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HETEROGENEOUS SOOT NANOSTRUCTURE IN ATMOSPHERIC AND COMBUSTION SOURCE AEROSOLS
Citation:
HAYS, M. D. AND R. L. VANDER WAL. HETEROGENEOUS SOOT NANOSTRUCTURE IN ATMOSPHERIC AND COMBUSTION SOURCE AEROSOLS. web, ENERGY AND FUELS. American Chemical Society, Washington, DC, 21(2):801-811, (2007).
Impact/Purpose:
journal article
Description:
Microscopic images of soot emissions from wildfire and a wide range of anthropogenic combustion sources show that the nanostructures of individual particles in these emissions are predominantly heterogeneous, decidedly influenced by the fuel composition and by the particular combustion process the fuels undergo, and reveal the mechanisms underlying primary soot particle inception and growth. A lattice fringe analysis shows that differences among the soot nanostructures are measurable. The elemental carbon structure in airborne particles is mixed internally and externally and does in fact reflect contributions from different anthropogenic and biomass burning sources. An improved understanding of the soot nano-heterogenity in airborne and combustion particles is likely to greatly influence PM2.5-related health and source apportionment research.