Forever Chemicals, or per- and polyfluoroalkyl substances (PFAS), have been around since the 1940s and are used in everything from non-stick pans to take-out containers to cosmetics and fire retardant. \n\nBut flash-forward to today and the long-lasting, man-made substances have been found inside Canadian blood samples \u2013 brought in through the air and dust we breathe, and even in our drinking water. And now the federal government is proposing to list them as toxic.\n\nToday on Front Burner, we\u2019re asking why forever chemicals are seemingly everywhere, what can be done about them, and why it\u2019s taken so long for the government to act.\n\t\nJoining us is Miriam Diamond, a professor at the University of Toronto\u2019s Department of Earth Sciences and School of the Environment.\n\nFor transcripts of this series, please visit: https://www.cbc.ca/radio/frontburner/transcripts