My research is in exposure assessment: understanding how much pollution people breathe, and how to reduce those exposures. My specific areas of focus are (1) Air pollution impacts of urban form; (2) Air pollution and health impacts of transportation energy consumption, including alternative fuels (biofuels, electric vehicles) and active travel (walking, biking); (3) In situ measurement of fine particles in developing countries.
Two core themes underlying those areas are modeling and measuring spatiotemporal variability in pollution concentrations; and environmental justice: understanding who is more exposed or less exposed to air pollution, how exposures correlate with attributes such as race or income, and how changes in emissions might shift existing exposure gaps.
- Ph.D., Energy & Resources, UC Berkeley, 2005
- M.S., Energy & Resources, UC Berkeley, 2002
- B.S.E., Chemical Engineering, Princeton University, 1996
Honors & awards
- John R. Kiely Professorship, University of Washington, 2016 - present
- Charles E. Bowers Teaching Award, University of Minnesota (UMN), 2014
- C. Eugene Allen Award for Innovative International Initiatives (awarded to the Acara program), UMN, 2014
- Joan M. Daisey Outstanding Young Scientist Award, International Society of Exposure Science, 2013
- McKnight Land-Grant Professorship, UMN, 2009–2011
- Young Engineer of the Year, American Society of Civil Engineers, Minnesota Section, 2009
- One article (Ji et al., 2012) on the “most read” list from Environmental Science & Technology
- One article (Marshall and Toffel, 2005) on the “most downloaded” list from Environmental Science & Technology
- Two articles (Marshall, McKone, et al., 2005; Marshall, Nethery, et al., 2008) on the “most downloaded” list from Atmospheric Environment
- Outstanding Graduate Student Instructor Award, U.C. Berkeley, 2005. Award states: “Each year, fewer than 10% of GSIs earn this distinguished award”
Pollution disparities for people of color
CEE researchers uncover how people of color are more likely to be exposed to six major air pollutants, regardless of income level, across the continental United States.
Building purifiers that remove virus particles
Air pollution expert Professor Julian Marshall leads his class in building low-cost air purifiers that can remove common pollutants from the air, plus virus particles.
CEE department awards
At the end of spring quarter, several CEE faculty and students were honored with department awards.