Federal Toxics Controls: The Patchwork Attack on PCBs
PCBs (polychlorinated biphenyls) have made a comeback. First brought to international attention in the late 1960s by outbreaks of "Yusho disease"1 in Japan and by discovery of trace concentrations in United States' fish, wildlife, food, food packaging, and human tissue,2 these synthetic industrial-electrical compounds were thought to have been brought under domestic control in 1972.