摘要
针对秦皇岛市地下水位下降,环境污染日益严重的现实,开展了以海水入侵区为主的地下水质综合评价与分析。在全市境内布设76眼监测井,用单因子法和综合法对地下水质量进行了评价,并对地下水水质变化趋势进行了分析。研究结果表明:Ⅰ类水只占5.3%,Ⅱ、Ⅲ水占14.5%,Ⅳ类及超Ⅳ类水占到80%以上,其中Ⅴ类水占40%。主要污染物有Fe、Mn、NO3-N、Cl、总硬度等。地下水质监测动态变化显示:总硬度、Cl-、矿化度、F-等呈上升趋势,其中总硬度和Cl-上升达75%,说明海水入侵的影响很大。
To conter the situation of increasingly declining groundwater level and environmental pollution, the water quality assessment and analysis of sea water invasion district was studied. 76 monitoring wells were laid , a single index method and the method of the comprehensive evaluation were used and the groundwater trends was analyzed. The results showed that the shallow groundwater of Qinhuangdao City meeting the Ⅰ category water standard accounted for only 5. 3%, Ⅱ , Ⅲ categories 14.5%, Ⅳ, Ⅴ categories more than 80% , 40% of which was Ⅴ categories and that Fe, Mn ,NO3-N, Cl, total hardness were the major chemical components. The dynamics monitoring of underground water indicated that total hardness , chlorine, degree of mineralization , fluorine are becoming upward trend, especially total hardness and chlorine increased by over 75 %, which means salt water intrusion on the larger impact.
出处
《水土保持研究》
CSCD
北大核心
2007年第2期330-332,共3页
Research of Soil and Water Conservation
基金
河北省自然基金项目(301165)
关键词
秦皇岛市
地下水
水质评价
变化趋势分析
Qinhuangdao City
groundwater
water quality assessment
changing trend analysis
