摘要
依托国家地下水监测站点建设工程,选取河南省南部地区121组浅层地下水进行水质检测分析。分析结果表明,研究区浅层地下水的化学类型以HCO_(3)-Ca型为主,占总体的45.5%,其次为HCO_(3)-Ca·Mg型,占总体的34.7%;少量的HCO_(3)·SO_(4)-Ca型、HCO_(3)·Cl-Ca·Mg型等水化学类型呈斑块状、片状分布。参照我国地下水质量标准,对本区浅层地下水进行单因子与综合环境质量评价,认为该区不可直接饮用的浅层地下水占69.4%,除南阳地区外,综合环境质量较差;地下水污染多发生在主要城市、工矿企业及其周边地区。
Relying on the construction of national groundwater monitoring sites,121 shallow groundwater samples were collected for water quality analysis.The result shows that chemical composition of shallow groundwater in the study area is dominated by HCO_(3)-Ca,accounting for 45.5% of the total,followed by HCO_(3)-Ca·Mg,accounting for 34.7% of the total,and a small amount of hydrochemical type such as HCO_(3)·SO_(4)-Ca and HCO_(3)·Cl-Ca·Mg are patchy in distribution.According to groundwater quality standards,single factor and comprehensive environmental quality of shallow groundwater in this area was assessed.The results show that shallow groundwater that is not directly drinkable in this area accounts for 69.4%.Except for NanYang the Comprehensive environmental quality are poor.Groundwater pollution occurs mostly in major cities,industrial and mining enterprises and their surrounding areas.
作者
柳西亚
LIU Xi-ya(No.4 Institute of Geologincal&Mineral Resources Survey of Henan,Zhengzhou,Henan 450000,China)
出处
《地下水》
2022年第2期32-34,81,共4页
Ground water
基金
国家地下水监测工程(河南省部分)地下水监测站点土建工程(JCGC16141121)。
关键词
浅层地下水
水质特征
质量评价
河南省南部
Shallow groundwater
water quality characteristics
quality assessment
southern Henan province
