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  2. chemical
  3. organic substance
  4. heterocyclic compound
  5. dioxin
  6. polychlordibenzo-p-dioxin
Scope note
PCDD are formed (along with variants including furans) when compounds containing chlorine are burnt at low temperature in improperly operated/designed domestic refuse and industrial waste incinerators where PCDDs can be found in both the flue gases and the fly ash.
Accepted term: 14-May-2014