气候变化领域集成服务门户(CCPortal): Investigating three patterns of new particles growing to the size of cloud condensation nuclei in Beijing's urban atmosphere

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DOI	10.5194/acp-21-183-2021
	Investigating three patterns of new particles growing to the size of cloud condensation nuclei in Beijing's urban atmosphere
	Ma L.; Zhu Y.; Zheng M.; Sun Y.; Huang L.; Liu X.; Gao Y.; Shen Y.; Gao H.; Yao X.
发表日期	2021
ISSN	1680-7316
起始页码	183
结束页码	200
卷号	21 期号:1
英文摘要	The growth of newly formed particles with diameters from ~10 nm to larger sizes was investigated in Beijing's urban atmosphere during 10-23 December 2011, 12-27 April 2012, and June-August 2014. In 11 out of 27 new particle formation (NPF) events during June-August, the maximum geometric median diameter (Dpgmax) of newly formed particles exceeded 75 nm, and the grown new particles may contribute to the population of cloud condensation nuclei. In contrast, no apparent growth in new particles with Dpgmax<20 nm was observed in all of the events in December, in approximately half of the NPF events in April, and in only two events during June-August. New particles observed in the latter NPF events were too small to be activated as cloud condensation nuclei. Apparent new particle growth with Dpgmax≤50 nm was observed in the remaining 18 NPF events. The 11 NPF events during June-August with Dpgmaxexceeding 75 nm were analyzed in detail. The particle growth patterns can be clearly classified into three types: one-stage growth and two-stage growth-A and growth-B patterns. The one-stage growth pattern is characterized by a continuous increase in Dpgwith Dpgmax≥80 nm (4 out of 11 NPF events), and the two-stage growth-A and growth-B patterns are characterized by no apparent growth and shrinkage of particles, respectively, in the middle 2-4 h of the growth period (7 out of 11 NPF events). Combining the observations of gaseous pollutants and measured (or modeled) concentrations of particulate chemical species, the three growth patterns were discussed in terms of the spatial heterogeneity of NPF, formation of secondary aerosols, and evaporation of semivolatile particulates. Secondary organic species and NH4NO3were argued to be two major contributors to the growth of new particles, but NH4NO3likely contributed to growth only in the late afternoon and/or at nighttime. © 2021 American Institute of Physics Inc.. All rights reserved.
英文关键词	aerosol; aerosol composition; cloud condensation nucleus; concentration (composition); formation mechanism; growth rate; particle size; urban atmosphere; Beijing [Beijing (ADS)]; Beijing [China]; China
语种	英语
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/168849
作者单位	Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; Environment Research Institute, Shandong University, Qingdao, 266237, China; State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
推荐引用方式 GB/T 7714	Ma L.,Zhu Y.,Zheng M.,et al. Investigating three patterns of new particles growing to the size of cloud condensation nuclei in Beijing's urban atmosphere[J],2021,21(1).
APA	Ma L..,Zhu Y..,Zheng M..,Sun Y..,Huang L..,...&Yao X..(2021).Investigating three patterns of new particles growing to the size of cloud condensation nuclei in Beijing's urban atmosphere.Atmospheric Chemistry and Physics,21(1).
MLA	Ma L.,et al."Investigating three patterns of new particles growing to the size of cloud condensation nuclei in Beijing's urban atmosphere".Atmospheric Chemistry and Physics 21.1(2021).