There are still 250 tons of ash lying around the incinerator site of former hazardous waste incinerator. While no POPs testing results have been made public the levels are likely be significant and heavy metal contamination exceeds limit values.
Source categories of waste contamination by POPs:
Polychlorinated dibenzo-p-dioxins
and dibenzofurans (dioxins)
Polychlorinated Biphenyls