气候变化领域集成服务门户(CCPortal): Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds

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DOI	10.5194/acp-21-7773-2021
	Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds
	Li J.; Li H.; Li K.; Chen Y.; Zhang H.; Zhang X.; Wu Z.; Liu Y.; Wang X.; Wang W.; Ge M.
发表日期	2021
ISSN	1680-7316
起始页码	7773
结束页码	7789
卷号	21 期号:10
英文摘要	Vehicular exhaust is one of the important contribution sources of secondary organic aerosol (SOA) in urban areas. Long-chain alkanes and aromatic hydrocarbons are included in gaseous organic pollutants of vehicle emissions, representative of diesel and gasoline vehicles respectively. In this work, the SOA production from individual anthropogenic volatile organic compounds (AVOCs) (n-dodecane, 1,3,5-trimethylbenzene) and mixed AVOCs (n-dodecane C 1,3,5-trimethylbenzene) was studied with a large-scale outdoor smog chamber. Results showed that the SOA formation from the mixed AVOCs was enhanced compared to the predicted SOA mass concentration based on the SOA yield of individual AVOCs. According to the results of mass spectrometry analysis with electrospray ionization time-of-flight mass spectrometry (ESI-ToF-MS), interaction occurred between intermediate products from the two precursors, which could be the main reason for the enhanced SOA production from the mixed AVOC reaction system. The study results could improve our understanding about the contribution of representative precursors from vehicular exhaust to the formation of SOA in urban areas. This study also indicates that further studies on SOA chemistry from the mixed VOC reaction system are needed, as the interactions between them and the effect on SOA formation can give us a further understanding of the SOA formed in the atmosphere. © 2021 Author(s).
语种	英语
scopus关键词	aerosol composition; aerosol formation; alkane; mass spectrometry; photooxidation; volatile organic compound
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246872
作者单位	State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, 5232, Switzerland; State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
推荐引用方式 GB/T 7714	Li J.,Li H.,Li K.,et al. Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds[J],2021,21(10).
APA	Li J..,Li H..,Li K..,Chen Y..,Zhang H..,...&Ge M..(2021).Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(10).
MLA	Li J.,et al."Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.10(2021).