Asking For Help, PFAS Chemicals, Plastics Recycling, Depression Book. October 21, 2022. Part 2 Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A PFAS chemical structure. Credit: Shutterstock ( Shutterstock ) Hosted by John Dankosky and Shahla Farzan Produced by Science Friday and WNYC Studios