She currently oversees a research group at the Center for Energy and Environmental Resources at UT that conducts air quality studies to assist policy decisions in the State of Texas and to improve the fundamental understanding of chemical and physical processes in the atmosphere. Her research interests include emissions inventory development, in particular the characterization of emissions from mobile sources, atmospheric chemistry, photochemical modeling, emissions trading, applications of satellite remote sensing date for air quality research, and urban and regional air quality issues, notably the impacts of urban development patterns on air quality and population exposure to pollution and intra-and inter- state transport of air pollutants.