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I am an associate professor in the Department of Environmental Sciences and Engineering in the Gillings School of Global Public Health. The focus of my research is atmospheric chemistry and the formation of air pollution.

I use high performance computers and three-dimensional simulations to model the atmosphere to try to improve our understanding about how air pollution forms. This knowledge allows us to improve the tools and methods that policymakers use to make effective strategies to improve air quality, creating a healthier environment for everyone. 

I joined the faculty at UNC in 2005. I received a Ph.D. and a M.S. in chemical engineering from the University of Texas at Austin and a B.S. in chemical engineering from Missouri University of Science and Technology (formerly called the University of Missouri at Rolla). My Ph.D dissertation involved computer simulations of atmospheric chemistry processes that influence ozone formation at the regional level. The results of my research were incorporated into the plan for Houston to attain the federal one-hour ozone standard.

Between undergraduate and graduate school, I was a process engineer at ExxonMobil in Baton Rouge, Louisiana.

My wife, Natalie, and I have two children, Guillermo and Maya. I love the St. Louis Cardinals, rarely miss a World Cup soccer game and enjoy long bicycles rides in the country.


If I hadn't studied chemical engineering, I would have studied music. Besides my family and work, jazz is my passion, particularly the avant-garde. I have been a radio DJ since 1995, hosting jazz shows at various college and community stations. Right now, I host an occasional show on the UNC radio station, WXYC 89.3 F.M.