Dr. Zemba has performed original research, published, and consulted in the areas of air pollution phenomenology, fate and transport modeling, and risk assessment. He has investigated such topics as acid rain, dense gas plume dispersion, indoor air dispersion modeling, ocean disposal of carbon dioxide, evaluation of methods to estimate exposure point concentrations, and vapor transport of contaminants in soils. Dr. Zemba currently specializes in performing qualitative and quantitative assessments of health and environmental risks, with emphasis on modeling of pollutant fate and transport. His recent work includes the design and implementation of multi-pathway exposure assessments for air pollution sources and the assessment of contaminated waste disposal sites. Dr. Zemba has taught courses on air quality management and practical applications of air dispersion modeling.

Dr. Zemba holds a B.S. from Carnegie-Mellon University, and an M.S. (1985) and Ph.D. (1989) from the Massachusetts Institute of Technology, all in the field of Mechanical Engineering.