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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). |
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