Actor Mark Ruffalo is shining a spotlight on North Carolina communities struggling with contamination from “forever chemicals.”

In visits to Wilmington, Pittsboro and Raleigh on Tuesday and Wednesday, Ruffalo is working with local environmental groups to highlight the human impact of per- and polyflouroalkyl substances, widely known as PFAS, a class of long-lasting chemicals that have been linked to a wide range of human health impacts.

During an event Tuesday at Wilmington’s Thalian Hall, Ruffalo was scheduled to host a showing of “Dark Waters,” the recently released film in which he stars as Rob Bilott. Bilott, a Cincinnati, Ohio-based attorney, has spent much of the past 20 years facing off against DuPont due its contamination of Parkersburg, West Virginia, with PFAS chemical C8. That struggle is the core of Ruffalo’s film.