摘要
本文以地下水调查的水质分析资料和动态监测资料为基础,参照我国地下水质量标准和生活饮用水卫生标准,对西北地区地下水质量状况进行综合评价。结果表明西北地区地下水质量状况为全国较差的地区,不可直接利用的地下水多分布于该区内陆盆地中心地带;地下水污染多发生在主要城市、工矿企业及其周边地区,水污染主要呈点状、线状分布,主要超标项目为溶解性总固体、总硬度、硝酸盐、亚硝酸盐、硫酸盐、氯化物和氟化物等。
Based on the groundwater chemical analyses and dynamic monitoring data, and according to the groundwater quality standard and the drinking water quality standard of China, the groundwater quality in northwest China was synthetically evaluated in this paper. The results showed that the groundwater quality in northwest China was not in a good state and that groundwater was unfit for direct usage occurs at the center of the endorheic basins in this region. Groundwater contaminants, such as TDS, total hardness, nitrate, nitrite, sulfate, chloride, fluoride, mostly spread near the cities and industrial enterprises. They often occurred as spots and lines in the region.
出处
《水文地质工程地质》
CAS
CSCD
2004年第4期96-100,共5页
Hydrogeology & Engineering Geology
基金
国土资源部地质调查重大项目"全国地下水资源评价"(DKD20023067)
关键词
水质评价
染评价
地下水
西北地区
water quality evaluation
evaluation of contamination
groundwater
northwest China
