Abstract

The Environmental Protection Agency has released its long-delayed 2,000-page draft reassessment of the health risks of dioxins. The report reaffirms EPA's 1985 conclusion that dioxins and related chemicals are a probable cause of cancer in humans. The report also presents new evidence that dioxins, even in trace amounts, may cause a wide range of other adverse human health effects, including disruption of regulatory hormones, reproductive and immune system disorders, and abnormal fetal development. Prepared by more than 100 scientists, including many outside EPA, the reassessment set off a new wave of controversy between environmental groups and the chemical and incineration industries. Some environmental groups are calling for an immediate ban on construction of new facilities that burn chlorinated wastes, while industry spokesmen are downplaying the risks from dioxins. At a news conference, Lynn R. Goldman, EPA assistant administrator for prevention, pesticides, and toxic substances, stressed EPA advanc...

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