Magnetic signatures of natural and anthropogenic sources of urban dust aerosol

doi:10.5194/acp-19-731-2019

IEECAS OpenIR > 古环境研究室

	Magnetic signatures of natural and anthropogenic sources of urban dust aerosol
	Liu, Haijiao 1,2; Yan, Yan 3; Chang, Hong1,4 ; Chen, Hongyun 5; Liang, Lianji 6; Liu, Xingxing 1,4; Qiang, Xiaoke1,4 ; Sun, Youbin 1,4,7
通讯作者	Sun, Youbin(sunyb@ieecas.cn)
	2019-01-21
发表期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
卷号	19 期号:2 页码:731-745
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.
DOI	10.5194/acp-19-731-2019
关键词[WOS]	HEAVY-METAL POLLUTION ; PARTICULATE MATTER ; AIR-POLLUTION ; ASIAN DUST ; FLY-ASH ; SPATIAL VARIATION ; INDUSTRIAL SITES ; TRACE-ELEMENTS ; HAZE EVENTS ; STREET DUST
收录类别	SCI ; SCI
语种	英语
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
项目资助者	National Key Research and Development Program of China ; Open Foundation of State Key Laboratory of Loess and Quaternary Geology
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000456300700001
出版者	COPERNICUS GESELLSCHAFT MBH
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14405
专题	古环境研究室
通讯作者	Sun, Youbin
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 5.Chinese Acad Geol Sci, Res Ctr Loess & Global Changes, Inst Hydrogeol & Environm Geol, Shijiazhuang 050803, Hebei, Peoples R China 6.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China 7.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, 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.