Overview
My general research focus is on the influence of air pollution on both climate and human health. My specific interest is particulate matter (PM), and I have done a wide range of studies on the emission, formation, deposition and impacts of PM. I am particularly interested in how PM impacts climate by modifying the radiation balance of the atmosphere and I have done studies in both pristine regions of the world (Greenland and the Himalaya), as well as hazy regions (the Southeastern US, China, and India). More recently I have been studying the influence of PM on human health with emphasis on determining the relative contributions of sources (such as biomass burning and vehicular emissions) to acute health impacts. I am also involved in developing and deploying the next generation of air quality sensors to inform citizens on the quality of the air they are breathing so that they can make informed decisions to improve their air. My vision involves combining a multidisciplinary, multicultural approach to research and education that brings together researchers from around the world to collectively work together to make the air cleaner.
Current Appointments & Affiliations
Sternberg Family Professor of Civil & Environmental Engineering
·
2021 - Present
Civil and Environmental Engineering,
Pratt School of Engineering
Professor in the Department of Civil and Environmental Engineering
·
2016 - Present
Civil and Environmental Engineering,
Pratt School of Engineering
Professor of Civil and Environmental Engineering at Duke Kunshan University
·
2022 - Present
DKU Faculty
Affiliate, Duke Global Health Institute
·
2016 - Present
Duke Global Health Institute,
University Institutes and Centers
Member of the Duke Cancer Institute
·
2018 - Present
Duke Cancer Institute,
Institutes and Centers
Recent Publications
Comparison of PM2.5 trends and source factors in urban and rural locations in Bangladesh
Journal Article Atmospheric Pollution Research · February 1, 2026 Air pollution remains a critical environmental and public health concern, particularly in developing countries like Bangladesh. Although urban air pollution has received significant attention, rural areas also experience high PM2.5 concentration ... Full text CiteHow do workers experience online stress management interventions? A review of the findings from qualitative investigations
Journal Article Journal of Workplace Behavioral Health · January 1, 2026 In response to the significant societal challenge posed by stress in the workplace, a range of online work-stress management interventions have been developed, with increasing evidence for their efficacy across a range of psychosocial outcomes. This review ... Full text CiteInvestigation of the cross-border movement of PM2.5 in the Terai belt of Nepal using a low-cost sensor network
Journal Article Atmospheric Pollution Research · January 1, 2026 Transboundary air pollution is a critical environmental and public health issue across South Asia. Nepal experiences high exposure due to its geographic location near major emission regions. A network of calibrated low-cost PM2.5 sensors across ... Full text CiteRecent Grants
Duke University Program in Environmental Health
Inst. Training Prgm or CMEMentor · Awarded by National Institute of Environmental Health Sciences · 2019 - 2029Global Air Pollution and Health
ResearchPrincipal Investigator · Awarded by Underwriters Laboratories Inc. · 2021 - 2027Mongolian Center for Environmental & Occupational Health - U.S. Subaward
Inst. Training Prgm or CMECo Investigator · Awarded by University of Texas Medical Branch · 2022 - 2027View All Grants
Education
Carnegie Mellon University ·
1995
Ph.D.
University of Minnesota, Twin Cities ·
1991
M.S.
University of Minnesota, Twin Cities ·
1987
B.S.