Ashes from the incineration of medical waste are dumped around the site and in wells in spite of high levels of dioxin. This is the general practice with residues from medical waste incineration in Pakistan.
Source categories of waste contamination by POPs:
Polychlorinated dibenzo-p-dioxins
and dibenzofurans (dioxins)
Polychlorinated Biphenyls
Hexachlorobenzene