Dr. Mark Borchardt’s expertise is in the measurement, fate, transport, and health effects of human and agricultural zoonotic pathogens in the environment. He has also conducted research on nitrate contamination of groundwater. Now retired, Dr. Borchardt worked as a research microbiologist with the USDA Agricultural Research Service and as program leader for the Laboratory for Infectious Disease and the Environment, an interagency laboratory with the US Geological Survey Upper Midwest Water Science Center. He received the Dr. John L. Leal award from the American Water Works Association for his work on improving water quality and protecting public health in the United States.

Dr. Habre is a professor of environmental health and spatial sciences and director of the CLIMAte-related Exposures, Adaptation, and Health Center at the University of Southern California. She is also an MPI of NEXUS: Network for Exposomics in the U.S., which is the cross-NIH research coordinating center for advancing exposomics and precision environmental health. Her research aims to understand the effects of co-occurring environmental exposures, including air pollution mixtures and sources, climate-related exposures, adaptation vulnerabilities, and social stressors on the health of vulnerable populations across the life course. Dr. Habre received her Doctor of Science in environmental health from the Harvard TH Chan School of Public Health.

Heather Stapleton is the Ronie-Richelle Garcia-Johnson Distinguished Professor at Duke University. She is an environmental analytical chemist and exposure scientist in the Nicholas School of the Environment. Her research interests focus on identifying halogenated and organophosphate chemicals in building materials, furnishings, and consumer products, and estimating human exposure, particularly in vulnerable populations such as pregnant women, children, and firefighters. Her laboratory specializes in the analysis of wearable passive samplers, and specifically silicone wristbands, to advance exposure and environmental health research. In addition, her laboratory supports analysis of biological samples for organic contaminants to support environmental health research, with an emphasis on thyroid disease and cancer. She serves as the director of the Duke University Superfund Research Center and the director of the North Carolina Firefighter Cancer Cohort Study. 

Dr. Teerlink serves as the deputy director and deputy science advisor for the State of California's Department of Pesticide Regulation (DPR), serving the division of Pesticide Registration, Pesticide Evaluation, and Human Health Assessment branches. Before joining DPR, she worked as a chemist for the US Geological Survey. Her expertise is in pesticide contamination, with a research background focused on characterizing pesticide residues, identifying contamination sources, understanding how pesticides move into surface waters, and developing targeted strategies to reduce their environmental impacts.

Dr. Beane Freeman is a senior investigator at the National Cancer Institute (NCI) in the Division of Cancer Epidemiology and Genetics (DCEG). Her work investigates cancer risk associated with several occupational and environmental exposures. Specifically, she studies the agricultural environment, including pesticides; industrial chemical exposures such as formaldehyde; and drinking water contaminants, such as disinfection by-products. Dr. Beane Freeman received her doctorate in epidemiology from the University of Iowa in 2003 and completed postdoctoral training in the Occupational and Environmental Epidemiology Branch. She has received numerous awards recognizing her work, including two NCI Director’s Innovation awards, and the DCEG Mentoring Award. She is an elected member of the Management Group of the International Epidemiology in Occupational Health Society and the National Institutes of Health Women Scientist Advisors, representing DCEG.