Using an innovative flag element ratio approach to tracking potential sources of heavy metals on urban road surfaces
文献类型：期刊论文
| 作者 | Guan, Yuntao; Zhao, Xu; Liu, An; Zhu, Panfeng; Hong, Nian |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2018-01-12 |
| 卷号 | 243页码:410-417 |
| 关键词 | Stormwater reuse Heavy metals Source tracking Urban road surfaces |
| ISSN号 | 0269-7491 |
| 文献子类 | Article |
| 英文摘要 | Heavy metals deposited on urban road surfaces can be washed-off by stormwater runoff, undermining stormwater reuse safety due to their high toxicity to ecological and human health. Heavy metals on urban road surfaces come from diverse sources and tracking these sources is essential to effectively manage stormwater and hence its reuse safety. This research study developed an innovative approach to tracking sources of heavy metals using data collected in Shenzhen, China. This approach developed was based on a "flag element ratio" theory, where each source generally corresponds to a specific ratio of targeted pollutants to the flag element. It is noted that Cr, Cu, Pb, Ni, and Zn on urban roads were 19.05 mg/kg to 152.01 mg/kg, 25.66 mg/kg to 310.75 mg/kg, 15.61 mg/kg to 220.35 mg/kg, 10.65 mg/kg to 100.28 mg/kg, and 138.14 mg/kg to 1047.05 mg/kg, respectively. Gasoline emission was the main source for Cr, Ni and Pb, while braking wear and tyre wear were the major sources of Cu and Zn, respectively. Furthermore, the rankings of sources of each heavy metal in terms of their contributions were obtained by using this approach. Vehicle exhaust was found as the main contributor for all the heavy metals on urban road surfaces. This highlighted that vehicle exhaust should be seriously considered in terms of controlling heavy metal pollution on urban road surfaces and hence resulting urban road stormwater runoff. (C) 2018 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41433]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Guan, Yuntao,Zhao, Xu,Liu, An,et al. Using an innovative flag element ratio approach to tracking potential sources of heavy metals on urban road surfaces[J]. ENVIRONMENTAL POLLUTION,2018,243:410-417. |
| APA | Guan, Yuntao,Zhao, Xu,Liu, An,Zhu, Panfeng,&Hong, Nian.(2018).Using an innovative flag element ratio approach to tracking potential sources of heavy metals on urban road surfaces.ENVIRONMENTAL POLLUTION,243,410-417. |
| MLA | Guan, Yuntao,et al."Using an innovative flag element ratio approach to tracking potential sources of heavy metals on urban road surfaces".ENVIRONMENTAL POLLUTION 243(2018):410-417. |
入库方式： OAI收割
来源：生态环境研究中心
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