Magnetic signatures of natural and anthropogenic sources of urban dust aerosol
文献类型：期刊论文
| 作者 | Liu, Haijiao2,3; Yan, Yan4; Chang, Hong2,7 ; Chen, Hongyun1; Liang, Lianji6; Liu, Xingxing2,7; Qiang, Xiaoke2,7; Sun, Youbin2,5,7
|
| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2019-01-21 |
| 卷号 | 19期号:2页码:731-745 |
| ISSN号 | 1680-7316 |
| DOI | 10.5194/acp-19-731-2019 |
| 通讯作者 | Sun, Youbin(sunyb@ieecas.cn) |
| 英文摘要 | The characteristics of urban dust aerosols and the contributions of their natural and anthropogenic sources are of scientific interest as well as being of substantial sociopolitical and economic concern. Here we present a comprehensive study of dust flux, magnetic parameters, magnetic particulate morphology, and elemental compositions of atmospheric dustfall originating from natural dust sources in East Asia and local anthropogenic sources in Xi'an, China. The results reveal a significant inverse relationship between seasonal variations of dust flux and magnetic susceptibility (chi). By comparing dust flux and chi records, the relative contributions of dust from local anthropogenic sources are estimated. Analyses using scanning electron microscopy (SEM) combined with energy dispersive spectroscopy (EDS) indicate that magnetic particulate from different sources has distinct morphological and elemental characteristics. Detrital magnetic particles originating from natural sources are characterized by relatively smooth surfaces with Fe and O as the major elements and a minor contribution from Ti. The anthropogenic particles have angular, spherical, aggregate, and porous shapes with distinctive contributions from marker elements, including S, Cr, Cu, Zn, Ni, Mn, and Ca. Our results demonstrate that this multidisciplinary approach is effective in distinguishing dust particles derived from distant natural sources and local anthropogenic sources and for the quantitative assessment of contributions from the two end-members. |
| WOS关键词 | HEAVY-METAL POLLUTION ; PARTICULATE MATTER ; AIR-POLLUTION ; ASIAN DUST ; FLY-ASH ; SPATIAL VARIATION ; INDUSTRIAL SITES ; TRACE-ELEMENTS ; HAZE EVENTS ; STREET DUST |
| 资助项目 | National Key Research and Development Program of China[2016YFA0601902] ; Open Foundation of State Key Laboratory of Loess and Quaternary Geology[SKLLQG1631] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000456300700001 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| 资助机构 | National Key Research and Development Program of China ; Open Foundation of State Key Laboratory of Loess and Quaternary Geology |
| 源URL | [http://ir.ieecas.cn/handle/361006/14404]  |
| 专题 | 地球环境研究所_古环境研究室 |
| 通讯作者 | Sun, Youbin |
| 作者单位 | 1.Chinese Acad Geol Sci, Res Ctr Loess & Global Changes, Inst Hydrogeol & Environm Geol, Shijiazhuang 050803, Hebei, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China 5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Shaanxi, Peoples R China 6.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China 7.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Haijiao,Yan, Yan,Chang, Hong,et al. Magnetic signatures of natural and anthropogenic sources of urban dust aerosol[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(2):731-745. |
| APA | Liu, Haijiao.,Yan, Yan.,Chang, Hong.,Chen, Hongyun.,Liang, Lianji.,...&Sun, Youbin.(2019).Magnetic signatures of natural and anthropogenic sources of urban dust aerosol.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(2),731-745. |
| MLA | Liu, Haijiao,et al."Magnetic signatures of natural and anthropogenic sources of urban dust aerosol".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.2(2019):731-745. |
入库方式： OAI收割
来源：地球环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。