Biographic Information on the Committee on Sources of Lead Contamination at or near Superfund Sites
Edward J. Bouwer (Chair) is Abel Wolman Professor of Environmental Engineering in the newly formed Department of Environmental Health and Engineering at Johns Hopkins University. He is also director of the Center for Contaminant Transport, Fate and Remediation. Dr. Bouwer has extensive experience with drinking water and wastewater treatment processes, microbial process engineering, and contaminant transport and fate. His research interests encompass factors that influence biotransformation of contaminants; bioremediation for control of contaminated soils and groundwater; biofilm kinetics; biologic process design in wastewater, industrial, and drinking-water treatment; transport and fate of micro-organisms in porous media; behavior of metals in contaminated sediments; and defining and managing environmental risks. He serves as the editor-in-chief for Bio-degradation and on the editorial boards for the Journal of Contaminant Hydrology and Environmental Engineering Science. Dr. Bouwer received his BS in civil engineering with a minor in nuclear engineering from Arizona State University, and an MS and a PhD in environmental engineering and science from Stanford University.
Mark D. Barton is a professor of geosciences at the University of Arizona. He serves as associate director of the Lowell Institute for Mineral Resources. He has been instrumental in driving innovative research applied to ore deposits in North America and South America for nearly 30 years. Collaborative research in which he has a leading role includes porphyry copper life cycles in the American Southwest and its broader crustal context, the regional geologic framework and origin of Carlin-type gold deposits, the characteristics and origin of iron oxide mineralization, granite petrogenesis and lithophile element mineralization in the Great Basin, and metallogenic synthesis in Mexico and adjoining regions. He is a winner of the Society of Economic Geology Lindgren Award and of the Mineralogical Society of America award and the author of numerous papers, including landmark reviews on ore deposits and metallogeny. He served on the National Research Council Committee on Basic Research Opportunities in the Earth Sciences. Dr. Barton earned his PhD in geology from the University of Chicago.
Eric A. Betterton is a University Distinguished Professor and head of the Department of Hydrology and Atmospheric Sciences at the University of Arizona. He also has appointments in the Department of Chemical and Environmental Engineering and the College of Public Health. His research focuses on air pollution, especially atmospheric aerosols and dust associated with mining operations; solar energy; rain, snow, and ice chemistry; remediation of polluted groundwater; and environmental fate of various compounds. He received a PhD in chemical kinetics from The University of Witwatersrand, South Africa.
Joel D. Blum holds the JD MacArthur Professorship and is the GJ Keeler Distinguished University Professor in the Department of Earth and Environmental Sciences of the University of Michigan. He obtained his BA from Case Western Reserve University, his MS from the University of Alaska, and his PhD from the California Institute of Technology. He was a professor of earth sciences at Dartmouth College for 9 years before moving to the University of Michigan in 1999. Dr. Blum’s research focuses on the sources, fate and cycling of metals in the environment. Most recently, he has focused on understanding the biogeochemistry of mercury in aquatic, terrestrial, and atmospheric systems, in many cases using mercury stable isotopes. Dr. Blum has published over 200 research papers. He has served on numerous advisory panels for the National Science Foundation, the National Institutes of Health, the Environmental Law and Policy Center, and the Department of Energy. He is a past editor of Chemical Geology and current editor of ACS Earth and Space Chemistry. He is a fellow of the Geochemical Society, the
American Geophysical Union, the Geological Society of America, and the American Association for the Advancement of Science. In 2013, he won the Patterson Medal of the Geochemical Society for his work on metals in the environment.
Susan L. Brantley is Distinguished Professor of Geosciences and director of the Earth and Environmental Systems Institute at Pennsylvania State University. Dr. Brantley investigates chemical and physical processes associated with the circulation of aqueous fluids in shallow hydrogeologic settings. Her investigations incorporate field and laboratory work and theoretical modeling of observations. Particular interests are the measurement and prediction of the rates of natural processes, including chemical weathering and natural degassing. Her recent work has focused on measuring and modeling how rock turns into regolith and on water-quality issues in areas with hydraulic fracturing. Dr. Brantley has served on numerous National Research Council committees and is a member of the National Academy of Sciences. She is a recipient of the Wollaston Medal of the Geological Society, the Arthur L. Day Medal of the Geological Society of America, and the Presidential Award of the Soil Science Society of America. She received her PhD in geologic and geophysical sciences from Princeton University.
Judith C. Chow holds the Nazir and Mary Ansari Chair in Science and Entrepreneurialism and is a research professor in the Division of Atmospheric Sciences of the Desert Research Institute of the Nevada System of Higher Education in Reno, Nevada. For more than 39 years, she has conducted air-quality studies and performed data analysis to improve understanding of effects of air quality on human health, visibility, historical treasures, ecosystems, and climate. She has been principal investigator or a major collaborator in more than 50 large air-quality studies and many smaller ones in the United States and other countries. Dr. Chow is a charter member of EPA’s Clean Air Scientific Advisory Committee (CASAC) and a member of CASAC’s Particulate Matter Review Panel (2015–2018). She is the principal author or co-author of more than 400 peer-reviewed journal articles and book. She was chair of the Publications Committee for the Journal of the Air & Waste Management Association and serves on editorial boards or as thematic editor for several international journals, including the Air Quality, Atmosphere, & Health, Aerosol and Air Quality Research, Atmospheric Pollution Research, and Particuology. Dr. Chow has received the California Air Resources Board’s 2011 Haagen-Smit Clean Air Award for her contributions to air-quality science and technology, the Air & Waste Management Association’s 2016 Arthur C. Stern Distinguished Paper Award and 2002 Frank A. Chambers Excellence in Air Pollution Control Award, and the 2001 Nevada System of Higher Education’s Nevada Regents’ Researcher Award. Dr. Chow earned her ScD in environmental science and physiology from Harvard University.
