Bioaccumulation and biomagnification of classical flame retardants, related halogenated natural compounds and alternative flame retardants in three delphinids from Southern European waters. (August 2015)

• Record Type: Journal Article
• Authors: Barón, E.; Giménez, J.; Verborgh, P.; Gauffier, P.; De Stephanis, R.; Eljarrat, E.; Barceló, D.
• Is Part Of: Environmental pollution. Volume 203(2015)
• Page Start: 107
• Page End: 115
• Publication Date: 2015-08
• Subjects: Bioaccumulation -- Biomagnification -- Cetaceans -- Dechloranes -- Emerging BFRs -- Gulf of Cádiz -- Strait of Gibraltar -- MeO-PBDEs -- PBDEs; Pollution -- Periodicals; Pollution -- Environmental aspects -- Periodicals; Environmental Pollution -- Periodicals; Pollution -- Périodiques; Pollution -- Aspect de l'environnement -- Périodiques; Pollution -- Effets physiologiques -- Périodiques; Pollution; Pollution -- Environmental aspects; Periodicals; Electronic journals; 363.73
• DOI: 10.1016/j.envpol.2015.03.041
• Languages: English
• ISSNs: 0269-7491

Abstract

Abstract: Occurrence and behaviour of classical (PBDEs) and alternative (HNs, HBB, PBEB, DBDPE and HBCD) flame retardants, together with naturally produced MeO-PBDEs, were studied in short-beaked common dolphin ( Delphinus delphis ), bottlenose dolphin ( Tursiops truncatus ) and long-finned pilot whale ( Globicephala melas ) in two sampling locations from Southern European waters. PBDEs, Dec 602, Dec 603, DP, α-HBCD and two MeO-PBDEs were detected in all three species. ∑PBDEs were between 17 and 2680 ng/g lw; ∑HNs were between 1.1 and 59 ng/g lw; α-HBCD levels ranged between 3.2 and 641 ng/g lw; ∑MeO-PBDEs were between 34 and 1966 ng/g lw. Bottlenose dolphins were the most contaminated species and some individuals could present health risk for endocrine disruption since levels found were above the reported threshold (1500 ng/g lw). Stable isotope analysis was used to evaluate the biomagnification capacity of these compounds. PBDEs, MeO-PBDEs and Dec 602 showed a significant positive correlation with trophic position. Graphical abstract: Highlights: Several FRs were detected in three dolphin species from Southern European waters. Concentrations of classical FRs were higher than concentrations of alternative FRs. MeO-PBDE concentrations were generally similar to PBDE concentrations. Evidence of biomagnification capacity of some FRs was observed. Some individuals were above the threshold level associated to endocrine disruption. Abstract : Bioaccumulation and biomagnification of halogenated compounds in dolphins.