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.
出处
《物探与化探》
CAS
CSCD
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
关键词
土壤
重金属污染
潜在危害
化学定时炸弹
soil
pollution of heavy metals
potential harmfulness
chemical time bomb
