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Major Funding: DOE EPA NASA NSF Send comments to nmd@andrew.cmu.edu Last updated: 8 May 2007 by nmd |
Aerosol CharacterizationAtmospheric aerosols are a highly complicated, heterogenious mixture of objects whose size distribution and composition remains obscure. Both attributes are off great importance. For example, the US EPA has developed regulations aimed at reducing the levels of very fine particles of diameters less than 2.5 microns (PM2.5), becuase it is believed that these particles may be respired into the deep lung, with adverse health consequences. In order to be able to understand the origin and fate of these particulates, we must understand the distribution and evolution of size and composition; consequtently, the development and deployment of instrumentation able to resolve these properties, in some cases for individual particles, is a major focus for Prof. Pandis, Prof. Davidson, and Prof. Robinson. |