Al graduated from U.C. Santa Barbara in 1968 with a BS in Zoology. He has worked in the Environmental Energy Technologies Division since 1975. In 1982, he joined the Indoor Environment Department to work on the development of passive sampling techniques for indoor pollutants. In the early 1980's, he and John Girman (now with the U.S. EPA) established a gas chromatography/mass spectrometry laboratory for the analysis of airborne organic pollutants and one of the first large-scale chamber facilities specifically designed for studies of indoor sources of volatile organic compounds (VOCs). Al is now a Staff Scientist and Principal Investigator. Since 2000, he has served as acting group leader of the PSD&C group. He conducts research on the sources and impacts of VOCs in commercial and residential buildings, on the emissions of VOCs from indoor materials and products, and on the physical and chemical processes affecting the dynamic behavior of VOCs in buildings.

Bill has been affiliated with IED since January 1978. He was originally hired as an undergraduate research assistant to contribute to the department's research efforts on indoor radon. He continued working on that topic as a graduate student research assistant (1978-1980) and staff scientist (1980-1984). He matriculated as a PhD student at Caltech in 1984, maintaining limited part-time involvement with LBL throughout his doctoral studies. After completing his PhD, he returned to a temporary full-time appointment with IED in the fall of 1988 before commencing his faculty appointment at UC Berkeley in January 1989. Since that time, he has remained involved with IED research as a faculty scientist with broad interests in the physics and chemistry of indoor air pollutants. He has been the research advisor or coadvisor of many PhD students and postdoctoral scholars who have done part or all of their work in collaboration with LBL/IED scientists.

Lara Gundel received a B.S. in Chemistry from Valparaiso University in 1967, followed by a Ph.D. in physical chemistry from U.C. Berkeley in 1975. As a staff scientist and principal investigator she leads projects that develop, validate and apply new measurement methods for accurate determination of semi-volatile and particulate organic pollutants in ambient air and combustion sources. From 1977 to 1988 she worked with the Aerosol Research Group at LBNL, characterizing airborne carbonaceous particles and studying the kinetics of their reactions with SO2 and NO2. In 1989 she joined the Indoor Environment Department to work with Joan Daisey on interactions of NO2 with indoor surface materials. As part of their work on environmental tobacco smoke, Lara and Joan invented a novel sampling technology that enables artifact-free measurements of the partitioning of semi-volatile pollutants between vapor and particle phases. Recently she has been working with EETD colleagues to miniaturize personal sampling technology for cost-effective and accurate exposure assessment.

Brett earned a B.S. in Mechanical Engineering from Temple University and both an M.S. and Ph.D. in Civil and Environmental Engineering from U.C. Berkeley. His graduate research focused on methods to build on-road motor vehicle emission inventories using remote sensing data. After graduating, Brett came to LBNL to study environmental tobacco smoke as a post-doctoral researcher in the Indoor Environment Dept. While at LBNL, Brett also has co-guided an extensive analysis of California's Smog Check program and a study of children's exposure to traffic-related air pollutants in the East Bay. Brett now works as a Scientist in the Atmospheric Sciences Dept. but continues to be actively involved with Indoor Air Quality research.

Ray has a B.S. in chemistry from Oregon State University (1964) and an M.S. (1970) and Ph.D. (1972) in actinide chemistry from U.C. Berkeley. He joined the staff in the Environmental Energy Technologies Division in 1975 in the Atmospheric Aerosol Research Group, and retired from the laboratory in 1993. In 1999 he returned on a part-time basis to assist Lara Gundel, primarily in the studies of semi-volatile organic pollutants, proving that science can be fun given the right environment.