Authors: Subramanian, R.; Roden, Christoph A.; Boparai, Poonam; Bond, Tami C.

Source: Aerosol Science and Technology, Volume 41, Number 6, June 2007 , pp. 630-637(8)

Publisher: Taylor and Francis Ltd

Abstract:

Particulate emissions from low-temperature biomass burning are dominated by organic matter. Here, we show that such emissions have a liquid, bead-like appearance when collected on fibrous filters, and the number of these beads are far less than expected for solid spherical particles. These shapes are in line with published drop-on-fiber theories for liquids entrained on filaments. A smoldering pine sample is yellowish, with organic carbon over 99% of the total carbon, and chars substantially in thermal-optical analysis (TOA), indicating that such liquid organic particles could affect both absorption measurements and TOA of such samples. Similar colored samples collected in the field from rice-straw burning and cook stove emissions also show a similar liquid appearance.

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Document Type: Research article

DOI: http://dx.doi.org/10.1080/02786820701344589

Affiliations: 1: Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA

Publication date: 2007-06-01

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