6 pages in length. The extremely toxic contaminant TCDD – scientifically classified as 2,3,7,8-Terachlorodibenzo[b,e][1,4]dioxyn; 2,3, 7,8-tetrachlorodibenzo-p-dioxin; 2,3,6,7-tetrachlorodibenzodioxin; dioxin; TCDBD. C12H4C14O2 mol wt 321.97. C 44.77%, H 1.25%, Cl 44.04%, 0 9.94% -- is a by-product of chlorinated phenols and phenoxyherbicide manufacturing, as well as paper pulp chlorine bleaching and chlorine-containing waste combustion. Better ...