Polybrominated Dibenzo-p-Dioxins and Dibenzofurans - Environmental Health Criteria 205
Date
1998Author
United Nations Environment Programme
World Health Organization
International Labour Organisation
Inter-Organization Programme for the Sound Management of Chemicals (IOMC)
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RT Generic T1 Polybrominated Dibenzo-p-Dioxins and Dibenzofurans - Environmental Health Criteria 205 A1 United Nations Environment Programme, World Health Organization, International Labour Organisation, Inter-Organization Programme for the Sound Management of Chemicals (IOMC) YR 1998 LK http://hdl.handle.net/20.500.11822/29532 PB AB TY - GEN T1 - Polybrominated Dibenzo-p-Dioxins and Dibenzofurans - Environmental Health Criteria 205 AU - United Nations Environment Programme, World Health Organization, International Labour Organisation, Inter-Organization Programme for the Sound Management of Chemicals (IOMC) Y1 - 1998 UR - http://hdl.handle.net/20.500.11822/29532 PB - AB - @misc{20.500.11822_29532 author = {United Nations Environment Programme, World Health Organization, International Labour Organisation, Inter-Organization Programme for the Sound Management of Chemicals (IOMC)}, title = {Polybrominated Dibenzo-p-Dioxins and Dibenzofurans - Environmental Health Criteria 205}, year = {1998}, abstract = {}, url = {http://hdl.handle.net/20.500.11822/29532} } @misc{20.500.11822_29532 author = {United Nations Environment Programme, World Health Organization, International Labour Organisation, Inter-Organization Programme for the Sound Management of Chemicals (IOMC)}, title = {Polybrominated Dibenzo-p-Dioxins and Dibenzofurans - Environmental Health Criteria 205}, year = {1998}, abstract = {}, url = {http://hdl.handle.net/20.500.11822/29532} } TY - GEN T1 - Polybrominated Dibenzo-p-Dioxins and Dibenzofurans - Environmental Health Criteria 205 AU - United Nations Environment ProgrammeUnited Nations Environment Programme, World Health OrganizationWorld Health Organization, International Labour OrganisationInternational Labour Organisation, Inter-Organization Programme for the Sound Management of Chemicals (IOMC) UR - http://hdl.handle.net/20.500.11822/29532 PB - AB -Metadata
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Polybrominated dibenzo-p-dioxins (PBDDs) and polybrominated dibenzofurans (PBDFs) are almost planar tricyclic aromatic compounds.
Theoretically, 75 PBDDs and 135 PBDFs are possible. In addition, a large number of mixed halogenated congeners 1550 brominatedlchlorinated dibenzo-p-dioxins (PXDDs) and 3050 brominatedlchlorinated dibenzofurans (PXDFs) are theoretically
possible. Because of the complexity of the analytical procedures and paucity of analytical reference standards, it has been possible to characterize and determine only a small number of these compounds. The most toxic congeners are those substituted at positions 2, 3, 7, and 8. There are 7 2,3,7,8-substituted PBDDs and 10 2,3,7,8-substituted PBDFs, as well as 337 possible 2,3,7,8-substituted PXDDs and 647 possible 2,3,7,8-substituted PXDFs.
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