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Chemical composition, sources and secondary processes of aerosols in Baoji city of northwest China
Wang, Y. C.1,2; Huang, R. J.1,4,5; Ni, H. Y.1; Chen, Y.1; Wang, Q. Y.1; Li, G. H.1; Tie, X. X.1; Shen, Z. X.6; Huang, Y.1; Liu, S. X.1; Dong, W. M.8; Xue, P.7; Frohlich, R.5; Canonaco, F.5; Elser, M.5; Daellenbach, K. R.5; Bozzetti, C.5; Haddad, I. El5; Prevot, A. S. H.5; Canagaratna, M. R.8; Worsnop, D. R.8; Cao, J. J.1,3
2017-06-01
Source PublicationATMOSPHERIC ENVIRONMENT
Volume158Issue:2017Pages:128-137
SubtypeArticle
AbstractParticulate air pollution is a severe environmental problem in China, affecting visibility, air quality, climate and human health. However, previous studies focus mainly on large cities such as Beijing, Shanghai, and Guangzhou. In this study, an Aerodyne Aerosol Chemical Speciation Monitor was deployed in Baoji, a middle size inland city in northwest China from 26 February to 27 March 2014. The non refractory submicron aerosol (NR-PM1) was dominated by organics (55%), followed by sulfate (16%), nitrate (15%), ammonium (11%) and chloride (3%). A source apportionment of the organic aerosol (OA) was performed with the Sofi (Source Finder) interface of ME-2 (Multilinear Engine), and six main sources/factors were identified and classified as hydrocarbon-like OA (HOA), cooking OA (COA), biomass burning OA (BBOA), coal combustion OA (CCOA), less oxidized oxygenated OA (LO-OOA) and more oxidized oxygenated OA (MO-OOA), which contributed 20%, 14%, 13%, 9%, 23% and 21% of total OA, respectively. The contribution of secondary components shows increasing trends from clean days to polluted days, indicating the importance of secondary aerosol formation processes in driving particulate air pollution. The formation of LO-OOA and MO-OOA is mainly driven by photochemical reactions, but significantly influenced by aqueous-phase chemistry during periods of low atmospheric oxidative capacity. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordAcsm Chemical Composition Organic Aerosol Source Apportionment Secondary Formation Processes
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1016/j.atmosenv.2017.03.026
WOS KeywordPOSITIVE MATRIX FACTORIZATION ; FINE PARTICULATE MATTER ; MASS-SPECTROMETER DATA ; YANGTZE-RIVER DELTA ; ORGANIC AEROSOL ; SOURCE APPORTIONMENT ; AIR-POLLUTION ; EVOLUTION PROCESSES ; MULTILINEAR ENGINE ; SUBMICRON AEROSOLS
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000401207900012
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5468
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
4.Xiamen Huaxia Univ, Ctr Atmospher & Marine Sci, Xiamen 361024, Peoples R China
5.PSI, Lab Atmospher Chem, CH-5232 Villigen, Switzerland
6.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China
7.Baoji Environm Monitoring Cent Stn, Baoji 721000, Peoples R China
8.Aerodyne Res Inc, Billerica, MA USA
Recommended Citation
GB/T 7714
Wang, Y. C.,Huang, R. J.,Ni, H. Y.,et al. Chemical composition, sources and secondary processes of aerosols in Baoji city of northwest China[J]. ATMOSPHERIC ENVIRONMENT,2017,158(2017):128-137.
APA Wang, Y. C..,Huang, R. J..,Ni, H. Y..,Chen, Y..,Wang, Q. Y..,...&Cao, J. J..(2017).Chemical composition, sources and secondary processes of aerosols in Baoji city of northwest China.ATMOSPHERIC ENVIRONMENT,158(2017),128-137.
MLA Wang, Y. C.,et al."Chemical composition, sources and secondary processes of aerosols in Baoji city of northwest China".ATMOSPHERIC ENVIRONMENT 158.2017(2017):128-137.
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