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DOI	10.5194/acp-23-2079-2023
	Atmospheric nanoparticles hygroscopic growth measurement by a combined surface plasmon resonance microscope and hygroscopic tandem differential mobility analyzer
	Xie, Zhibo; Zhang, Jiaoshi; Gui, Huaqiao; Liu, Yang; Yang, Bo; Dai, Haosheng; Xiao, Hang; Zhang, Douguo; Chen, Da-Ren; Liu, Jianguo
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	2079
结束页码	2088
卷号	23 期号:3 页码:10
英文摘要	The hygroscopic growth of atmospheric aerosols plays an important role in regional radiation, cloud formation, and hence climate. Aerosol hygroscopic growth is often characterized by hygroscopic tandem differential mobility analyzers (HTDMAs), and Xie et al. (2020) recently demonstrated that hygroscopic growth measurements of a single particle are possible using a surface plasmon resonance microscope-azimuthal rotation illumination (SPRM-ARI). The hygroscopic properties of ambient aerosols are not uniform and often exhibit large relative humidity (RH) and size variabilities due to different chemical compositions and mixing states. To better understand the contribution of different aerosol components and establish a link between the apparent hygroscopic properties of single particles and bulk aerosols, we conduct combined hygroscopic growth measurements using a SPRM-ARI and an HTDMA as a case study to prove the concept (experimental information: 100-200 nm, during noontime on 28 September 2021 and 22 March 2022 in Hefei, China). According to the distinct hygroscopic growth behavior from single-particle probing using a SPRM-ARI, the individual particles can be classified into three categories defined as non-hygroscopic (NH), less hygroscopic (LH), and more hygroscopic (MH). The mean growth factor (GF) of the three categories can be utilized to reproduce the GF distribution obtained from the HTDMA measurement. The chemical compositions of individual particles from the three categories are identified to be organic carbon (OC), soot (mainly elemental carbon), fly ash, and secondary aerosols (mainly OC and sulfate), using scanning electron microscopy (SEM) with an energy-dispersive spectrometer (EDS). The coupled SPRM-HTDMA measurement suggests a size-dependent variation of aerosol chemical components, i.e., an increase of OC fraction with increasing particle sizes, which agrees reasonably well with the chemical compositions from collected aerosol samples. This likely links the hygroscopic properties of individual particles to their bulk hygroscopic growth and chemical composition.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000935028400001
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/273841
作者单位	Chinese Academy of Sciences; Anhui Institute of Optics & Fine Mechanics (AIOFM), CAS; Hefei Institutes of Physical Science, CAS; Chinese Academy of Sciences; Institute of Urban Environment, CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Virginia Commonwealth University; Washington University (WUSTL)
推荐引用方式 GB/T 7714	Xie, Zhibo,Zhang, Jiaoshi,Gui, Huaqiao,et al. Atmospheric nanoparticles hygroscopic growth measurement by a combined surface plasmon resonance microscope and hygroscopic tandem differential mobility analyzer[J],2023,23(3):10.
APA	Xie, Zhibo.,Zhang, Jiaoshi.,Gui, Huaqiao.,Liu, Yang.,Yang, Bo.,...&Liu, Jianguo.(2023).Atmospheric nanoparticles hygroscopic growth measurement by a combined surface plasmon resonance microscope and hygroscopic tandem differential mobility analyzer.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(3),10.
MLA	Xie, Zhibo,et al."Atmospheric nanoparticles hygroscopic growth measurement by a combined surface plasmon resonance microscope and hygroscopic tandem differential mobility analyzer".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.3(2023):10.