When we posted a little analysis of the new research on the toxic plastics chemical bisphenol A (BPA) leaching from polycarbonate bottles, we had no idea how many questions it would inspire. This month, instead of the usual Ask EWG feature, we've put together a post in which we answer as many of your BPA questions as we can. We know you've probably got even more questions. Ask away and we'll do our best to answer, but keep in mind that there are some questions we just don't have the answers to yet.
First, a little review: What is BPA? BPA is a chemical used in the production of certain kinds of plastics, including polycarbonate plastic (like hard, colored water bottles and 5-gallon drinking water coolers) and the lining of most food and beverage cans. BPA can leach from the plastic and into foods and beverages, especially when it's heated or used for long periods of time. The U.S. Centers for Disease Control found BPA in the bodies of 93 percent of the people they tested, which is especially troubling since the chemical is linked to breast and prostate cancer and neurobehavioral changes in offspring exposed in the womb. It's a good idea to avoid exposure to BPA whenever possible.