Green Toxicology LLC
106 Sumner Road
Brookline, MA 02445
T: 617.835.0093


Green Toxicology LLC is a consulting and research firm that assesses and helps to minimize risks to health and the environment. We have consulted on thousands of projects for hundreds of clients, including federal, state, and local governments, industry, law firms, community groups, and others. Our expertise includes health risk assessment, environmental and air quality modeling, toxicology, engineering, physics, data analysis, chemistry, and public health.

Of recent interest

Dr. Green is co-author on "Range of the Perfluorooctanoate (PFOA) Safe Dose for Human Health: An International Collaboration" in Regulatory Toxicology and Pharmacology 2023;145:15502. Link. (This paper was presented the Best Paper of the Year Award by the Regulatory and Safety Evaluation Specialty Section of the Society of Toxicology in March 2024.)

Our comments to Wisconsin Department of Natural Resources on proposed groundwater standards for PFOA and PFOS (pdf).

Our comments to MADPEP on proposed groundwater and soil standards for PFAS in proposed 2019 amendments to the Massachusetts Contingency Plan (pdf).

Our comments (pdf & xlsx, docket) on EPA's proposed Human Health Toxicity Values for GenX Chemicals, Docket EPA-HQ-OW-2018-0614.

Advancing the ball: Using guinea pigs to study perfluorinated alkyl substances (PFAS) (pdf).

PCB diffusion in concrete and sand (pdf).

Our comments (pdf, docket) on ATSDR's recent Draft Toxicological Profile for Perfluoroalkyls.

Laura C. Green, Ph.D., D.A.B.T.

Dr. Green has expertise in the areas of chemical carcinogenesis, toxicology and pharmacology, food chemistry, analytical chemistry, risk assessment, and regulatory policy.

Edmund A.C. Crouch, Ph.D.

Dr. Crouch has published widely in the areas of environmental quality, risk assessment, and presentation and analysis of uncertainties.