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| Titel |
Assessing the regional impact of indonesian biomass burning emissions based on organic molecular tracers and chemical mass balance modeling |
| VerfasserIn |
G. Engling, J. He, R. Betha, R. Balasubramanian |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 14, no. 15 ; Nr. 14, no. 15 (2014-08-13), S.8043-8054 |
| Datensatznummer |
250118939
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| Publikation (Nr.) |
 copernicus.org/acp-14-8043-2014.pdf |
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| Zusammenfassung |
| Biomass burning activities commonly occur in Southeast Asia (SEA), and are
particularly intense in Indonesia during the dry seasons. The effect of
biomass smoke emissions on air quality in the city state of Singapore was
investigated during a haze episode in October 2006. Substantially increased
levels of airborne particulate matter (PM) and associated chemical species
were observed during the haze period. Specifically, the enhancement in the
concentration of molecular tracers for biomass combustion such as
levoglucosan by as much as two orders of magnitude and the diagnostic ratios
of individual organic compounds indicated that biomass burning emissions
caused a regional smoke haze episode due to their long-range transport by
prevailing winds. With the aid of air mass backward trajectories and chemical
mass balance modeling, large-scale forest and peat fires in Sumatra and
Kalimantan were identified as the sources of the smoke aerosol, exerting a
significant impact on air quality in downwind areas, such as Singapore. |
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