Contribution of road dust from Low Impact Development (LID) construction sites to atmospheric pollution from heavy metals
文献类型：期刊论文
| 作者 | Ma, Yukun; Gong, Manli; Zhao, Hongtao ; Li, Xuyong
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2020 |
| 卷号 | 698页码:1-11 |
| 关键词 | Atmospheric particle pollution Road dust Heavy metals Ecological risk assessment Low Impact Development |
| ISSN号 | 0048-9697 |
| 英文摘要 | The re-suspension of road dust due to intense Low Impact Development (UD) construction activities may be a major contributor to atmospheric metal pollution. However, the distribution characteristics, mobility potential, and pollutant load of atmospheric particles at LID construction sites are not clear. Consequently, management practices to mitigate air pollution from LID construction arc lacking. We investigated the atmospheric metal pollution from road dust produced during different construction stages of rain gardens and porous pavements and estimated the ecological risks posed by the heavy metals. Although concentrations of heavy metals in road dust at LID construction sites were lower than at sites without LID construction, the ecological risks posed by the atmospheric heavy metals at LID construction sites were generally higher due to the greater mass of road dust produced during LID construction. Hence, LID management practices should focus on the removal of road dust, especially finer particles (<44 mu m) produced during early construction stages. In roads, the zones influenced by LID construction is related to road types based on traff ic volume; these road types in descending order of zone influenced by LID construction are: arterial road (400-600 m) > collector road (100-150 m) > access road (50-100 m) > laneway (30-50 m). Based on the study sites, we estimate UD construction in China will contribute 231 and 623 times as much as the current load of atmospheric particles by 2020 and 2030; and we project atmospheric heavy metals will be 1.45-2.18 and 2.82-4.73 times greater than the current load by 2020 and 2030 from the intense LID construction. Based on our results, several regulatory recommendations are presented to mitigate air pollution at LID construction sites. (C) 2019 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44252]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ma, Yukun,Gong, Manli,Zhao, Hongtao,et al. Contribution of road dust from Low Impact Development (LID) construction sites to atmospheric pollution from heavy metals[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,698:1-11. |
| APA | Ma, Yukun,Gong, Manli,Zhao, Hongtao,&Li, Xuyong.(2020).Contribution of road dust from Low Impact Development (LID) construction sites to atmospheric pollution from heavy metals.SCIENCE OF THE TOTAL ENVIRONMENT,698,1-11. |
| MLA | Ma, Yukun,et al."Contribution of road dust from Low Impact Development (LID) construction sites to atmospheric pollution from heavy metals".SCIENCE OF THE TOTAL ENVIRONMENT 698(2020):1-11. |
入库方式： OAI收割
来源：生态环境研究中心
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