Characterization of submicron aerosol particles in winter at Albany, New York

doi:10.1016/j.jes.2021.03.004

	Characterization of submicron aerosol particles in winter at Albany, New York
	Wei, Xiuli 1,2; Gui, Huaqiao 1,3; Liu, Jianguo 1,2; Cheng, Ying 1,2
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2022
卷号	111
关键词	Submicron particles Chemical composition Particle pH HR-ToF-AMS ISORRPIA-II model
ISSN号	1001-0742
DOI	10.1016/j.jes.2021.03.004
通讯作者	Wei, Xiuli(xlwei@aiofm.ac.cn) ; Gui, Huaqiao(hqgui@aiofm.ac.cn)
英文摘要	A thorough understanding of chemical composition, particle pH, and pollutant emissions is essential to address the climate and human health effects of atmospheric particles. In this study, we used a High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) and Scanning Mobility Particle Sizer (SMPS) to characterize the composition of submicron particles. Moreover, we applied the ISORROPIA-II model to analyze the particle acidity effect on the compositional characterization of submicron particles from December 22, 2016 to January 7, 2017 in Albany, New York, USA. The results indicated that aerosols with mobility diameter from SMPS in the range 200-400 nm were the main contributors to the mass during the measurement period. The dominance of organics (47%) and sulfate (16%) was similar to previous observations in the eastern United States in Winter 2015, while the fraction of nitrate (23%) was much higher. Moreover, nitrate could easily form at colder temperatures and lower RH levels even when there were more acidic particle periods during the measurement period in Albany. The ISORROPIA-II model indicated that there were more acidic particles, which was estimated using pH values. Lower temperature conditions tended to favor nitrate formation. The nitrate concentration exceeded that of sulfate in the measurement period, even though the SO2 and NOx emissions were similar. The organics in submicron particles were strongly influenced by the local emissions in winter. However, the inorganic compounds in submicron particles could be derived from regional transport as their pollution sources originated from different directions. This may help strategize emission reductions in the future. (C) 2021 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
资助项目	National Natural Science Foundation of China[91544218] ; National Natural Science Foundation of China[41905028] ; Science and Technological Fund of Anhui Province Province for Outstand-ing Youth[1808085J19] ; China Scholarship Council
WOS关键词	AIR-QUALITY ; MASS-SPECTROMETER ; SIZE DISTRIBUTION ; HAZE FORMATION ; ACIDITY ; FINE ; CHINA ; POLLUTION ; PH ; FIREWORKS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000750235100012
资助机构	National Natural Science Foundation of China ; Science and Technological Fund of Anhui Province Province for Outstand-ing Youth ; China Scholarship Council
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127918]
专题	中国科学院合肥物质科学研究院
通讯作者	Wei, Xiuli; Gui, Huaqiao
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230031, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
推荐引用方式 GB/T 7714	Wei, Xiuli,Gui, Huaqiao,Liu, Jianguo,et al. Characterization of submicron aerosol particles in winter at Albany, New York[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2022,111.
APA	Wei, Xiuli,Gui, Huaqiao,Liu, Jianguo,&Cheng, Ying.(2022).Characterization of submicron aerosol particles in winter at Albany, New York.JOURNAL OF ENVIRONMENTAL SCIENCES,111.
MLA	Wei, Xiuli,et al."Characterization of submicron aerosol particles in winter at Albany, New York".JOURNAL OF ENVIRONMENTAL SCIENCES 111(2022).