An anonymous reader writes: The Environmental Protection Agency is holding public hearings today to review a proposed safe exposure limit for dioxin, a known carcinogen and endocrine disruptor produced as a common industrial byproduct. It’s all but impossible to avoid exposure to dioxin. Women exposed to it pass it on to fetuses in the womb, and both breast milk and formula have been shown to contain the stuff. Research done by the Environmental Working Group has shown that a nursing infant ingests an amount 77 times higher than what the EPA has proposed as safe exposure. Adults are exposed to 1,200 times more dioxin than the EPA suggests is safe, mostly through eating meat, dairy and shellfish.