Dirty dozen

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As Dirty Dozen ( English dirty dozen ) known twelve toxins (u. A. Pesticides , industrial chemicals and by-products of combustion processes ) through which were POP -Convention or the Stockholm Convention on 22. May 2001 banned worldwide. The UN agreement entered into force when France was signed on May 17, 2004. All twelve toxins are organic chlorine compounds and are strongly suspected of being carcinogenic , mutagenic and teratogenic . Their danger results primarily from possible bioaccumulation (accumulation in tissue), persistence (longevity), high toxicity (poisonousness) and the possibility of long-distance transport (e.g. in the food chain or through other mechanisms). Some of the substances are also known as endocrine disruptors . From 2009 further substances have been included in the Stockholm Convention.

The twelve substances or substance groups concerned

structure Surname description
Structure of Aldrin
Aldrin insecticide
Structure of chlordane
(Mixture of substances)
Chlordane insecticide
Structure of dieldrin
Dieldrin insecticide
Structure of DDT
Dichlorodiphenyltrichloroethane (DDT) insecticide
Structure of endrin
Endrin insecticide
Structure of heptachlor
(Mixture of substances)
Heptachlor insecticide
Structure of hexachlorobenzene
Hexachlorobenzene (HCB) Fungicide , dry dressing agent
Structure of Mirex
Mirex insecticide
Structure of PCB
Polychlorinated biphenyls (PCB) Industrial chemicals
Structure of PCDD
Polychlorinated Dibenzodioxins
(PCDD, "Dioxins")
By-products of combustion processes
Structure of PCDF
Polychlorinated dibenzofurans
(PCDF, "furans")
By-products of combustion processes
Structure of toxaphene
(Mixture of substances)
Toxaphene ("camphechlor") insecticide

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