中文摘要：

太原市属于我国北方的半干旱地区，地下水资源是区内最重要的供水水源。然而，该地区代表性地下水的水质演化趋势与常规污染物分布特征表明，区内地下水已经遭受污染，在研究区南部，地下水污染问题尤为突出。分析了研究区地下水污染的原因，结果表明人类活动是最主要的因素，包括地下水开采、工业与生活废弃物的排放、农业污灌、化肥及农药的施用、采矿活动等。

英文摘要：

Taiyuan city is located in the semiarid region of northern China, groundwater resources being the most important water supply there. However, the analysis of water quality evolution trend of representative water sampies and distribution features of common pollutants indicate that groundwater in Taiyuan city has been contaminated and the pollution in the southern study area is the most serious. The genesis analysis of groundwater contami- nation denotes that human activities, including groundwater exploitation, discharge of industrial and domestic waste, irrigation in agriculture, application of fertilizer and pesticide, and mining, are the most significant factor resulting in the water quality deterioration in the study area.