Overview
The overarching theme of my research is to develop a fundamental and quantitative understanding of the factors that determine the chemical composition of the atmosphere. I am particularly interested in delineating natural and anthropogenic impacts on the chemical composition of the atmosphere, and in exploring the potential for these impacts to affect natural ecosystems. My research involves the use of numerical models in conjunction with remote and insitu measurements of atmospheric composition.
Current Appointments & Affiliations
Professor in Environmental Chemistry
·
2024 - Present
Environmental Natural Science,
Nicholas School of the Environment
Professor in the Department of Civil and Environmental Engineering
·
2024 - Present
Civil and Environmental Engineering,
Pratt School of Engineering
Recent Publications
Impact of Wildfire Smoke on Acute Illness.
Journal Article Anesthesiology · October 1, 2024 Full text Open Access Link to item CiteAnalysis of overdispersion in airborne transmission of COVID-19
Journal Article Physics of Fluids · May 1, 2022 Superspreading events and overdispersion are hallmarks of the COVID-19 pandemic. However, the specific roles and influence of established viral and physical factors related to the mechanisms of transmission, on overdispersion, remain unresolved. We, theref ... Full text CiteHeterogeneous Nitrate Production Mechanisms in Intense Haze Events in the North China Plain
Journal Article Journal of Geophysical Research Atmospheres · May 16, 2021 Studies of wintertime air quality in the North China Plain (NCP) show that particulate-nitrate pollution persists despite rapid reduction in NOx emissions. This intriguing NOx-nitrate relationship may originate from non-linear nitrate ... Full text CiteRecent Grants
Biomass burning in the NASA GISS ModelE2: uncertainty and interactions between emissions, transport and chemistry
ResearchPrincipal Investigator · Awarded by National Aeronautics and Space Administration · 2017 - 2022A Modeling and Analysis Study to Quantify the Impact of Biomass Burning on Tropospheric Chemistry Using Remote Sensing Measurement
ResearchPrincipal Investigator · Awarded by National Aeronautics and Space Administration · 2008 - 2011Fires and Tropospheric Chemistry: Analysis Using Remote Sensing Measurements
ResearchPrincipal Investigator · Awarded by National Aeronautics and Space Administration · 2008 - 2011View All Grants
Education, Training & Certifications
University of Kentucky ·
1988
Ph.D.
University of Kentucky ·
1984
M.S.
University of Bombay, St. Xavier College (India) ·
1982
B.S.