中国北方某城市近郊土壤中重金属污染现状及潜在危害  

THE SITUATION OF SOIL HEAVY METAL POLLUTION ON THE OUTSKIRTS OF A CITY IN THE NORTHEM CHINA AND ITS POTENTIAL HARMFULNESS

作　　者：赵传冬[1] 成杭新[1] 庄广民[1] 刘应汉[1] 王晓丽[2] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]中国地质大学,北京100083

出　　处：《物探与化探》2006年第4期344-347,353,共5页Geophysical and Geochemical Exploration

基　　金：国家重点基础研究项目(G1999045707);科技部社会公益研究项目(2001DIA10021)资助

摘　　要：通过中国北方某城市近郊土壤环境质量的系统调查发现,本区土壤中重金属污染物的化学组成主要为Hg、Cu、Pb、Zn、Se、Cd等;该城近郊土壤的重金属污染是一种典型的大面积、低含量的散漫型污染,局部存在着一些高含量的热点污染。污染物存在形式的研究显示,本区土壤中很有可能存在着潜在的重金属“化学定时炸弹”。Based on a systematic investigation into the environmental quality of soils on the outskirts of a city, it has been found that the pollution of heavy metals in soils in the study area is mainly composed of Hg, Cu, Pb, Zn, Sn and Cd. The pollution is characterized by large extension and low content, being the typical dispersive pollution type. There also locally exist some hot pollution points with high contents of pollutants. The study of the occurrence modes of pollutants shows that there may exist ＂chemical time bombs＂ of heavy metals in the study area.

关 键 词：土壤 重金属污染 潜在危害 化学定时炸弹 

分 类 号：P632[天文地球—地质矿产勘探]