Susan Waldman : EPA was supposed to limit toxic pollutants like mercury 20 years ago . Only because of this were we lucky enough to learn about our daughter 's elevated mercury levels before it was too late . Waldman 's daughter had high levels of mercury , a neurotoxin , in her blood . Waldman : Mercury contributes to birth defects , nerve disorders , learning disabilities . It 's time to seriously limit the emissions that poison people , she said .
Susan Waldman : EPA was supposed to limit toxic pollutants like mercury 20 years ago . Waldman 's daughter had high levels of mercury , a neurotoxin , in her blood . Waldman : Mercury contributes to birth defects , nerve disorders , learning disabilities . It 's time to seriously limit the emissions that poison people , she said .