Per- and polyfluoroalkyl substances are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain. Different organizations use different definitions for PFAS, leading to estimates of between 8,000 and 7 …

This section focuses on chemistry, terminology, names, and acronyms for those PFAS most commonly reported in the environment, identified in scientific literature, and those PFAS most commonly tested for by current analytical methods.

4 days ago · In fact, in 2006, eight major manufacturers voluntarily joined the EPA’s PFOA Stewardship Program, which included a commitment to cease the manufacture and use of PFOA and PFOA-related chemicals and also an agreement for new PFAS chemistry to undergo enhanced regulatory review before being permitted on the market.

Oct 3, 2024 · There are thousands of PFAS chemicals, and they are found in many different consumer, commercial, and industrial products. This makes it challenging to study and assess the potential human health and environmental risks.

Oct 10, 2024 · Per- and polyfluoroalkyl substances (PFAS) are a large, complex group of synthetic chemicals that have been used in consumer products around the world since about the 1950s. They are ingredients in various everyday products.

Jun 30, 2020 · This commentary presents a scientific basis for managing as one chemical class the thousands of chemicals known as PFAS (per- and polyfluoroalkyl substances). The class includes perfluoroalkyl acid...

Per- and polyfluoroalkyl substances (PFAS) constitute a large family of fluorinated chemicals, exceeding several thousand that might be in commercial use or the environment, that vary widely in their chemical and physical properties. The number …

Jan 27, 2025 · Per- and polyfluoroalkyl substance (PFAS), any of a group of synthetic chemical compounds that contain fluorine atoms attached to chains of carbon atoms. Numerous different per- and polyfluoroalkyl substances (PFASs) have been synthesized, many of which possess highly useful properties when applied

Apr 15, 2024 · Per- and polyfluoroalkyl substances (PFAS) are a large class of thousands of synthetic chemicals that are used throughout society. However, they are increasingly detected as environmental pollutants and some are linked to negative effects on human health.

The scope of PFAS contamination in the United States and the potential public health threat makes our task to address these chemicals particularly challenging and urgent.