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タイトル: Distribution of dicarboxylic acids and carbon isotopic compositions in aerosols from 1997 Indonesian forest fires
著者: Narukawa, M.
Kawamura, K.
Takeuchi, N.
Nakajima, T.
発行日: 1999年10月15日
出版者: American Geophysical Union
掲載誌情報: Geophysical Research Letters. Vol. 26, No. 20, 15 October 1999, pp. 3101-3104
関連URI: http://www.agu.org/pubs/crossref/1999/1999GL010810.shtml
抄録: Fine aerosol particles collected in Southeast Asia during 1997 Indonesian forest fires were studied for the concentrations of total carbon (TC), water-soluble organic carbon (WSOC) and low molecular weight dicarboxylic acids (C2-C12) as well as carbon isotopic ratios of TC (δ13CTC). TC and WSOC showed a large increase during the heavy forest fire event. At the same period, dicarboxylic acids, dominated by oxalic (C2) followed by succinic (C4) and malonic (C3) acids, also showed a concentration increase. Furthermore, the δ13CTC showed a decrease from ca. -25.5 to -27.5‰ during an intensified forest fire event, suggesting an addition of organic aerosols derived from C3 plants whose δ13C are lighter. These results indicate that the aerosol particles in Southeast Asia were significantly affected by the combustion processes of vegetations during the 1997 Indonesian forest fires that were extensively induced by El Ninõevent.
URI: http://hdl.handle.net/2261/51857
ISSN: 00948276
出現カテゴリ:014 自然科学
1391010 学術雑誌

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