perfluoroheptanoate; perfluorohexanesulfonate; perfluorooctanoic acid; perfluorononanoic acid; perfluorooctane sulfonate; perfluorooctane sulphonic acid; perfluorodecanoic acid and heneicosafluoroundecanoic acid - perfluorinated compounds used to make nonstick pans and leather goods. Possible carcinogens