What are PFAS chemicals?

Per-and polyfluoroalkyl substances, also known as PFAS, are a group of manmade chemicals that have been manufactured and used in a variety of industries since the 1950s. They are referred to as ‘forever chemicals’ – they are persistent in our bodies, mobile in the environment and many will not naturally degrade. PFAS chemicals are most often commercially used to create grease, water and stain resistant barriers for materials, including Teflon, grease-resistant take out containers, and upholstery and carpet treatments; these chemicals are also found in firefighting foam.  

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1. What are PFAS chemicals?
2. Where can PFAS be found?
3. Are there references that provide levels of PFAS measured in everyday products?
4. Why is Nantucket concerned about PFAS?
5. How can I help decrease PFAS pollution on the Island?
6. I live near the Airport. Where can I find information for the PFAS testing there?