HR: 08:50h
AN: A31E-04    [Abstracts]
TI: Photochemically produced secondary organic aerosol and ozone in the Houston Ship Channel during TexAQS-GoMACCS 2006
AU: * Herndon, S
EM: herndon@aerodyne.com
AF: Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821, United States
AU: Onasch, T
EM: onasch@aerodyne.com
AF: Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821, United States
AU: Allan, J
EM: james.allan@manchester.ac.uk
AF: School of Earth, Atmospheric and Environmental Science, The University of Manchester, Sackville Street Building PO Box 88, Manchester, UK M60 1QD, United Kingdom
AU: Wood, E
EM: ezrawood@aerodyne.com
AF: Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821, United States
AU: Zahniser, M
EM: mz@aerodyne.com
AF: Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821, United States
AU: Canagaratna, M
EM: mrcana@aerodyne.com
AF: Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821, United States
AU: Lerner, B
EM: Brian.Lerner@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Welshbon, D
EM: daniel.welshbon@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Gillman, J
EM: Jessica.Gilman@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Sommariva, R
EM: Roberto.Sommariva@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Roberts, J
EM: Jim.Roberts@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Aikin, K
EM: Kenneth.C.Aikin@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Brewer, A
EM: alan.brewer@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Tucker, S
EM: Sara.Tucker@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Bates, T
EM: Tim.Bates@noaa.gov
AF: NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115, United States
AU: Quinn, P
EM: Patricia.Quinn@noaa.gov
AF: NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115, United States
AU: Kuster, B
EM: Bill.Kuster@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Williams, E
EM: Eric.Williams@noaa.gov
AF: NOAA Earth Systems Research Laboratory, 325 Broadway, Boulder, CO 80305, United States
AU: Kroll, J
EM: kroll@aerodyne.com
AF: Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821, United States
AB: The organic particulate matter measured using the aerosol mass spectrometer has been deconvolved into multiple organic components using positive matrix factorization techniques including hydrocarbon-like organic aerosol (HOA) and oxygenated organic aerosol (OOA). The correlation between OOA and Ox (Ox = NO2 + O3) will be explored. The ratio of SOA production to ozone production should depend on the VOC composition since they are both photochemical processes. VOC emissions in the Houston Ship Channel and Galveston Bay area are diverse: urban, marine diesel, petrochemical, industrial. This analysis will challenge the understanding of SOA production in the context of urban emissions. Organic aerosol can be further oxidized in the atmosphere. One product of that oxidation which may represent a particle to gas process is formic acid. The processes contributing to gas phase production will be evaluated and upper limits for the potential heterogenous production will be presented.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0317 Chemical kinetic and photochemical properties
DE: 0325 Evolution of the atmosphere (1610, 8125)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting