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Bioaccumulation and biomagnification of emerging and classical flame retardants in bird eggs of 14 species from Doñana Natural Space and surrounding areas (South-western Spain)

AuthorsBarón, E.; Máñez, Manuel ; Andreu, Ana C. ; Sergio, Fabrizio ; Hiraldo, F. ; Eljarrat, Ethel ; Barceló, Damià
KeywordsIsotope Analysis
Issue Date2014
CitationEnvironment International 68: 118- 126 (2014)
AbstractThe occurrence of classical (polybrominated diphenyl ethers, PBDEs) and emerging FRs (dechloranes, hexabromobenzene (HBB), pentabromoethyl benzene (PBEB) and decabromodiphenyl ethane (DBDPE)) in unborn eggs of 14 different species from Doñana Natural Space and surrounding areas was studied.PBDEs, Dec-602, Dec-603 and DP were detected in all the species, whereas HBB, PBEB, DBDPE and Dec-604 were not detected in any sample. σPBDE and σDechlorane levels ranged from 1.40 to 90.7, and from 0.77 to 260. ng/g. lw, respectively. BDE-209 was the most abundant BDE congener in almost all the species, whereas Dec-602 was the predominant among dechloranes. In general, levels of PBDEs and dechloranes were similar and even higher for dechloranes, probably indicating the increasing use of dechloranes as a result of legal restrictions on PBDEs. In both cases, the most contaminated specie was the white stork. Using stable isotope characterization, differences among species and possible biomagnification processes were also evaluated. PBDE levels increased as the trophic position increased, showing biomagnification capacity. The same behavior was observed for Dec-602 and Dec-603; however, DP levels were not linearly correlated with trophic level. These results show that more attention should be given to emerging FRs such as dechloranes since they show similar environmental behavior as PBDEs. © 2014 Elsevier Ltd.
Identifiersdoi: 10.1016/j.envint.2014.03.013
issn: 1873-6750
Appears in Collections:(EBD) Artículos
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