HR: 08:00h
AN: A31E-01 INVITED    [Abstracts]
TI: Chemistry of Volatile Organic Compounds and Organic Aerosol in the Outflow from Mexico City
AU: * de Gouw, J A
EM: Joost.deGouw@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway CSD7, Boulder, CO 80305, United States
AU: * de Gouw, J A
EM: Joost.deGouw@noaa.gov
AF: CIRES, University of Colorado, Campus Box 216, Boulder, CO 80309, United States
AU: Welsh-Bon, D
EM: Daniel.WelshBon@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway CSD7, Boulder, CO 80305, United States
AU: Welsh-Bon, D
EM: Daniel.WelshBon@noaa.gov
AF: CIRES, University of Colorado, Campus Box 216, Boulder, CO 80309, United States
AU: Welsh-Bon, D
EM: Daniel.WelshBon@noaa.gov
AF: Department of Chemistry & Biochemistry, University of Colorado, Campus Box 215, Boulder, CO 80309, United States
AU: Warneke, C
EM: Carsten.Warneke@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway CSD7, Boulder, CO 80305, United States
AU: Warneke, C
EM: Carsten.Warneke@noaa.gov
AF: CIRES, University of Colorado, Campus Box 216, Boulder, CO 80309, United States
AU: Kuster, W C
EM: William.C.Kuster@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway CSD7, Boulder, CO 80305, United States
AU: Huey, L G
EM: greg.huey@eas.gatech.edu
AF: Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, United States
AU: Sullivan, A P
EM: sullivan@atmos.colostate.edu
AF: Colorado State University, 200 West Lake Street, Fort Collins, CO 80523, United States
AU: Weber, R J
EM: rweber@eas.gatech.edu
AF: Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, United States
AU: Stone, E A
EM: eastone@wisc.edu
AF: University of Wisconsin, 660 North Park Street, Madison, WI 53706, United States
AU: Schauer, J J
EM: jjschauer@wisc.edu
AF: University of Wisconsin, 660 North Park Street, Madison, WI 53706, United States
AB: The MILAGRO study in March of 2006 was aimed at studying air pollution in the Mexico City basin, and at the transport and atmospheric impact of the primary and secondary pollutants on the regional and global atmosphere. Measurements of volatile organic compounds (VOCs) and of (water-soluble) organic carbon at a sub-urban site to the north of Mexico City (T1), are used to characterize the emissions and chemical removal of VOCs and the resulting formation of secondary products. The emission ratios of most VOCs, relative to carbon monoxide (CO), are about a factor of 2 higher in Mexico City than in the U.S. On the other hand, formation of oxygenated VOCs and secondary organic aerosol is comparable between Mexico City and the U.S. The contribution of biomass burning emissions is investigated using measurements of acetonitrile, and the results are compared to a chemical mass balance approach based on measurements of molecular markers such as levoglucosan.
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting