中文摘要：

在分析了某小型油库周边地区水文地质条件的基础上，对研究区内8个采样点进行地下水取样测试，选取其中含量较高的锰元素进行分布特征与迁移机制分析。以《地下水质量标准》（GB／T1484893）为评价标准，采用单因子指数评价法对区内地下水中锰元素进行评价。结果表明，油库周边地区地下水中含锰量普遍偏高，大部分都超出了GB／T1484893规定的锰限值。

英文摘要：

Base on analyzing the hydrology geological condition of a small oil depot and its surrounding area, the author sampled the local groundwater from eight sampling points to detect the manganese concentration. The distribu- tion characteristics and migration mechanism of manganese in local groundwater was researched on the basis of detec- tion results. In this paper, the groundwater environmental quality standard （GB/T 14848-93） was applied as evalua- tion criteria to evaluate manganese pollution of local groundwater by single-factor evaluation method. The results showed that the manganese concentration in study area was generally higher than normal level, manganese concentra- tion in most sampling points beyond the manganese limited value of GB/T 14848-93.