2005年晋中市榆次区186份自备井水质检测结果分析

[目的]了解榆次区自备井的水质卫生状况，为今后加强自备井的卫生监督和管理提供依据。[方法]依据《生活饮用水检验规范》（2001）方法检验，评价标准按《生活饮用水水质卫生规范》进行评价。[结果]186份自备井水的总合格率为59．14％。其中，感官性状指标合格率为96．77％，一般化学指标合格率为79．03％，毒理学指标合格率为74，19％，细菌学指标合格率为98．39％。主要不合格指标为氟化物、溶解性总固体、总硬度、铬、锰、硫酸盐。[结论]影响榆次区水质卫生的主要因素是毒理学和一般化学指标，特别是以氟化物、溶解性总固体、总硬度3大不合格因素为主，且以接近城区的修文镇、张庆乡、郭家堡乡等几个乡镇更为突出，提示应该加大对这些地区饮用水处理设施的投入或将其纳入城镇市政供水系统，同时还应该加强对自备井水源的防护与卫生管理。

Analysis of Water Quality of 186 Samples from Homemade Wells of Yuci District of Jinzhong City in 2005

[Objective]To understand the sanitary status of the homemade well water,provide scientific basis for inspection and supervision.[Methods]The quality of the water was examined and evaluated based on " Standard for the Examination of Drinking Water" and " Sanitary Standard for the Quality of Drinking Water".[Results]59.14% of the 186 samples from homemade wells were up to the standard, 96.77% were up to the standard by sense.The qualified rate of chemical ,toxicological and bacteriological index were 79.03%,74.19% and 98.39% respectively.The index of fluoride,soluble total solid,total hardness,chromium,manganese and sulfate was not up to the standard.[Conclusion]The main causes to affect the water quality were toxicological and chemical index especially the fluoride,soluble total solid and total hardness.The water quality is worse in Xiuwen,Zhangqing, and Guojiabao town,water treatment facilities must be improved and it must be brought into city water supply system.The water source of homemade well should be protected and supervised.