‘Forever chemicals’ are everywhere — but these companies are out to destroy them

Heather Koponen at her family home on the outskirts of Fairbanks, Alaska. She was stunned to learn that the well built by her parents in 1966 is contaminated with PFAS. (Photo courtesy of Koponen) Subscribe to Positive Charge : Apple Podcasts , Spotify , Amazon Music , All Episodes It was on something of a lark that Heather Koponen went to a screening of “Dark Waters” — the Mark Ruffalo film about dangerous “forever” chemicals fouling creeks and drinking water.