Effect of road traffic on heavy metals in road dusts and roadside soils
文献类型：EI期刊论文
| 作者 | Chen Tongbin ; Lei Mei
|
| 发表日期 | 2008 |
| 关键词 | Cadmium Copper Dispersion (waves) Dust Friction materials Heavy metals Lead Lead alloys Liquid fuels Metals Motors Petroleum products Renewable energy resources Roads and streets Roadsides Soils Vehicles Wind effects |
| 英文摘要 | In order to gain an understanding of the concentrations and dispersion patterns of heavy metals emitted by motor vehicles and deposited in road and roadside soils, the concentrations and dispersion patterns of heavy metals were analyzed based on previous studies from different cities at home and abroad. Vehicular emissions, especially combustion of lubricants and lead-gasoline, mechanical abrasion of vehicle tyres and brakes, are the major source of heavy metals such as Pb, Zn, Cu and Cd in road dusts and roadside soils. Particulates containing heavy metals may deposit in road dusts directly or in roadside soils via aerial deposition, which brings about the accumulation of heavy metals in road dusts and roadside soils. Numerous studies have indicated that heavy metals such as Pb, Cu, Zn and Cd have accumulated in road dusts and roadside soils of China and some other countries, which may cause adverse effects on human health and environmental quality. Generally, the concentrations of heavy metals in roadside soils decrease exponentially with increasing distance from the road edge. Dispersion patterns of heavy metal contents vary greatly in different regions, and the differences are attributed mainly to the effects of traffic intensity, topographic profiles (up-down hill), road surface and greenbelts in local region, in addition to micrometeorological factors, such as wind power and speed, direction of dominant winds and rainfall. |
| 出处 | Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae
 |
| 卷 | 28期:10页:1937-1945 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24891]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Chen Tongbin,Lei Mei. Effect of road traffic on heavy metals in road dusts and roadside soils. 2008. |
入库方式： OAI收割
来源：地理科学与资源研究所
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