PFAS is a class of chemicals that is of real current concern. It stands for "perfluoalkyl substances" that are referred to as "forever chemicals" because once they are introduced into the environment, they last a long long time, and once they enter your body they persist for a long long time! What's more, they are dangerous at extremely low levels. People are alarmed because all over the country, municipalities and regulators are testing water supplies, and when they find PFAS at...

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