Why Chemicals in Plastics May Have Worse Effects at Lower Doses

Why is there so much debate about whether plastic chemicals like Bisphenol-A (BPA) or phthalates are harmful to humans in the amounts at which we’re exposed to them? And why is it so difficult to pass regulations in the United States to protect us from these chemicals? One reason is that regulators are accustomed to following the age-old adage that “the dose makes the poison.” But on a conference call this morning with theCollaborative on Health and the Environment (CHE), I learned how it is...