西安市潜水污染现状与污染趋势分析

Analysis of pollution actuality and trend of superficial ground water in Xi′an

西安市潜水因埋藏浅,在各种自然因素和人类活动的影响下,已遭受到严重污染。大部分地区潜水中总固体、总硬度、硝酸盐、氟化物、氯化物含量等已超过国家饮用水标准。笔者根据近10年来的系统水质监测资料,经整理、综合分析认为:随着人类环境保护意识的增强,地质环境条件相应的有所改善,潜水中主要污染物组分含量都有不同程度降低,污染面积逐年缩小,潜水质量在逐步好转。

Because of the short distance of its location to the surface, the influence of many kinds of natural factors and human activities, ground water in Xi′an city has been greatly polluted. The overall solid, rigidity, nitrate,fluoride and chloride and so on, have exceeded the national table-water standard. In this paper, through over 10 years′ systemic gathering and analizing the data of the quality of ground water in Xi′an, we draw the conclusion that the geological environment has correspondingly improved with peop(le′s) deeper realizaion of the importance of the protection of our living environment. The main pollution components have been decreased and the area polluted has shrinked more or less and the quality of ground water has been improved.