Thomas E. McKone is a Senior Staff Scientist and Deputy Department Head at the Lawrence Berkeley National Laboratory and an Adjunct Professor and researcher with the School of Public Health at the University of California, Berkeley. His research interests include the development, use, and evaluation of models and data for human-health and ecological risk assessments; chemical transport and transformation in the environment; and the health and environmental impacts of energy, industrial, and agricultural systems. He is responsible for the development of CalTOX, a model first used by the California Environmental Protection Agency to conduct multimedia risk assessment for hazardous waste and air pollutants. More recently, CalTOX has been used for assessing the behavior of persistent pollutants and for life-cycle impact assessments. In addition to his research and teaching activities with the University of California, Dr. McKone is active in other research, regulatory, and professional organizations. He has been a member of several National Academy of Sciences Committees and served six years on the EPA Science Advisory Board. He is past-president of the International Society of Exposure Analysis (ISEA) and has been on consultant committees for the Organization for Economic Cooperation and Development (OECD), the World Health Organization, the International Atomic Energy Agency, and the Food and Agriculture Organization. He was a member of the Expert Working Group, California Environmental Health Tracking Planning Project and is also currently a member of the Advisory Council of the American Center for Cycle Assessment and a member International Life-Cycle Initiative Panel, a joint effort of the United Nations Environment Program (UNEP) and the Society for Environmental Toxicology and Chemistry (SETAC). The ISEA awarded him the 2003 Constance L. Mehlman Award for "contributions in exposure analysis research" that have provided "new approaches for the reduction or prevention of exposures" and have "helped shape national and state policies." Dr. McKone received his M.S. and Ph.D. in engineering from the University of California at Los Angeles.