气候变化领域集成服务门户(CCPortal): Multifunctional Products of Isoprene Oxidation in Polluted Atmosphere and Their Contribution to SOA

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DOI	10.1029/2020GL089276
	Multifunctional Products of Isoprene Oxidation in Polluted Atmosphere and Their Contribution to SOA
	Xu Z.N.; Nie W.; Liu Y.L.; Sun P.; Huang D.D.; Yan C.; Krechmer J.; Ye P.L.; Xu Z.; Qi X.M.; Zhu C.J.; Li Y.Y.; Wang T.Y.; Wang L.; Huang X.; Tang R.Z.; Guo S.; Xiu G.L.; Fu Q.Y.; Worsnop D.; Chi X.G.; Ding A.J.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:1
英文摘要	Isoprene (2-methyl-1, 3-butadiene) is a nonmethane volatile organic compound (VOC) with the largest global emission and high reactivity. The oxidation of isoprene is crucial to atmospheric photochemistry and contributes significantly to the global formation of secondary organic aerosol. Here, we conducted comprehensive observations in polluted megacities of Nanjing and Shanghai during summer of 2018. We identified multiple functionalized isoprene oxidation products, of which 72% and 88% of the total mole concentration were nitrogen-containing species with the dominant compound being C5 dihydroxyl dinitrate (C5H10N2O8). We calculated the volatility using the group-contribution method and estimated the particle-phase concentration by equilibrium gas/particle partitioning. The results showed that the multifunctional products derived from isoprene oxidation can contribute to 2.6% of the total organic aerosol mass (0.28 ± 0.27 μg/m3), highlighting the potential importance of isoprene oxidation in polluted regions. © 2020. The Authors.
英文关键词	Aerosols; Oxidation; Volatile organic compounds; Atmospheric photochemistry; Gas/particle partitioning; Global emissions; Group contribution method; Non-methane volatile organic compounds; Oxidation products; Particle phase concentrations; Secondary organic aerosols; Isoprene
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169249
作者单位	Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China; Jiangsu Provincial Collaborative Innovation Center of Climate Change, Nanjing, China; College of Environmental & Resource Sciences, Zhejiang UniversityZhejiang, China; Shanghai Academy of Environmental Sciences, Shanghai, China; Division of Atmospheric Sciences, Department of Physics, University of Helsinki, Helsinki, Finland; Center for Aerosol and Cloud Chemistry, Aerodyne Research Inc., Billerica, MA, United States; School of Environmental Science and Technology, Peking University, Beijing, China; State Environmental Protection Key Lab of Environmental Risk Assessment and Control on Chemical Processes, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, China; Shanghai Environmental Monitoring Center, Shanghai, China
推荐引用方式 GB/T 7714	Xu Z.N.,Nie W.,Liu Y.L.,et al. Multifunctional Products of Isoprene Oxidation in Polluted Atmosphere and Their Contribution to SOA[J],2021,48(1).
APA	Xu Z.N..,Nie W..,Liu Y.L..,Sun P..,Huang D.D..,...&Ding A.J..(2021).Multifunctional Products of Isoprene Oxidation in Polluted Atmosphere and Their Contribution to SOA.Geophysical Research Letters,48(1).
MLA	Xu Z.N.,et al."Multifunctional Products of Isoprene Oxidation in Polluted Atmosphere and Their Contribution to SOA".Geophysical Research Letters 48.1(2021).