of air pollutants. He has recently been called upon several times by the U.S. Congress during Clean Air Act hearings to testify regarding the known human health effects of air pollution. His past research has included field studies of the effects of ozone and acid aerosols on the incidence of asthma attacks in children, as well as time-series studies of the effects of air pollution on the incidence of daily hospital admissions and human mortality. Dr. Thurston has served as an associate editor of the Journal of Exposure Analysis and Environmental Epidemiology since 1993. Prior to joining the NYU faculty in 1984, he was a research fellow at Harvard University's Kennedy School of Government. Dr. Thurston received a B.S. in engineering from Brown University in 1974, and his doctorate from the Harvard School of Public Health in 1983.