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目的了解渭南市生活饮用水卫生状况,探讨影响水质安全的主要因素,为相关部门制定改善措施提供科学依据。方法按照《生活饮用水标准检验方法》(GB/T 5750-2006)进行检验,按照《生活饮用水卫生标准》(GB/T 5749-2006)进行评价。结果 3年共检测生活饮用水618份,合格样品210份,合格率34.0%。所检项目中微生物指标合格率最低,仅为36.0%。2009—2011年水样合格率分别为26.6%、32.1%、42.8%,差异有统计学意义(χ2=12.28,P<0.01)。结论渭南市生活饮用水水质合格率较低,受微生物污染严重,必须加强对饮水水源的卫生防护,加强水质沉淀、净化和消毒处理,确保城镇居民饮水安全。
Objective To understand the sanitary status of drinking water in Weinan City and to explore the main factors affecting the water quality and safety and to provide a scientific basis for the relevant departments to formulate improvement measures. Methods According to “Standard Test Method for Domestic Drinking Water” (GB / T 5750-2006), it was evaluated in accordance with “Sanitary Standard for Domestic Drinking Water” (GB / T 5749-2006). Results A total of 618 drinking water samples were tested in 3 years and 210 samples were qualified with a pass rate of 34.0%. The seized items in the microbial indicators pass the lowest rate of only 36.0%. The qualified rates of water samples from 2009 to 2011 were 26.6%, 32.1% and 42.8%, respectively, with significant difference (χ2 = 12.28, P <0.01). Conclusion Weinan City, drinking water quality pass rate is low, subject to serious microbial contamination, we must strengthen the health protection of drinking water sources, to strengthen precipitation, purification and disinfection of water to ensure that urban residents drinking water safety.