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Composition and major sources of organic compounds of aerosol particulate matter sampled during the ACE-Asia campaign

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Title: Composition and major sources of organic compounds of aerosol particulate matter sampled during the ACE-Asia campaign
Authors: Simoneit, Bernd R. T. Browse this author
Kobayashi, Minoru Browse this author
Mochida, Michihiro Browse this author
Kawamura, Kimitaka Browse this author →KAKEN DB
Lee, Meehye Browse this author
Lim, Ho-Jin Browse this author
Turpin, Barbara J. Browse this author
Komazaki, Yuichi Browse this author
Keywords: levoglucosan
organic aerosols
carboxylic acids
atmospheric aerosols
dicarboxylic acids
fatty acids
Issue Date: 17-Sep-2004
Publisher: American Geophysical Union
Journal Title: Journal of Geophysical Research. Atmosphere
Volume: 109
Issue: D19
Start Page: D19S10
Publisher DOI: 10.1029/2004JD004598
Abstract: The organic compound tracers of atmospheric particulate matter, as well as organic carbon (OC) and elemental carbon (EC), have been characterized for samples acquired during the ACEAsia campaign from Gosan, Jeju Island, Korea; Sapporo, Japan, and Chichi-jima Island in the western North Pacific, as well as on the NOAA R/V Ronald H. Brown. Total extracts were analyzed by GC-MS to determine both polar and aliphatic compounds. Total particles, organic matter and lipid and saccharide compounds were high during the Asian dust episode (early April 2001) compared to levels at other times. The organic matter can be apportioned to seven emission sources and to significant oxidation producing secondary products during long-range transport. Terrestrial natural background compounds are vascular plant wax lipids derived from direct emission and as part of desert sand dust. Fossil fuel utilization is obvious and derives from petroleum product and coal combustion emissions. Saccharides are a major polar (water-soluble) carbonaceous fraction derived from soil resuspension (agricultural activities). Biomass burning smoke is evident in all samples and seasons. It contributes up to 13% of the total compound mass as water-soluble constituents. Burning of refuse is another source of organic particles. Varying levels of marine-derived lipids are superimposed during aerosol transport over the ocean. Secondary oxidation products increase with increasing transport distance and time. The ACEAsia aerosols are comprised not only of desert dust, but also of soil dust, smoke from biomass and refuse burning, and emissions from fossil fuels use in urban areas.
Rights: An edited version of this paper was published by AGU. Copyright 2004 American Geophysical Union.
Type: article (author version)
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 河村 公隆

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