HR: 1340h
AN: A33D-1569    [Abstracts]
TI: Comparison of Biomass Burning Signatures From Controlled Laboratory Fires With Burning Events Observed in Polluted Urban Environments of Mexicali and Mexico City
AU: * Knighton, W B
EM: bknighton@chemistry.montana.edu
AF: Montana State University, Department of Chemistry PO Box 173400, Bozeman, MT 59717-3400, United States
AU: Fortner, E C
EM: efortner@chemistry.montana.edu
AF: Montana State University, Department of Chemistry PO Box 173400, Bozeman, MT 59717-3400, United States
AU: Herndon, S C
EM: herndon@aerodyne.com
AF: Aerodyne Research Inc., 45 Manning Road, Billerica, MA 01821-3976, United States
AU: Wood, E B
EM: ezrawood@aerodyne.com
AF: Aerodyne Research Inc., 45 Manning Road, Billerica, MA 01821-3976, United States
AU: Jayne, J T
EM: jayne@aerodyne.com
AF: Aerodyne Research Inc., 45 Manning Road, Billerica, MA 01821-3976, United States
AU: Onasch, T B
EM: onasch@aerodyne.com
AF: Aerodyne Research Inc., 45 Manning Road, Billerica, MA 01821-3976, United States
AU: Trimborn, A
EM: trimborn@aerodyne.com
AF: Aerodyne Research Inc., 45 Manning Road, Billerica, MA 01821-3976, United States
AU: Kroll, J H
EM: kroll@aerodyne
AF: Aerodyne Research Inc., 45 Manning Road, Billerica, MA 01821-3976, United States
AU: Worsnop, D R
EM: worsnop@aerodyne.com
AF: Aerodyne Research Inc., 45 Manning Road, Billerica, MA 01821-3976, United States
AU: Kolb, C E
EM: kolb@aerodyne.com
AF: Aerodyne Research Inc., 45 Manning Road, Billerica, MA 01821-3976, United States
AB: A Proton Transfer Reaction Mass Spectrometer (PTR-MS) and an Aerosol Mass Spectrometer (AMS) were used to measure the gas phase VOCs and fine particle compositions, respectively, associated with biomass burning in a series of controlled laboratory biomass fire experiments during project FLAME (Missoula Fire Lab 2007) and three separate field campaigns, Mexico City 2003, 2006 and Mexicali 2005. For the laboratory fire experiments, a quantitative comparison of the biomass burning tracer species such as acetonitrile and hydrogen cyanide in the gas phase to particulate levoglucosan and the biomass burning organic aerosol (BBOA) fraction is presented as a function of fuel type. Using the relationships derived from the laboratory experiments, specific time intervals were identified during the field campaigns when biomass burning plumes were mixed into the polluted urban plumes and the relative contributions of different emission sources are evaluated.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting