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Decreasing but still high levels of halogenated flame retardants in wetland birds in central Spain

AuthorsEljarrat, Ethel ; Aznar-Alemany, Òscar ; Sala, B.; Frías, Óscar; Blanco, Guillermo
KeywordsBird egg
Ecological hazard
Time trend
Issue DateAug-2019
CitationChemosphere 228: 83-92 (2019)
AbstractThe occurrence of classical and emerging halogenated flame retardants in bird samples collected between 2010–17 from the Castrejón reservoir (central Spain)was studied. Different wetland bird samples were analysed, including unhatched bird eggs and liver of dead nestlings. Polybrominated diphenylethers (PBDEs)were detected in all the samples at high concentration values, with levels up to 5167 ng/g lw. Dechloranes were found in 78% of analysed samples, but at lower concentration levels, between not detected (nd)and 2153 ng/g lw. The time trend evaluation over the sampling period showed an approximately 50% decline in mean concentrations of PBDEs. However, the most recent data for PBDEs (2016–17)still indicate that, in some cases, and based on reported LOECs, wetland birds were exposed to PBDE concentrations that are associated with possible ecological hazards. © 2019 Elsevier Ltd
Publisher version (URL)https://doi.org/10.1016/j.chemosphere.2019.04.051
Appears in Collections:(IDAEA) Artículos
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