Forever Chemicals

Facts for Prelims

Forever Chemicals

News: At least 45% of the nation's tap water could be contaminated with at least one form of PFAS known as 'forever chemicals,' according to a newly released study by the U.S. Geological Survey.

What are Forever chemicals?
• Forever chemicals are a class of chemicals collectively known as per- and polyfluorinated alkyl substances (PFAS), which were first introduced in the 1940s.
• Their high thermal and chemical stability, coupled with their ability to repel grease and water, make these chemicals uniquely suited for a variety of engineering and commercial uses.
• They are used to make nonstick cookware, water-repellent clothing, stain-resistant fabrics, cosmetics, firefighting foams and many other products that resist grease, water and oil.
• Research has linked exposure to certain PFAS to adverse health effects in humans, from an increased risk of certain cancers, increased obesity and high cholesterol risk, decreased fertility and developmental effects like low birth weight in children.