Low doses of endocrine disruptors can have big effects

Low doses, big effects: Scientists seek 'fundamental changes' in testing, regulation of hormone-like chemicals March 15, 2012, Environmental Health News Maria Cone
Small doses of chemicals that are endocrine disruptors, which have been identified as being present in fracking fluid can have big health effects. That is a main finding of a new report, three years in the making, published on March 14, 2012 by a team of 12 scientists who study hormone-altering chemicals. Dozens of substances that can mimic or block hormones are found in the environment, the food supply and consumer products, including plastics, pesticides and cosmetics. One of the biggest controversies is whether the tiny doses that most people are exposed to are harmful. Researchers led by Tufts University’s Laura Vandenberg concluded after examining hundreds of studies that health effects “are remarkably common” when people or animals are exposed to low doses. "Fundamental changes in chemical testing are needed to protect human health," they wrote.

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