PFAS Workshop (Oct. 17-19, 2023) and Request for Support

The US is now focused on what to do about the presence of PFOA/PFOS in groundwater and drinking water.  Hundreds of articles have appeared in the newspapers and trial lawyers have begun to advertise on TV to solicit persons to sue various parties.   Unfortunately, international agencies do not agree on underlying risk assessments.

TERA and the International Society for Regulatory Toxicology and Pharmacology (ISRTP) are working within the Alliance for Risk Assessment (ARA) to convening a workshop on understanding this disagreement as part of The Beyond Science and Decisions workshop series (see:

The objective of the workshop is to bring together 20 experts in the fields of toxicology and epidemiology who understand the scientific challenges surrounding PFOA/PFOS and various risk assessments.  The focus of the workshop is a comparison of the water limits that have been set by Australia/New Zealand, the EU, Canada, the World Health Organization, and the United States, where the underlying safe doses differ by about 500-100,000 fold.  The reasoning behind each of them will be presented by appropriate representatives.  This workshop should make it clear to toxicologists, epidemiologists, environmental scientists, policy makers and lawyers why there are diverging views and where resolution of these differences might be possible.

See attached letter for additional information:  Support Letter for BSD XIV