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目的了解垫江县生活饮用水卫生状况。方法按照GB/T 5750-2006《生活饮用水标准检验方法》对垫江县集中供水厂水质进行检验。按照GB/T 5749-2006《生活饮用水卫生标准》对结果进行卫生学评价。结果 2013~2014年垫江县重点监测水样219份,合格144份,合格率为65.75%。出厂水(78.31%)合格率高于末梢水(58.09%)(P<0.01);2014年(67.07%)合格率高于2013年(61.82%)(P>0.05),乡镇(73.21%)合格率高于城区(41.18%)(P<0.01)。常规监测水样428份,合格325份,合格率为75.93%,其中出厂水(82.14%)合格率高于末梢水(74.42%)(P>0.05),2014年(82.46%)合格率高于2013年(71.60%)(P<0.05),城区(80.38%)合格率高于乡镇(73.33%)(P>0.05)。主要不合格项目有浑浊度(82.84%)、总大肠菌数(89.64%)、耐热大肠菌数(89.64%)、细菌总数(93.66%)、和肉眼可见物(96.75%)。结论垫江县生活饮用水水质总体合格率较低。
Objective To understand the sanitary status of drinking water in Dianjiang County. Methods According to GB / T 5750-2006 Standard Test Method for Domestic Drinking Water, the water quality of Dianjiang centralized water supply plant was tested. According to GB / T 5749-2006 “drinking water health standards,” the results of hygiene evaluation. Results From 2013 to 2014, Dianjiang County focused on monitoring 219 water samples, of which 144 were qualified, with a pass rate of 65.75%. The passing rate of factory water (78.31%) was higher than that of peripheral water (58.09%) (P <0.01); the passing rate in 2014 (67.07%) was higher than that in 2013 (61.82%) (P> 0.05) Rate was higher than that in urban area (41.18%) (P <0.01). Among them, 428 water samples were routinely monitored and 325 were qualified, with a passing rate of 75.93%. The passing rate of factory water (82.14%) was higher than that of peripheral water (74.42%) (P> 0.05). The passing rate in 2014 was 82.46% In 2013 (71.60%) (P <0.05), the passing rate of urban areas (80.38%) was higher than that of townships (73.33%) (P> 0.05). The main unqualified items were turbidity (82.84%), total coliform (89.64%), heat-resistant coliform (89.64%), total bacteria (93.66%) and macroscopic (96.75%). Conclusion The overall qualified rate of drinking water in Dianjiang County is low.