Journal article
Correlation of secondary organic aerosol with odd oxygen in Mexico City
Geophysical research letters, v 35(15), pp L15804-n/a
05 Aug 2008
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Photochemically processed urban emissions were characterized at a mountain top location, free from local sources, within the Mexico City Metropolitan Area. Analysis of the Mexico City emission plume demonstrates a strong correlation between secondary organic aerosol and odd oxygen (O-3 + NO2). The measured oxygenated-organic aerosol correlates with odd oxygen measurements with an apparent slope of (104-180) mu g m(-3) ppmv(-1) (STP) and r(2) > 0.9. The dependence of the observed proportionality on the gas-phase hydrocarbon profile is discussed. The observationally-based correlation between oxygenated organic aerosol mass and odd oxygen may provide insight into poorly understood secondary organic aerosol production mechanisms by leveraging knowledge of gas-phase ozone production chemistry. These results suggest that global and regional models may be able to use the observed proportionality to estimate SOA as a co-product of modeled O-3 production until more complete models of SOA formation become available.
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Details
- Title
- Correlation of secondary organic aerosol with odd oxygen in Mexico City
- Creators
- Scott C. Herndon - Aerodyne ResearchTimothy B. Onasch - Aerodyne ResearchEzra C. Wood - Aerodyne ResearchJesse H. Kroll - Aerodyne ResearchManjula R. Canagaratna - Aerodyne ResearchJohn T. Jayne - Aerodyne ResearchMiguel A. Zavala - Massachusetts Institute of TechnologyW. Berk Knighton - Montana State UniversityClaudio Mazzoleni - Los Alamos National LaboratoryManvendra K. Dubey - Los Alamos National LaboratoryIngrid M. Ulbrich - University of Colorado BoulderJose L. Jimenez - University of Colorado BoulderRobert Seila - Research Triangle Park FoundationJoost A. de Gouw - NOAA Earth System Research LaboratoryBenjamin de Foy - Saint Louis UniversityJerome Fast - Pacific Northwest National LaboratoryLuisa T. Molina - Massachusetts Institute of TechnologyCharles E. Kolb - Aerodyne ResearchDouglas R. Worsnop - Aerodyne ResearchPacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Publication Details
- Geophysical research letters, v 35(15), pp L15804-n/a
- Publisher
- Amer Geophysical Union
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000258338200001
- Scopus ID
- 2-s2.0-49749083722
- Other Identifier
- 991020902863204721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Geosciences, Multidisciplinary