Major Funding:
DOE
EPA
NASA
NSF
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Last updated: 8 May 2007 by nmd
Downtown Pittsburgh as seen from the Pittsburgh Air Quality Study sampling trailer near the Carnegie Mellon University campus. The upper panel shows a day with very low fine particle (PM2.5) mass, while the lower panel shows a day with high PM2.5 mass. The insets show time and size resolved particle number counts, revealing that the low-mass day in the upper panel also shows clear evidence of new particle formation (nucleation) -- these nucleation events occurred on more than 1/4 of the days during the 1 year field campaign.
Members of CAPS are recognized internationally as leaders in the study of air quality and atmospheric chemistry. Our unifying theme is the behavior of particulate matter in the atmosphere, including emissions, formation, transformation and deposition of particles as well as their climatological and health effects. We currently consist of five interwoven research groups directed by faculty members associated with five academic departments (Chemistry, Chemical Engineering, Civil and Environmental Engineering, Engineering and Public Policy, Mechanical Engineering) and two colleges (the Carnegie Institute of Technology and the Mellon College of Science).