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FORMATION MECHANISMS FOR SECONDARY ORGANIC AEROSOL IN AMBIENT AIR
Citation:
KLEINDIENST, T. E., E. O. EDNEY, M. LEWANDOWSKI, J. H. OFFENBERG, MOHAMMAD JAOUI, AND J. SEINFELD. FORMATION MECHANISMS FOR SECONDARY ORGANIC AEROSOL IN AMBIENT AIR. Presented at EPA Science Forum 2005, Washington, DC, May 16 - 18, 2005.
Impact/Purpose:
1. Conduct laboratory studies with scientists from Caltech, the University of Antwerp, and the NOAA Aeronomy Laboratory to improve treatments of SOA Chemistry and N2O5 chemistry in CMAQ.
2. Analyze ambient PM2.5 samples in Research Triangle Park, NC, Detroit, MI and Pasadena, CA and when available compare field data with CMAQ predictions obtained from AMD.
3. In 2005 recommend improvements to AMD for the treatment of SOA chemistry in CMAQ.
4. By the end of FY06, deliver an improved SOA chemistry model to AMD who will incorporate the model into CMAQ.
5. By the end of 2007, deliver an improved N2O5 chemistry model to AMD who will incorporate the model into CMAQ.
Description:
An laboratory and field research program is underway at the NERL to characterize secondary organic carbon in PM2.5 which is formed through chemical reactions in the atmosphere. Information from this study will provide critical data needed to improve the treatment of SOA formation in the Community Multiscale Air Quality (CMAQ) model.