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Secondary organic aerosol formed by condensing anthropogenic vapours over China’s megacities
Nie, Wei1,2; Yan, Chao1,3,4; Huang, Dan Dan5; Wang, Zhe6; Liu, Yuliang1,2; Qiao, Xiaohui7; Guo, Yishuo3; Tian, Linhui8; Zheng, Penggang6,9; Xu, Zhengning1,2; Li, Yuanyuan1,2; Xu, Zheng1,2; Qi, Ximeng1,2; Sun, Peng1,2; Wang, Jiaping1,2; Zheng, Feixue3; Li, Xiaoxiao7; Yin, Rujing7; Dallenbach, Kaspar R.4,10; Bianchi, Federico4; Petäjä, Tuukka1,4; Zhang, Yanjun4; Wang, Mingyi11; Schervish, Meredith11; Wang, Sainan12; Qiao, Liping5; Wang, Qian5; Zhou, Min5; Wang, Hongli5; Yu, Chuan9; Yao, Dawen9; Guo, Hai9; Ye, Penglin13; Lee, Shuncheng9; Li, Yong Jie8; Liu, Yongchun3; Chi, Xuguang1; Kerminen, Veli Matti1,4; Ehn, Mikael4; Donahue, Neil M.11; Wang, Tao9; Huang, Cheng5; Kulmala, Markku1,3,4; Worsnop, Douglas4,13; Jiang, Jingkun7; Ding, Aijun1,2,14
2022-04-08
Source PublicationNature Geoscience
ISSN1752-0894
Volume15Issue:4Pages:255-261
Abstract

Secondary organic aerosol contributes a significant fraction to aerosol mass and toxicity. Low-volatility organic vapours are critical intermediates connecting the oxidation of volatile organic compounds to secondary organic aerosol formation. However, the direct measurement of intermediate vapours poses a great challenge. Here we present coordinated measurements of oxygenated organic molecules in the three most urbanized regions of China and determine their likely precursors, enabling us to connect secondary organic aerosol formation to various volatile organic compounds. We show that the oxidation of anthropogenic volatile organic compounds dominates oxygenated organic molecule formation, with an approximately 40% contribution from aromatics and a 40% contribution from aliphatic hydrocarbons (predominantly alkanes), a previously under-accounted class of volatile organic compounds. The irreversible condensation of these anthropogenic oxygenated organic molecules increases significantly in highly polluted conditions, accounting for a major fraction of the production of secondary organic aerosol. We find that the distribution of oxygenated organic molecules and their formation pathways are largely the same across the urbanized regions. This suggests that uniform mitigation strategies could be effective in solving air pollution issues across these highly populated city clusters.

DOI10.1038/s41561-022-00922-5
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000781177500003
PublisherNATURE PORTFOLIOHEIDELBERGER PLATZ 3, BERLIN 14197, GERMANY
Scopus ID2-s2.0-85127723179
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Faculty of Science and Technology
Corresponding AuthorJiang, Jingkun; Ding, Aijun
Affiliation1.Joint International Research Laboratory of Atmospheric and Earth System Research, School of Atmospheric Sciences, Nanjing University, Nanjing, China
2.National Observation and Research Station for Atmospheric Processes and Environmental Change in Yangtze River Delta, Nanjing, Jiangsu Province, China
3.Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
4.Institute for Atmospheric and Earth System Research / Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
5.State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, China
6.Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong
7.State Key Joint Laboratory of Environment Simulation and Pollution Control, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, School of Environment, Tsinghua University, Beijing, China
8.Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macao
9.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
10.Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
11.Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, United States
12.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
13.Aerodyne Research Inc., Billerica, United States
14.Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, China
Recommended Citation
GB/T 7714
Nie, Wei,Yan, Chao,Huang, Dan Dan,et al. Secondary organic aerosol formed by condensing anthropogenic vapours over China’s megacities[J]. Nature Geoscience, 2022, 15(4), 255-261.
APA Nie, Wei., Yan, Chao., Huang, Dan Dan., Wang, Zhe., Liu, Yuliang., Qiao, Xiaohui., Guo, Yishuo., Tian, Linhui., Zheng, Penggang., Xu, Zhengning., Li, Yuanyuan., Xu, Zheng., Qi, Ximeng., Sun, Peng., Wang, Jiaping., Zheng, Feixue., Li, Xiaoxiao., Yin, Rujing., Dallenbach, Kaspar R.., ...& Ding, Aijun (2022). Secondary organic aerosol formed by condensing anthropogenic vapours over China’s megacities. Nature Geoscience, 15(4), 255-261.
MLA Nie, Wei,et al."Secondary organic aerosol formed by condensing anthropogenic vapours over China’s megacities".Nature Geoscience 15.4(2022):255-261.
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