气候变化领域集成服务门户(CCPortal): Sulfuric acid-amine nucleation in urban Beijing

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DOI	10.5194/acp-21-2457-2021
	Sulfuric acid-amine nucleation in urban Beijing
	Cai R.; Yan C.; Yang D.; Yin R.; Lu Y.; Deng C.; Fu Y.; Ruan J.; Li X.; Kontkanen J.; Zhang Q.; Kangasluoma J.; Ma Y.; Hao J.; Worsnop D.R.; Bianchi F.; Paasonen P.; Kerminen V.-M.; Liu Y.; Wang L.; Zheng J.; Kulmala M.; Jiang J.
发表日期	2021
ISSN	1680-7316
起始页码	2457
结束页码	2468
卷号	21 期号:4
英文摘要	New particle formation (NPF) is one of the major sources of atmospheric ultrafine particles. Due to the high aerosol and trace gas concentrations, the mechanism and governing factors for NPF in the polluted atmospheric boundary layer may be quite different from those in clean environments, which is however less understood. Herein, based on long-term atmospheric measurements from January 2018 to March 2019 in Beijing, the nucleation mechanism and the influences of H2SO4 concentration, amine concentrations, and aerosol concentration on NPF are quantified. The collision of H2SO4-amine clusters is found to be the dominating mechanism to initialize NPF in urban Beijing. The coagulation scavenging due to the high aerosol concentration is a governing factor as it limits the concentration of H2SO4- amine clusters and new particle formation rates. The formation of H2SO4-amine clusters in Beijing is sometimes limited by low amine concentrations. Summarizing the synergistic effects of H2SO4 concentration, amine concentrations, and aerosol concentration, we elucidate the governing factors for H2SO4-amine nucleation for various conditions. © Author(s) 2021.
语种	英语
scopus关键词	aerosol; coagulation; concentration (composition); nucleation; particulate matter; sulfuric acid; urban area; Beijing [Beijing (ADS)]; Beijing [China]; China
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/247134
作者单位	Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China; State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, 00014, Finland; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China; Aerodyne Research Inc., Billerica, MA 01821, United States
推荐引用方式 GB/T 7714	Cai R.,Yan C.,Yang D.,et al. Sulfuric acid-amine nucleation in urban Beijing[J],2021,21(4).
APA	Cai R..,Yan C..,Yang D..,Yin R..,Lu Y..,...&Jiang J..(2021).Sulfuric acid-amine nucleation in urban Beijing.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(4).
MLA	Cai R.,et al."Sulfuric acid-amine nucleation in urban Beijing".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.4(2021).