Dr. Levy's research centers on developing models to quantitatively assess the environmental and health impacts of air pollution from local to national scales, with a focus on urban environments. This involves the evaluation of exposure using a combination of atmospheric dispersion modeling, predictive statistical models, and field measurements. Health risks are quantified through epidemiological investigations, interpretation of past epidemiological studies, and supporting physiological and toxicological evidence.

His current research efforts include:

• Using geographic information systems (GIS) to determine spatial heterogeneity in levels of air pollution both outdoors and indoors in low-income urban neighborhoods, using statistical techniques for source apportionment. This will contribute to a birth cohort study of asthma development for children in the Boston area, which includes social, environmental, and genetic risk factors.
• Developing quantitative measures of environmental equity suitable for air pollution risk assessment and benefit-cost analysis, including case studies evaluating power plant and diesel bus control strategies
• Modeling exposures and health risks associated with usage of pesticides in urban low-income settings, as an extension to a large-scale research initiative in Boston public housing developments.
• Evaluating the exposure and health risk implications of aviation-related emissions, with a case study application addressing T.F. Green Airport in Rhode Island.
• Evaluating spatial patterns of air pollution in New York City to help determine the potential exposure and public health benefits of congestion pricing, using a combination of modeling and monitoring in both urban street canyons and neighborhoods near key bridges.
• Determining the relationship between traffic and levels of air pollution in the Mission Hill neighborhood of Boston, in a community-university partnership with the Mission Hill Health Movement involving area high school students in neighborhood-scale monitoring. 

Sc.D., 1999, Harvard School of Public Health (Environmental Science and Risk Management)