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目的 了解新乡市近郊农村生活饮用水卫生状况 ,为水质监测提供依据。方法 按照常规方法进行 10 0个水源采样 ,以《生活饮用水标准检验方法》GB5 75 0 - 85对所采集的水样进行检测 ,检测项目有物理学指标、化学性指标以及细菌学指标。结果 所有水样感观指标均达到国家卫生标准 ,其它指标除 pH值、硝酸盐氮合格率在 90 %以上外 ,其余指标合格率均较低 ,其中总硬度、氨氮及挥发酚的合格率分别为 5 3 %、5 2 %和 5 2 %。丰水期与枯水期重要污染指标有显著性差别 (P <0 .0 5 )。结论 新乡市近郊农村生活饮用水已经受到不同程度的污染 ,主要是细菌和有机物的污染
Objective To understand the sanitary status of rural drinking water in suburbs of Xinxiang City and provide the basis for water quality monitoring. Methods A total of 100 water samples were collected according to the routine method, and the collected water samples were tested according to the standard test method of domestic drinking water GB5 75 0 - 85. The physical, chemical and bacteriological indexes of the test items were tested. Results All the water quality sensory indicators reached the national health standards. The other indicators except for pH value and nitrate nitrogen pass rate were above 90%, and the other indicators passed the low pass rate. The total hardness, ammonia nitrogen and volatile phenol pass rate were respectively 5 3%, 5 2% and 52%. There was a significant difference between the significant pollution indicators in wet season and dry season (P <0.05). Conclusion Rural drinking water in rural areas of Xinxiang City has been polluted to varying degrees, mainly by bacteria and organic pollutants