America’s PFAS rules rest on a questionable 80-year-old assumption born of Hiroshima and Nagasaki: any exposure above zero to certain chemicals is harmful, so levels must be driven to the vanishing point to protect public health. New research by ACSH contributor and toxicologist Edward Calabrese points to a troubling conclusion—the US could spend trillions to prevent an essentially harmless exposure.
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For decades, regulators have treated PFAS as chemicals that should be driven as close to zero as technology allows, regardless of the cost. But what if the scientific foundation for that strategy is incomplete—or even wrong? A new body of research argues that America may be spending trillions of dollars fighting a threat at exposure levels that pose little or no measurable risk.
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