Air quality in North America's most populous city – overview of the MCMA-2003 campaign L. T. Molina1,2, C. E. Kolb3, B. de Foy1,2,4, B. K. Lamb5, W. H. Brune6, J. L. Jimenez7,8, R. Ramos-Villegas9, J. Sarmiento9, V. H. Paramo-Figueroa9, B. Cardenas10, V. Gutierrez-Avedoy10, and M. J. Molina1,11 1Department of Earth, Atmospheric and Planetary Science, Massachusetts Institute of Technology, Cambridge, MA, USA 2Molina Center for Energy and Environment, La Jolla, CA, USA 3Aerodyne Research, Inc., Billerica, MA, USA 4Saint Louis University, St. Louis, MO, USA 5Laboratory for Atmospheric Research, Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, USA 6Department of Meteorology, Pennsylvania State University, University Park, PA, USA 7Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, CO, USA 8Cooperative Institute for Research in the Environmental Sciences (CIRES), Univ. of Colorado at Boulder, Boulder, CO, USA 9Secretary of Environment, Government of the Federal District, Mexico, DF, Mexico 10National Center for Environmental Research and Training, National Institute of Ecology, Mexico, DF, Mexico 11Department of Chemistry and Biochemistry, University of California at San Diego, San Diego, CA, USA
Abstract. Exploratory field measurements in the Mexico City Metropolitan Area (MCMA)
in February 2002 set the stage for a major air quality field measurement
campaign in the spring of 2003 (MCMA-2003). Involving over 100 scientists
from more than 30 institutions in Mexico, the United States and Europe,
MCMA-2003 revealed important new insights into the meteorology, primary
pollutant emissions, ambient secondary pollutant precursor concentrations,
photochemical oxidant production and secondary aerosol particle formation in
North America's most populated and polluted megacity. A description of
meteorological and atmospheric chemistry and aerosol microphysics
measurements performed during MCMA-2003 is presented. More than 40
published or submitted MCMA-2003 research papers are reviewed and key
discoveries pertinent to understanding and improving air quality in Mexico
City and similar megacities in the developing world are summarized.
Citation: Molina, L. T., Kolb, C. E., de Foy, B., Lamb, B. K., Brune, W. H., Jimenez, J. L., Ramos-Villegas, R., Sarmiento, J., Paramo-Figueroa, V. H., Cardenas, B., Gutierrez-Avedoy, V., and Molina, M. J.: Air quality in North America's most populous city – overview of the MCMA-2003 campaign, Atmos. Chem. Phys., 7, 2447-2473, doi:10.5194/acp-7-2447-2007, 2007.