Octachlorodibenzodioxin formation on Fe(III)-montmorillonite clay.

  title={Octachlorodibenzodioxin formation on Fe(III)-montmorillonite clay.},
  author={Cheng Gu and Hui Li and Brian J. Teppen and Stephen A. Boyd},
  journal={Environmental science & technology},
  volume={42 13},
Polychlorinated dibenzo-p-dioxins (PCDDs) are ubiquitous and highly toxic environmental contaminants found in surface and subsurface soils and in clay deposits. Interestingly, the congener profiles of such PCDDs are inexplicably dissimilar to those of known anthropogenic (e.g., pesticide manufacture, waste incineration) or natural (e.g., forest fire) sources. Characteristic features of soil or clay-associated PCDDs are the dominance of octachlorodibenzo-p-dioxin (OCDD) as the most abundant… CONTINUE READING