The US Environmental Protection Agency (EPA) implements and enforces environmental laws that regulate air and water pollution, toxic substances, the use of pesticides, and waste recycling and reduction. On 14 March of 2023, EPA proposed the first national drinking water standard for PFAS, also known as “forever chemicals” or “Per- and Polyfluoroalkyl Substances”.
PFAS are a group of chemicals used to make fluoropolymer coatings and products that resist heat, oil, stains, grease, and water. PFAS are called forever chemicals because they are incredibly persistent and take very long time to break down in the environment and remain in our bodies for years. These chemicals are harmful substances that causes low birth weight, reproductive problems, multiple cancers, increased cholesterol, weight gain, and more.
This new proposal arose due to latest research report that shows that these chemicals may be more hazardous to human health than scientists originally thought and are probably more dangerous even at levels thousands of times lower than previously believed. To filter it out properly, you can use either granular activated carbon or reverse osmosis filters. These filters can reduce PFAS in water. Cheap filters like Brita filters do not remove PFAS.
I am an amazon affiliate, and here are some reverse osmosis filters that can help filter out PFAS.
The latest proposal is to limit the levels for two chemicals, PFOA and PFOS, at 4 parts per trillion (ppt). Perfluorooctanoic acid (PFOA) and Perfluorooctanesulfonic acid (PFOS) are members of a chemical group called per- and polyfluoroalkyl substances (PFAS). For other members like PFNA, PFHxS, PFBS and GenX chemicals, the EPA proposes not one standard for each but a limit for a mix of them.
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