Environmental Sciences

Environmental Sciences Experts

Rebecca Sheesley

Associate Professor
Department of Environmental Science
Baylor University
United States of America


Rebecca Sheesley is currently working as an Associate Professor of Environmental Science at Baylor University. She has completed her Postdoctoral Fellowship, Stockholm University, Bolin Centre for Climate Research, 2007-2009 & B.S., Wheaton College, 1998. Postdoctoral Fellowship, University of Wisconsin-Madison, 2004-2007 & Ph.D., University of Wisconsin-Madison, 2004. Dr. Sheesley is interested in understanding local to global impacts of atmospheric particulate matter. Her work on air quality spans several continents, with studies in the Upper Midwest, Southern California, Scandinavia, South Asia and now the North American Arctic. Carbonaceous aerosols in the atmosphere are a continually changing complex mixture that interacts with the biosphere, impacts climate change and can have negative effects on human health. In order to understand the impacts of carbonaceous aerosols, the chemical composition needs to be investigated; to effectively mitigate the impact, sources of the aerosols need to be defined. This thesis has been the basis of Dr. Sheesley's previous carbonaceous aerosol studies. She has focused her efforts on refining methods for the analysis of organic tracers, the application of source apportionment models and have begun to incorporate carbon isotope methodologies. Dr. Sheesley is also interested in using these methods to assess the global impacts of primary and secondary carbonaceous aerosols on climate change and human health. The integration of organic tracer and isotope analysis into larger biosphere and human health impact research projects provides distinct advantages for statistical analysis and a source-oriented perspective.

Research Interest

local to global impacts of atmospheric particulate matter


  • Sheesley, R.J., Andersson, A., Gustafsson, O. Source characterization of organic aerosols using Monte Carlo source apportionment of PAHs at two South Asian receptor sites. Atmospheric Environment, 2011 45(23): 3874-3881.

  • Sheesley, R. J., E. Kirillova, A. Andersson, M. Krus’, P. S. Praveen, K. Budhavant, P. D. Safai, P. S. P. Rao and O. Gustafsson . "Year-round radiocarbon-based source apportionment of carbonaceous aerosols at two background sites in South Asia." Journal of Geophysical Research-Atmospheres, 2012.

  • Napelenok, S., Simon, H., Bhave, P., Pye, H., Pouliot, G., Sheesley, R.J., Schauer, J.J. (2014) “Diagnostic Air Quality Model Evaluation of Source Specific Primary and Secondary Fine Particulate Carbon.” Environmental Science & Technology, 48 (1) 464–473.

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