Dr. Tager is Professor in the Division of Epidemiology at the School of Public Health at the University of California, Berkeley and is a co-investigator of the BCEPHT. He is an environmental epidemiologist with a long interest in the effects of environmental factors on children's respiratory health. He is the principal investigator of both the Fresno Asthmatic Children's Environment Study and the CDC-funded "Oakland Kicks Asthma" inner city asthma intervention study that provide important resources and relevant information for the BCEPHT asthma surveillance and environment component. He is also a co-investigator of the Center for the Health Analysis of Mothers and Children of Salinas project, which is designed to study the neurodevelopmental and respiratory effects of early-life exposure to pesticides and is funded jointly by the U.S. Environmental Protection Agency and the National Institute for Environmental Health Sciences. He has been a member of several National Academy of Sciences Committees and currently serves as a member of the Health Research Committee of the Health Effects Institute.