Distinct Ultrafine- and Accumulation-Mode Particle Properties in Clean and Polluted Urban Environments

doi:10.1029/2019GL084047

GSTDTAP > 气候变化

DOI	10.1029/2019GL084047
	Distinct Ultrafine- and Accumulation-Mode Particle Properties in Clean and Polluted Urban Environments
	Wang, Yuying 1,2; Li, Zhanqing 3,4; Zhang, Renyi 5,6; Jin, Xiaoai 2; Xu, Weiqi 7; Fan, Xinxin 2; Wu, Hao 2; Zhang, Fang 2; Sun, Yele 7; Wang, Qiuyan 1; Cribb, Maureen 3,4; Hu, Dawei 8
	2019-10-15
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2019
文章类型	Article;Early Access
语种	英语
国家	Peoples R China; USA; England
英文摘要	In this study, we report the phenomenon of fast changes in aerosol hygroscopicity between clean and polluted periods observed frequently in urban Beijing during winter using a hygroscopicity tandem mobility analyzer. The cause of this phenomenon and the formation process of particles in different modes are discussed. During clean periods, ultrafine-mode particles (i.e., nucleation and Aitken modes) stem mainly from nucleation events with subsequent growth. During heavily polluted periods, ultrafine-mode particles originate chiefly from primary emissions. Larger-mode particles like accumulation-mode particles are mainly from primary emissions during clean periods and aqueous reactions during polluted periods. This finding based on hygroscopicity tandem mobility analyzer measurements can make up the deficiency of mass-dependent instruments in analyzing sources and chemical processes of ultrafine-mode particles.
英文关键词	aerosol properties aerosol hygroscopicity H-TDMA aerosol formation process
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000490112700001
WOS关键词	SUBMICRON AEROSOLS ; HAZE FORMATION ; HYGROSCOPIC PROPERTIES ; CHEMICAL-COMPOSITION ; SUBURBAN SITE ; MIXING STATE ; CHINA ; SINGLE ; GROWTH
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/187667
专题	气候变化
作者单位	1.Nanjing Univ Informat Sci & Technol, Key Lab Aerosol Cloud Precipitat China Meteorol A, Nanjing, Jiangsu, Peoples R China; 2.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, State Key Lab Remote Sensing Sci, Beijing, Peoples R China; 3.Univ Maryland, ESSIC, College Pk, MD 20742 USA; 4.Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA; 5.Texas A&M Univ, Dept Atmospher Sci, Ctr Atmospher Chem & Environm, College Stn, TX USA; 6.Texas A&M Univ, Dept Chem, Ctr Atmospher Chem & Environm, College Stn, TX 77843 USA; 7.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing, Peoples R China; 8.Univ Manchester, Sch Earth & Environm Sci, Manchester, Lancs, England
推荐引用方式 GB/T 7714	Wang, Yuying,Li, Zhanqing,Zhang, Renyi,et al. Distinct Ultrafine- and Accumulation-Mode Particle Properties in Clean and Polluted Urban Environments[J]. GEOPHYSICAL RESEARCH LETTERS,2019.
APA	Wang, Yuying.,Li, Zhanqing.,Zhang, Renyi.,Jin, Xiaoai.,Xu, Weiqi.,...&Hu, Dawei.(2019).Distinct Ultrafine- and Accumulation-Mode Particle Properties in Clean and Polluted Urban Environments.GEOPHYSICAL RESEARCH LETTERS.
MLA	Wang, Yuying,et al."Distinct Ultrafine- and Accumulation-Mode Particle Properties in Clean and Polluted Urban Environments".GEOPHYSICAL RESEARCH LETTERS (2019).