PFAS or “per-and polyfluoryoalkyl substances” are a class of compounds (several thousand) that contain a chain of carbon and fluorine in their structure. PFAS have been used globally for over 60 years, and are still being used because of their many useful properties – they are chemically inert; resistant to [...]
On March 29, 2023, the U.S. EPA published the proposed PFAS Drinking Water Regulations in the Federal Register. This proposed rule for Per- and Polyfluoroalkyl Substances (PFAS) includes Maximum Contaminant Levels (MCLs) of 4.0 ng/L for two PFAS constituents (PFOA and PFOS), and an MCL using a Hazard Index of [...]
What do non-stick coated pans, waterproof fabrics, oil-resistant food packaging, stain-resistant materials, and fire-fighting foam all have in common? They all potentially contain fluorinated compounds, and more specifically, are made with a suite of specialty chemicals called Perfluorooctanesulfonic acid (PFOS) and Perfluorooctanoic acid (PFOAs). PFOS and PFOAs both are fluorinated [...]
Toxicological studies have shown that elevated exposure to PFAS can potentially result in liver, endocrine, immunological, and reproductive effects, as well as cancer. In the last three years, over a dozen states have issued guidance and/or screening levels for PFAS in groundwater and/or soils, and the U.S. EPA has developed [...]
Toxicological studies have shown that elevated exposure to PFAS can potentially result in liver, endocrine, immunological, and reproductive effects, as well as cancer. In the last three years, over a dozen states have issued guidance and/or screening levels for PFAS in groundwater and/or soils, and the U.S. EPA has developed [...]
What do non-stick coated pans, waterproof fabrics, oil-resistant food packaging, stain-resistant materials, and fire-fighting foam all have in common? They all potentially contain fluorinated compounds, and more specifically, are made with a suite of specialty chemicals called Perfluorooctanesulfonic acid (PFOS) and Perfluorooctanoic acid (PFOAs). PFOs and PFOAs both are fluorinated [...]
