Polychlorinated dibenzodioxins
Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of long-lived polyhalogenated organic compounds that are primarily anthropogenic, and contribute toxic, persistent organic pollution in the environment.
U.S. Army Huey helicopter spraying Agent Orange over Vietnamese agricultural land
Spolana Neratovice chloralkali plant, air view
Viktor Yushchenko with chloracne after his TCDD poisoning incident
Dioxins and dioxin-like compounds
Dioxins and dioxin-like compounds (DLCs) are a group of chemical compounds that are persistent organic pollutants (POPs) in the environment. They are mostly by-products of burning or various industrial processes or, in the case of dioxin-like PCBs and PBBs, unwanted minor components of intentionally produced mixtures.
Decrease of dioxin concentrations in breast milk in Sweden and Finland
Decrease of dioxins in ambient air in different regions (redrawn from Dopico and Gomez, 2015)