PFAS panic—America could waste trillions on a fabricated chemical scare

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.