IEECAS OpenIR  > 粉尘与环境研究室
Chemical characteristics of airborne particles in Xi'an, inland China during dust storm episodes: Implications for heterogeneous formation of ammonium nitrate and enhancement of N-deposition
Wu, C (Wu, Can)[ 1,4 ] ;  Wang, GH (Wang, Gehui)[ 1,2,3,4,5 ] ;  Cao, C (Cao, Cong)[ 1,4 ] ;  Li, JJ (Li, Jianjun)[ 1 ] ;  Li, J (Li, Jin)[ 1,4 ] ;  Wu, F (Wu, Feng)[ 1 ] ;  Huang, RJ (Huang, Rujin)[ 1 ] ;  Cao, JJ (Cao, Junji)[ 1 ] ;  Han, YM (Han, Yongmin)[ 1 ] ;  Ge, SS (Ge, Shuangshuang)[ 2 ] ;  Xie, YN (Xie, Yuning)[ 2 ] ;  Xue, GY (Xue, Guoyan)[ 2 ] ;  Wang, XP (Wang, Xinpei)[ 2 ]
2019-01
Source PublicationENVIRONMENTAL POLLUTION
Volume244Pages:877-884
Contribution Rank1
AbstractTo identify the sources and heterogeneous reactions of sulfate and nitrate with dust in the atmosphere, airborne particles in Xi'an, inland China during the spring of 2017 were collected and measured for chemical compositions, along with a laboratory simulation of the heterogeneous formation of ammonium nitrate on the dust surface. Our results showed that concentrations of Ca2+, Na+ and Cl- in the TSP samples were enhanced in the dust events, with the values of 41.8, 5.4 and 4.0 mu g m(-3), respectively, while NO3- (7.1 mu g m(-3)) and NH4+ (2.4 mu g m(-3)) remarkably decreased, compared to those in the non-dust periods. During the dust events, NH4+ correlated only with NO3- (R-2 = 0.52) and abundantly occurred in the coarse mode (>2.1 mu m), in contrast to that in the non-dust periods, which well correlated with sulfate and nitrate and enriched in the fine mode (<2.1 mu m). SO42- in Xi'an during the dust events existed mostly as gypsum (CaSO4 center dot 2H(2)O) and mirabilite (Na2SO4 center dot 10H(2)O) and dominated in the coarse mode, suggesting that they were directly transported from the upwind Gobi Desert region. Our laboratory simulation results showed that during the long-range transport hygroscopic salts in the Gobi dust such as mirabilite can absorb water vapor and form a liquid phase on the particle surface, then gaseous NH3 and HNO3 partition into the aqueous phase and form NH4NO3, resulting in the strong correlation of NH4+ with NO3- and their accumulation on dust particles. The dry deposition flux of total inorganic nitrogen (NH4+ + NO3-) in Xi'an during the dust events was 0.97 mg-N m(-2) d(-1) and 37% higher than that in the non-dust periods. Such a significant enhanced N-deposition is ascribed to the heterogeneous formation of NH4NO3 on the dust particle surface, which has been ignored and should be included in future model simulations. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordASIAN DUST MINERAL DUST NITROGEN DEPOSITION DRY DEPOSITION ATMOSPHERIC AEROSOLS DESERT DUST SIZE EVENTS IMPACT CHEMISTRY
DOI10.1016/j.envpol.2018.10.019
Language英语
WOS IDWOS:000452940700094
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/11274
Collection粉尘与环境研究室
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.East China Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Informat Sci, Shanghai 210062, Peoples R China
3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China
Recommended Citation
GB/T 7714
Wu, C , Wang, GH , Cao, C ,et al. Chemical characteristics of airborne particles in Xi'an, inland China during dust storm episodes: Implications for heterogeneous formation of ammonium nitrate and enhancement of N-deposition[J]. ENVIRONMENTAL POLLUTION,2019,244:877-884.
APA Wu, C ., Wang, GH ., Cao, C ., Li, JJ ., Li, J .,...& Wang, XP .(2019).Chemical characteristics of airborne particles in Xi'an, inland China during dust storm episodes: Implications for heterogeneous formation of ammonium nitrate and enhancement of N-deposition.ENVIRONMENTAL POLLUTION,244,877-884.
MLA Wu, C ,et al."Chemical characteristics of airborne particles in Xi'an, inland China during dust storm episodes: Implications for heterogeneous formation of ammonium nitrate and enhancement of N-deposition".ENVIRONMENTAL POLLUTION 244(2019):877-884.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wu, C (Wu, Can)[ 1,4 ] ]'s Articles
[ Wang, GH (Wang, Gehui)[ 1,2,3,4,5 ] ]'s Articles
[ Cao, C (Cao, Cong)[ 1,4 ] ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wu, C (Wu, Can)[ 1,4 ] ]'s Articles
[ Wang, GH (Wang, Gehui)[ 1,2,3,4,5 ] ]'s Articles
[ Cao, C (Cao, Cong)[ 1,4 ] ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wu, C (Wu, Can)[ 1,4 ] ]'s Articles
[ Wang, GH (Wang, Gehui)[ 1,2,3,4,5 ] ]'s Articles
[ Cao, C (Cao, Cong)[ 1,4 ] ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.