Abstract
This chapter summarizes brominated flame retardant research in the Llobregat River basin. The work included the analysis of sediments and biota, with special attention on aspects such as occurrence, bioavailability, and bioaccumulation of these contaminants. The previous studies were focused only on the PBDE contamination issue; however, some emerging BFRs, such as HBB, PBEB, and DBDPE, were also included into the last works. For river sediment samples PBDE levels were between 2 and 10 ng/g dw, whereas coastal sediments showed higher concentrations, with values ranging between 25 and 134 ng/g dw. For both river and coastal sediments, the contribution of deca-BDE-209 on the total PBDE contamination was high, ranging between 50% and 99%. As regards biota samples, and more specifically, feral carps, PBDE levels ranged between 29 and 744 ng/g lw. Differences in PBDE profiles between sediments and fish were noticed, and they can be attributed to differential bioavailability or due to biotransformation processes. Finally, emerging BFRs were also detected in sediment samples, but at lower concentration levels than those observed for PBDEs.
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Abbreviations
- BFR:
-
Brominated flame retardant
- DBDPE:
-
Decabromodiphenylethane
- dw:
-
Dry weight
- EROD:
-
7-ethoxyresorufin O-deethylase
- GC:
-
Gas chromatography
- HBB:
-
Hexabromobenzene
- LOD:
-
Limit of detection
- lw:
-
Lipid weight
- MS:
-
Mass spectrometry
- NCI:
-
Negative chemical ionization
- PBDE:
-
Polybrominated diphenyl ether
- PBEB:
-
Pentabromoethylbenzene
- PCB:
-
Polychlorinated biphenyl
- PCDD:
-
Polychlorinated dibenzo-p-dioxin
- PCDF:
-
Polychlorinated dibenzofuran
- PLE:
-
Selective pressurized liquid extraction
- POP:
-
Persistent organic pollutant
- WWTP:
-
Wastewater treatment plant
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Acknowledgments
This research study was funded by the Spanish Ministry of Science and Innovation through the projects CEMAGUA (CGL2007-64551/HID) and SCARCE (Consolider Ingenio 2010 CSD2009-00065).
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Eljarrat, E., Barceló, D. (2012). Occurrence and Behavior of Brominated Flame Retardants in the Llobregat River Basin. In: Sabater, S., Ginebreda, A., Barceló, D. (eds) The Llobregat. The Handbook of Environmental Chemistry, vol 21. Springer, Berlin, Heidelberg. https://doi.org/10.1007/698_2011_139
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DOI: https://doi.org/10.1007/698_2011_139
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