西安市城市灰尘微量元素环境异常研究

详细信息

收稿日期: 2005-01-28

ENVIRONMENTAL ANOMALIES OF TRACE ELEMENTS IN URBAN DUST OF XI'AN CITY

Received Date: 28 January 2005

摘要: 通过对西安市城市灰尘中部分微量元素背景值和富集程度的研究,圈定了环境异常区.对各异常区元素特点进行分析,指出异常区城市灰尘中主要污染元素为Hg、Ag、Sb、Zn,其余元素在不同异常地段也有不同程度的富集.在此基础上,分别对不同异常地段中微量元素的分布状况作了评价.
- 城市灰尘 /
- 微量元素 /
- 背景值 /
- 富集系数 /
- 环境异常
Abstract: Based on a study of the background values and enrichment degrees of some trace elements in urban dust in Xi'an City,environmental anomaly areas in Xi'an were outlined,and the element characteristics of various environmental anomaly areas were analyzed.The paper points out that the main pollution-producing elements in urban dust in the anomaly areas are Hg,Ag,Sb and Zn,while the other elements in different anomaly areas are also enriched to different degrees.On the basis of these results,the distributions of trace elements in different anomaly areas were evaluated.
- urban dust /
- trace element /
- background value /
- enrichment coefficient /
- environmental anomaly