PFAS, or per- and polyfluoroalkyl substances, are a class of chemicals that have a special bond of carbon and fluorine atoms, making them strong and resistant to water, dirt, heat and oil. For that reason, they’re used in everyday items as varied as microwave popcorn bags, water-repellent clothing, stain-resistant carpets, cosmetics, dental floss, nonstick frying pans — and ski wax.
The problem is that exposure to PFAS can cause damage to the liver and immune system. PFAS have also been linked to low birth weight, birth defects and developmental delays as well as increased risk of some prostate, kidney and testicular cancers.
Once they’re in the environment, they are highly mobile in water and air and don’t break down, earning them the name “forever chemicals.” They can contaminate the soil and drinking water, and can make their way into crops and livestock.
