Allen, Andrew G. and Miguel, Antonio H. (1995) Biomass Burning in the Amazon: Characterization of the Ionic Component of Aerosols Generated from Flaming and Smoldering Rainforest and Savannah. Environmental Science and Technology, 29 (2). pp. 486-493. ISSN 0013-936X. doi:10.1021/es00002a026. https://resolver.caltech.edu/CaltechAUTHORS:20180510-152206028
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Abstract
Samples (170) of biomass combustion smoke were obtained in Brazilian tropical rainforest and savannah during August-September 1992. Speciation of the ionic fraction of fine (d < 2 µm) and coarse (15 µm > d > 2 µm) mode particles was achieved using ion chromatography, and the data were interpreted according to geographical region, vegetation type, and phase of combustion. The species measured were CH_3COO^-, HCOO^-, CI^-, NO_3^-, SO_4^(2-), C_2O_4^(2-), PO_4^(3-), Na^+, NH_4^+, K^+, Mg^(2+), and Ca^(2+). Mean total ionic contents for the fine mode were 5.6% (Brasilia) and 2.2% (Rondonia) and for the coarse mode were 8.3% (Brasilia) and 13.7% (Rondonia). The fine mode ionic fraction was dominated by potassium, chloride, and sulfate, while calcium and acetate were important in the coarse mode. Highest ionic contributions were always observed during flaming combustion. Sources of aerosols were condensation/coagulation, release of partially combusted plant material, and suspension of soil particles.
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| Additional Information: | © 1995 American Chemical Society. Received for review June 8,1994. Revised manuscript received October 12, 1994. Accepted November 1, 1994. This work was funded by FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo). Partial support of National Research Council of Brazil (CNPq fellowship to A.H.M.) is also acknowledged. We thank Alcides Camargo Ribeiro and Ana Lucia M. Loureiro for assistance in sample preparation and Paulo Artaxo and Marcia Akemi Yamasoe for provision of support data. | ||||||
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| Issue or Number: | 2 | ||||||
| DOI: | 10.1021/es00002a026 | ||||||
| Record Number: | CaltechAUTHORS:20180510-152206028 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180510-152206028 | ||||||
| Official Citation: | Biomass Burning in the Amazon: Characterization of the Ionic Component of Aerosols Generated from Flaming and Smoldering Rainforest and Savannah Andrew G. Allen and Antonio H. Miguel Environmental Science & Technology 1995 29 (2), 486-493 DOI: 10.1021/es00002a026 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 86355 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | George Porter | ||||||
| Deposited On: | 14 May 2018 16:40 | ||||||
| Last Modified: | 15 Nov 2021 20:37 |
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