OBJECTIVE To understand the status of water quality and sanitation of rural drinking water safety project in Bobai County and to find out the problems so as to provide the basis for supervision and construction of the department. Methods According to GB / T 5750-2006 Standard Test Method for Domestic Drinking Water, the water samples collected, preserved, transported and tested were respectively collected during the abundance and dry season according to GB 5749-2006 Sanitary Standard for Domestic Drinking Water. Results A total of 560 water samples were detected in 5 years, of which 19 of the 19 indicators were qualified, with a pass rate of 30.4%. The passing rates of water quality in 2008-2012 were 22.0%, 20.0%, 21.7%, 39.2% and 45.8% respectively, (34.3%) in wet season was higher than that in wet season (26.4%). A total of 560 items of water samples were detected in 5 years, including 10 640 items and 8.9% of unqualified items, exceeding the standard of 19 items Nine items (47.4%). Toxicology indicators were not exceeded, sensory traits and general chemical indicators exceeded the standard rate of 2.1% (156/7 280), microbial indicators exceeded the highest rate of 46.8% (786/1 680), of which the most serious exceeded the total number of colonies (57.7%), And total coliform (51.8%). Conclusion The water quality microbial pollution of rural drinking water safety project in Bobai County is serious, so it is necessary to implement the disinfection of water quality.