October 16, 2025
Gradient is pleased to announce the latest addition to our team of toxicologists, Dr. Rachel Rogers. Dr. Rogers is an experienced environmental health scientist and manager, providing scientific and technical expertise on a range of issues, including chemical safety, exposure and risk assessment, toxicology, epidemiology, and risk management of per- and polyfluoroalkyl substances (PFAS) and other environmental chemicals. Dr. Rogers served most recently as the subject matter expert on PFAS for the Agency for Toxic Substances and Disease Registry/National Center for Environmental Health (ATSDR/NCEH), and was a senior advisor for chemical safety for the Council on Environmental Quality (CEQ) within the Executive Office of the President under the Biden administration. Dr. Rogers has an M.A. in environmental studies from Brown University, and a Ph.D. in toxicology from the University of Georgia.
Sample publications by Rachel Rogers:
“National Emerging Contaminants Research Initiative Implementation Plan.” 2024. A Report by the Joint Subcommittee on Environment, Innovation, and Public Health Contaminants of Emerging Concern Strategy Team of the National Science and Technology Council. Strategy Team Member.
Lynch, M; Lay, C; Sokolinski, S; Antezana, A; Ghio, C; Chiu, W; Rogers, R. 2023. “Community-facing toxicokinetic models to estimate PFAS serum levels based on life history and drinking water exposures.” Environ. Int.
“Per- and Polyfluoroalkyl Substances Report to Congress.” 2023. A Report by the Joint Subcommittee on Environment, Innovation, and Public Health, PFAS Strategy Team of the National Science and Technology Council. Technical Writing Team Member for Epidemiology and Environmental Justice.
Chiu, W; Lynch, M; Lay, C; Antezana, A; Rogers, R. 2022. “Bayesian estimation of human toxicokinetics of PFOA, PFOS, PFHxS, and PFNA from studies of contaminated drinking water.” Environ. Health Perspect.
LaKind, J; Verner, M; Rogers, R; Goeden, H; Naiman, D; Marchitti, S; Lehmann, G; Hines, E; Fenton, S. 2022. “Current breast milk PFAS levels in the US and Canada: After all this time why don’t we know more?” Environ. Health Perspect.
Rogers, R; Breysse, P; Reh, C. 2021. “Advancing per- and polyfluoroalkyl substances (PFAS) research: An overview of ATSDR and NCEH activities and recommendations.” J. Expos. Sci. Environ. Epidemiol.
The addition of Dr. Rogers to our team strengthens Gradient’s robust capabilities in human toxicology, environmental risk, exposure assessment, and epidemiology. Learn more about our Risk Sciences here.
Please join us in welcoming Rachel Rogers.