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Collett Research Group

Atmospheric Chemistry / Air Quality Program
Department of Atmospheric Science
Colorado State University
Fort Collins, Colorado USA






Research Projects

How do clouds and fogs process atmospheric pollutants? What are the sources of reactive nitrogen currently impacting high elevation ecosystems in our National Parks? How do emissions from wild and precribed fires contribute to regional haze? What are the impacts of air emissions from increasing development of U.S. oil and gas resources? How can we develop better approaches to real-time characterization of atmospheric aerosols? These are some of the questions currently being addressed in our research group.  

Our group is very active in field studies of aerosol chemistry, cloud and fog chemistry, transport and deposition of reactive nitrogen, emissions from oil and gas development, and characterizing impacts of aerosol particles from different sources, especially from biomass burning, on the formation of regional haze. We also work to design and test new instruments for characterizing the chemical composition of aerosols, trace gases, and clouds/fogs.  

A brief summary of ongoing projects is available from the link below. Past and present sponsors of our research include the National Science Foundation, the U.S. Environmental Protection Agency, the National Park Service, the Joint Fire Science Program, the National Institutes of Health, the Department of Energy, the California Air Resources Board, the Colorado Department of Public Health and Environment, Garfield County (CO),the U.S. Forest Service, NASA, USDA, the Land and Water Fund of the Rockies, the Lake Michigan Air Director's Consortium, the Office of Naval Research, Shell Exploration and Production Company, Encana Oil and Gas Inc., WPX Energy, and Bill Barrett, Corp.

The second link below also depicts locations of some of our past field experiments. Recent field experiments have been conducted in Colorado, Wyoming, Idaho, California, Chile, China, Germany, and Italy. We regularly collaborate with groups from Asia, Europe and South America.



















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