Scott E. Fendorf is the Huffington Family Professor in Earth Sciences at Stanford University and a senior fellow at the Stanford Woods Institute for the Environment. Dr. Fendorf is interested in the chemical and biologic processes that govern the fate and transport of contaminants and nutrients in soils, sediments, and surface waters. His research group examines the chemical environments that develop as a result of biotic and abiotic processes and strives to account for the physical complexity in natural settings. Dr. Fendorf served on the National Research Council Committee on Bioavailability of Contaminants in Soils and Sediments. He received his PhD in soil and environmental chemistry from the University of Delaware.
Robert E. Hazen is a research scientist at the New Jersey Department of Environmental Protection in the Division of Science Research and Environmental Health. His research activities have focused on human health risk assessment and natural-resource management with the goal of assisting with department procedures and regulations. He has served on numerous national technical committees, including the US Environmental Protection Agency Science Advisory Board and the National Research Council Committee on Remedial Action Priorities for Hazardous Waste Sites. He received his PhD in biology and environmental health from New York University.
Chris E. Johnson is a professor in the Department of Civil and Environmental Engineering at Syracuse University. Dr. Johnson’s research focuses on the chemistry of natural organic matter, which plays an important role in soil fertility, trace-metal transport, and the acid–base status of soils and natural waters. He is also involved in the interdisciplinary study of biogeochemical cycles at the Hubbard Brook Experimental Forest in the United States. He has research interests in the fate of trace metals (lead, zinc, copper, and nickel) in forest soils and landscapes; the effects of clear-cut logging on soils and drainage waters; and the changing acid–base chemistry of soils historically affected by acid rain. He served on the US Environmental Protection Agency’s Clean Air Scientific Advisory Committee Lead Review Panel in 2011-2013, which established the National Ambient Air Quality Standard for lead. He has been an associate editor for the Soil Science Society of America Journal and the Journal of Soils and Sediments. Dr. Johnson has a BSE in civil and urban engineering, an MA in statistics, and a PhD in geology from the University of Pennsylvania.
William I. Manton is a professor of geology at the University of Texas at Dallas. His early work focused on the contribution of lead from gasoline to lead in blood. He continued working in the fields of toxicology and environmental medicine using stable-isotope dilution to measure concentrations of zinc in the brain and spinal cord and lead in blood serum and cerebrospinal fluid. He has used variations in lead-isotope ratios to determine how children acquire lead and exploited the long residence of lead in bone to study conditions, such as pregnancy, under which the skeleton might be resorbed. He has also been involved in studies in which animals have been dosed with stable lead isotopes, including investigations of lead poisoning from retained bullets and the mobilization of lead from the skeleton during pregnancy and after ovariectomy to stimulate menopause. He has also published on lead in the US diet and its unexpectedly high concentrations in cocoa and chocolate. He received his PhD in geochronology from the University of Witwatersrand, South Africa.
Jerry R. Miller is the Whitmire Professor of Environmental Science in the Department of Geosciences and Natural Resources at Western Carolina University. His research interests include assessment of the transport and fate of heavy metals in rivers and lakes, sediment geochemical fingerprinting with multivariate and isotopic methods, documentation of the effects of natural and anthropogenic disturbances on sediment yields and river processes, and restoration of riparian ecosystems. He received his PhD in geology from Southern Illinois University, Carbondale.
Peggy A. O’Day is professor of life and environmental sciences at the University of California, Merced. Dr. O’Day studies the chemistry, reaction, and transport of inorganic contaminants and species, primarily metal and metalloid elements, in surface and subsurface systems. She specializes in the use of spectroscopic and microscopic methods, especially synchrotron x-ray techniques, to determine element speciation and molecular-scale mechanisms of biogeochemical reactions in natural systems and laboratory analogues. She develops and applies thermodynamic, kinetic, and reactive transport models for synthesis and quantitative description of biogeochemical cycling, reactivity, transport, and bioavailability. She received a PhD in applied earth sciences from Stanford University.
John Toll is a partner at Windward Environmental LLC. He is recognized for his work in ecologic modeling, risk assessment, uncertainty analysis, and environmental decision analysis. He works primarily on complex contaminated sediment sites and leads teams that conduct remedial investigations and feasibility studies, ecologic risk assessments, and bioaccumulation modeling. He is the author or a co-author of numerous scientific papers on ecologic modeling and risk assessment and environmental decision analysis. Dr. Toll is a senior editor of the journal Integrated Environmental Assessment and Management and is a member of the board of directors of the Society of Environmental Toxicology and Chemistry (SETAC) North America. He earned his BS in chemical engineering from the University of Iowa and his PhD in engineering and public policy from Carnegie Mellon University.
Warren White is a researcher at the Crocker Nuclear Laboratory of the University of California, Davis. His research focuses on airborne particles and visibility impairment. He served on the review panel for the Air Quality Criteria for Particulate Matter Document and was a member of the US Environmental Protection Agency Clean Air Science Advisory Committee and its particulate-matter monitoring subcommittee. He has served on several National Research Council committees. He received his PhD in mathematics from the University of Wisconsin.