主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报

• 论文 • 上一篇    下一篇

沈大高速公路两侧土壤重金属污染分布特征研究

甄宏   

  1. 辽宁省环境科学研究院 辽宁沈阳110031
  • 收稿日期:2008-02-28 修回日期:2008-04-10 出版日期:2008-04-01 发布日期:2008-04-01

Distribution characteristics of soil heavy metal pollution at both sides of the roads along Shenyang-Dalian expressway

ZHEN Hong   

  1. Liaoning Academy of Environmental Sciences;Shenyang 110031;China
  • Received:2008-02-28 Revised:2008-04-10 Online:2008-04-01 Published:2008-04-01

摘要: 对沈大高速公路沈阳、辽阳、鞍山、营口和大连段两侧土壤中铅、镉、锌、铬、镍和铜的含量进行测定。结果表明:在距路肩250 m范围内,各段土壤中铅、镉均有不同程度的累积,锌、铬、镍、铜污染不显著。土壤中铅、镉最大污染指数为3.34和2.42,污染较高值出现在距路肩50 m内,尤以20—40 m为高,除铅外其余重金属含量在距路肩150 m以外趋于背景值,但土壤中铅污染为250 m以外。

关键词: 沈大高速公路两侧, 土壤, 重金属污染

Abstract: The contents of Pb,Cd,Zn,Cr,Ni and Cu in the soil at both sides of the roads in Shenyang,Liaoyang,Anshan,Yingkou and Dalian were determined along Shenyang-Dalian expressway.The results indicate that soil Pb and Cd contents in each section are accumulated in the range of 250 m at both sides along the expressway,while the contents of Zn,Cr,Ni and Cu are lower.The maximum pollution indices for soil Pb and Cd are 3.34 and 2.42,respectively.The higher values of soil Pb and Cd contents occur within 50 m to the road shoulder,especially in the ranges from 20 m to 40 m.Most soil heavy metal contents are close to the background values at 150 m away the expressway,while soil Pb content is at 250 m.