Risk Assessment of Heavy Metals in Street Dust Particles to a Stream Network
文献类型：期刊论文
| 作者 | Zhao, Hongtao ; Yin, Chengqing ; Chen, Meixue ; Wang, Weidong |
| 刊名 | SOIL & SEDIMENT CONTAMINATION
 |
| 出版日期 | 2009 |
| 卷号 | 18期号:2页码:173-183 |
| 关键词 | Size distribution land use pollutant load |
| 中文摘要 | Runoff with contaminated urban soil has an environmental risk to the aquatic environment. An assessment of heavy metals in street dust particles from a small town and their risks to the township stream network were conducted at Yangtze River delta. This assessment is based on measurement of heavy metal contents in dust particles with different particle sizes, river sediments, and suspended solids of urban runoff. The ranges of heavy metal content were 0.8-4.3, 16-380, 69-240, 9.3-350, 9.6-863 and 67-1170 mg/kg dry street dust, for Cr, Cu, Ni, Pb and Zn, respectively. Approximately 63%-71% of heavy metals were associated with particles less than 250 m; this particle size accounted for 40% of the total mass of street dusts. Of the five land use areas, the industrial areas had the highest heavy metal level. The smaller particle size fraction has a higher heavy metal content, low density, high mobility in runoff, and thus is a higher risk to the stream network. The topographical and hydrological features of the landscape also influence the transport of the contaminated street dusts to the aquatic environment. |
| WOS记录号 | WOS:000262906700005 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21735]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhao, Hongtao,Yin, Chengqing,Chen, Meixue,et al. Risk Assessment of Heavy Metals in Street Dust Particles to a Stream Network[J]. SOIL & SEDIMENT CONTAMINATION,2009,18(2):173-183. |
| APA | Zhao, Hongtao,Yin, Chengqing,Chen, Meixue,&Wang, Weidong.(2009).Risk Assessment of Heavy Metals in Street Dust Particles to a Stream Network.SOIL & SEDIMENT CONTAMINATION,18(2),173-183. |
| MLA | Zhao, Hongtao,et al."Risk Assessment of Heavy Metals in Street Dust Particles to a Stream Network".SOIL & SEDIMENT CONTAMINATION 18.2(2009):173-183. |
入库方式： OAI收割
来源：生态环境研究中心
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