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Predominance of BDE-209 and other higher brominated diphenyl ethers in eggs of white stork (Ciconia ciconia) colonies from Spain
Abstract Polybrominated 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 1.64ng/g (wet weight, w.w.) for the rural colony and 9.08ng/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>BDE-208>BDE-206 does not correspond to any known technical PBDE mixture and is evidence for possible BDE-209 degradation.
Research Highlights ► Higher brominated BDEs dominate the congener profiles in eggs of white stork. ► Evidence for BDE-209 environmental debromination in white stork eggs. ► Evidence for BDE-209 bioavailability and bioaccumulation in eggs from terrestrial species.
Predominance of BDE-209 and other higher brominated diphenyl ethers in eggs of white stork (Ciconia ciconia) colonies from Spain
Abstract Polybrominated 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 1.64ng/g (wet weight, w.w.) for the rural colony and 9.08ng/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>BDE-208>BDE-206 does not correspond to any known technical PBDE mixture and is evidence for possible BDE-209 degradation.
Research Highlights ► Higher brominated BDEs dominate the congener profiles in eggs of white stork. ► Evidence for BDE-209 environmental debromination in white stork eggs. ► Evidence for BDE-209 bioavailability and bioaccumulation in eggs from terrestrial species.
Predominance of BDE-209 and other higher brominated diphenyl ethers in eggs of white stork (Ciconia ciconia) colonies from Spain
Muñoz-Arnanz, Juan (author) / Sáez, Mónica (author) / Aguirre, José I. (author) / Hiraldo, Fernando (author) / Baos, Raquel (author) / Pacepavicius, Grazina (author) / Alaee, Mehran (author) / Jiménez, Begoña (author)
Environmental International ; 37 ; 572-576
2010-11-26
5 pages
Article (Journal)
Electronic Resource
English
PBDEs , BDE-209 , Eggs , Birds , White stork , Doñana National Park