Status已發表Published
Aqueous production of secondary organic aerosol from fossil-fuel emissions in winter Beijing haze
Wang, J.; Ye, J.; Zhang, Q.; Zhao, J.; Wu, Y.; Li, J.; Liu, D.; Li, W.; Zhang, Y.; Wu, C.; Xie, C.; Qin, Y.; Lei, Y.; Huang, X.; Guo, J.; Liu, P.; Fu, P.; Li, Y.J.; Lee, H.C.; Choi, H.; Zhang, J.; Liao, H.; Chen, M.; Sun, Y.; Ge, X.; Martin, S.T.; Jacob, D.J.
2021-02-23
Source PublicationProceedings of the National Academy of Sciences
ISSN1091-6490
PagesIn press-000
AbstractSecondary organic aerosol (SOA) produced by atmospheric oxidation of primary emitted precursors is a major contributor to fine particulate matter (PM2.5) air pollution worldwide. Observations during winter haze pollution episodes in urban China show that most of this SOA originates from fossil-fuel combustion but the chemical mechanisms involved are unclear. Here we report field observations in a Beijing winter haze event that reveal fast aqueous-phase conversion of fossil-fuel primary organic aerosol (POA) to SOA at high relative humidity. Analyses of aerosol mass spectra and elemental ratios indicate that ring-breaking oxidation of POA aromatic species, leading to functionalization as carbonyls and carboxylic acids, may serve as the dominant mechanism for this SOA formation. A POA origin for SOA could explain why SOA has been decreasing over the 2013–2018 period in response to POA emission controls even as emissions of volatile organic compounds (VOCs) have remained flat.
KeywordAqueous phase SOA haze
URLView the original
Language英語English
The Source to ArticlePB_Publication
PUB ID56512
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorGe, X.; Jacob, D.J.
Recommended Citation
GB/T 7714
Wang, J.,Ye, J.,Zhang, Q.,et al. Aqueous production of secondary organic aerosol from fossil-fuel emissions in winter Beijing haze[J]. Proceedings of the National Academy of Sciences,2021:In press-000.
APA Wang, J..,Ye, J..,Zhang, Q..,Zhao, J..,Wu, Y..,Li, J..,Liu, D..,Li, W..,Zhang, Y..,Wu, C..,Xie, C..,Qin, Y..,Lei, Y..,Huang, X..,Guo, J..,Liu, P..,Fu, P..,Li, Y.J..,Lee, H.C..,...&Jacob, D.J..(2021).Aqueous production of secondary organic aerosol from fossil-fuel emissions in winter Beijing haze.Proceedings of the National Academy of Sciences,In press-000.
MLA Wang, J.,et al."Aqueous production of secondary organic aerosol from fossil-fuel emissions in winter Beijing haze".Proceedings of the National Academy of Sciences (2021):In press-000.
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
[Wang, J.]'s Articles
[Ye, J.]'s Articles
[Zhang, Q.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, J.]'s Articles
[Ye, J.]'s Articles
[Zhang, Q.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, J.]'s Articles
[Ye, J.]'s Articles
[Zhang, Q.]'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.