7th Conf. on Atmospheric Chemistry


Atmospheric oxidation of organic particulate matter

Mario J. Molina, MIT, Cambridge, MA; and L. Molina

We have conducted an experimental study of the OH-initiated oxidation of solid organic surfaces that serve as proxies of atmospheric aerosols. Our results indicate that the oxidation of alkane surfaces occurs very efficiently, and thus we conclude that volatilization is at least as efficient as wet deposition as a removal process for alkane particulates min the atmosphere. Solid aromatic compounds are also oxidized by the OH radical, but volatilization occurs at a slower rate.

Session 2, Aerosol and Precipitation Interactions
Monday, 10 January 2005, 10:45 AM-12:00 PM

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