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Detailed analysis of polybrominated biphenyl congeners in bird eggs from Norway

, : Detailed analysis of polybrominated biphenyl congeners in bird eggs from Norway. Environmental Pollution 156(3): 1204-1210

Individual eggs of six species of birds from Norway representing different food chains were analysed for residues of polybrominated biphenyls (PBBs). In all species, the residue pattern was dominated by hexaBBs. The dominating congeners were PBB 153, PBB 154, and PBB 155. Whereas PBB 153 is present in technical hexabromobiphenyl, PBB 154 and PBB 155 are formed by the reductive debromination of decabromobiphenyl. This was evidenced by the detection of several heptaBBs and octaBBs all of which are typical degradation intermediates of PBB 209. Hepta- and octaBBs were more than one order of magnitude less abundant than the hexaBBs. The second most prevailing homologue group was pentaBBs. The most relevant pentabrominated isomers were PBB 99 and PBB 101. Concentrations of the three hexaBBs - PBB 153, PBB 154, and PBB 155 - amounted to 1.3-13 ng/g wet weight or 3-23% of the contamination with polybrominated diphenyl ethers. We provide for the first time detailed information on the PBB congeners present in eggs of bird of prey, and quantified three hexabromo congeners.


PMID: 18472199

DOI: 10.1016/j.envpol.2008.04.003

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