Tracey Woodruff is a senior scientist and policy analyst in the National Center for Environmental Economics, Office of Policy, Economics, & Innovation, at the U.S. Environmental Protection Agency. Her research focuses on environmental health issues, including health effects from air pollution, children's health risks, and science policy issues. Tracey has published articles in Environmental Health Perspectives, Toxicology and Industrial Health, Environmental Research, and other journals. She has served as an epidemiological expert for the U.S. EPA in the preparation of the regulatory standards for particulate matter and ozone. Tracey has held postdoctoral fellowships at the National Academy of Sciences and the University of California, San Francisco.