Environmental Dioxin Levels Declining

Dioxins are unwanted byproducts of combustion, industrial manufacturing, municipal processes, and natural sources. The amount of environmental dioxin observed peaked in the 1970s and has since been declining due to technological advances and regulatory action. For example, three studies indicate that environmental dioxin levels have decreased dramatically, even as PVC production has tripled (see chart) and every measure of global industrial output has soared. Dioxin levels are expected to continue declining.