DOI: 10.1002/jgrd.50477
论文题名: Structural analysis of aerosol particles by microscopic observation using a time-of-flight secondary ion mass spectrometer
作者: Takami A. ; Mayama N. ; Sakamoto T. ; Ohishi K. ; Irei S. ; Yoshino A. ; Hatakeyama S. ; Murano K. ; Sadanaga Y. ; Bandow H. ; Misawa K. ; Fujii M.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 12 起始页码: 6726
结束页码: 6737
语种: 英语
英文关键词: AMS
; black carbon
; elemental mapping
; FIB milling
; Fukue
Scopus关键词: Aerosols
; Secondary emission
; Secondary ion mass spectrometry
; Spacecraft instruments
; Spectrometers
; Sulfur compounds
; AMS
; Black carbon
; Elemental mapping
; FIB milling
; Fukue
; Agglomeration
; aerosol
; chemical composition
; mapping method
; mass spectrometry
; numerical model
; observational method
; organic matter
; Fukue Island
; Honshu
; Japan
; Kanto
; Kyushu
; Nagasaki [Kyushu]
; Tokyo [Kanto]
英文摘要: The chemical composition and structure of fine aerosol particles with diameters of less than 1 μm were analyzed in the spring of 2011 at Fukue Island, Japan, using an aerosol quadrupole mass spectrometer (Q-AMS, Aerodyne Research, Inc.) and a time-of-flight secondary ion mass spectrometer (TOF-SIMS). The Q-AMS results were similar to those of previous studies conducted at the same location, suggesting that the composition we observed is typical of this site. Based on the TOF-SIMS results, we classified the fine aerosol particles into three types: Type A, in which sulfate was covered with organic matter (OM); Type B, in which soil-containing particles with a diameter of 0.5 μm were associated with sulfate and OM; and Type C, in which black carbon (BC) and sulfate aggregates were associated with OM. During the observation period, the relative abundances of Type A, B, and C particles were 55%, 20%, and 25%, respectively. The structure, chemical composition, and the proportion of each type of particles provide information for a more representative particle model in radiative models. The relative abundance of Type C, i.e., BC-containing particles, is quite different to that in Tokyo, suggesting that Type C could be an indicator of transboundary air pollution, in this case from mainland China. Key Points Fine particles analyzed by TOF-SIMS and AMS Structure and chemical compositions were analyzed Fine particles were classified into three types © 2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63639
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: National Institute for Environmental Studies, 16-2, Onogawa, Tsukuba, Ibaraki 305-8506, Japan; Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama, Kanagawa, Japan; Graduate School of Electrical and Electronic Engineering, Kogakuin University, Hachioji, Tokyo, Japan; Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan; Faculty of Bioscience and Applied Chemistry, Hosei University, Koganei, Tokyo, Japan; Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka, Japan
Recommended Citation:
Takami A.,Mayama N.,Sakamoto T.,et al. Structural analysis of aerosol particles by microscopic observation using a time-of-flight secondary ion mass spectrometer[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(12)