In this still photo provided by Ethereal Films, Brenda Hampton attends the National PFAS Conference, in Boston, in June 2019. Hampton, a mother and grandmother, who believes tainted water led to her kidney problems, found that PFAS seemed to be in everything, including fast food packaging. Concerned that her children were ingesting the chemicals as they ate french fries and burgers, she joined the fight to get it banned from McDonald's. (Elijah Yetter-Bowman/Ethereal Films via AP)