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Predominance of BDE-209 and other higher brominated diphenyl ethers in eggs of white stork (Ciconia ciconia) colonies from Spain

AuthorsMuñoz-Arnanz, Juan; Sáez, Mónica; Aguirre, José I.; Hiraldo, F. ; Baos, Raquel ; Pacepavicius, Grazina; Alaee, Mehran; Jiménez, Begoña
White stork
Doñana National Park
Issue Date2011
CitationEnvironment International 37 (2011) 572–576
AbstractPolybrominated diphenyl ethers (PBDEs) are ubiquitous pollutants for which there is still a lack of knowledge about the environmental behavior and fate of the higher brominated congeners (octa- to deca-BDEs). In this study, the PBDE content and congener profiles in failed eggs from two colonies of white stork (Ciconia ciconia) in Spain were studied. The average total PBDE concentration was 1.64 ng/g (wet weight, w.w.) for the rural colony and 9.08 ng/g (w.w.) for the urban colony. Higher brominated BDEs dominated the congener profiles of both colonies. Of particular interest was the determination of BDE-209 as the dominant congener accounting for 44.1% and 38.6% of the total PBDE content in the rural and urban colonies, respectively. BDE-202, considered an indicator of BDE 209 debromination, was detected in 83% and all of the samples from rural and urban colonies, respectively. The observed congener profile in which BDE-207 N BDE-208 N BDE-206 does not correspond to any known technical PBDE mixture and is evidence for possible BDE-209 degradation.
Publisher version (URL)http://dx.doi.org/10.1016/j.envint.2010.11.013
Appears in Collections:(EBD) Artículos
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