Of 40 congeners included in the analytical work, 8 polybrominated diphenyl ethers congeners were detected in river sediments, whereas 17 different PBDEs were found in fish samples
Occurrence and bioavailability of polybrominated diphenyl ethers and hexabromocyclododecane in sediment and fish from the Cinca River, a tributary of the Ebro River (Spain).
ENVIRONMENTAL SCIENCE & TECHNOLOGY, no. 9 (2004): 2603-2608
Fish and sediments from four places along the Spanish River Cinca were analyzed for polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCD). The samples were collected up- and downstream from Monzon, a heavily industrialized town draining to the river. PBDEs and HBCD were found in sediments at levels ranging from 2 to 42 ...更多
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- Brominated flame retardants (BFRs) are comprised of diverse classes or chemical compounds used in a variety of commercial applications.
- Twenty-three fish samples (Barbus graellsi) collected at the same places were analyzed, showing levels from nd to 446 ng/g wet weight for PBDEs and from nd to 1172 ng/g wet weight for HBCD.
- Of 40 congeners included in the analytical work, 8 PBDE congeners were detected in river sediments, whereas 17 different PBDEs were found in fish samples.
- Brominated flame retardants (BFRs) are comprised of diverse classes or chemical compounds used in a variety of commercial applications
- Of 40 congeners included in the analytical work, 8 polybrominated diphenyl ethers (PBDEs) congeners were detected in river sediments, whereas 17 different PBDEs were found in fish samples
- Concentrations of PBDEs and HBCD were slightly higher in muscle tissues than in liver samples obtained from the same specimen of fish
- HBCD contamination was greater than that observed for PBDEs. This is the first time HBCD has been found in environmental samples in Spain, and only one previous study reported HBCD levels in sediments from other countries 
- PBDE and HBCD levels were greater near the site of industrial impact
- Similar to our findings in sediment samples, site 3 was found to be the most contaminated zone followed by site 4 > site 1 ) site 2
- Concentrations of PBDEs and HBCD were slightly higher in muscle tissues than in liver samples obtained from the same specimen of fish.
- PBDE and HBCD concentrations are correlated with fish length indicating the bioaccumulation of these contaminants.
- The objective of this study was to determine 40 PBDE congeners and HBCD levels in sediments from four places along the Cinca River, a tributary of the Ebro River (Spain).
- A rapid and simple method for PBDE and HBCD determinations in sediment and fish samples was used.
- PBDEs were detected in all the sediment samples at concentrations ranging from 2 to 42 ng/g dw.
- Literature indicates that the major congeners detected in sediment samples were BDE-47, 99, 100, and 209 .
- PBDEs were detected in all the muscle and liver samples at concentrations ranging from 0.2 to 436 and 0.1 to 446 ng/g ww, respectively.
- HBCD contamination was similar or greater than that observed for PBDEs. Table 3 shows the mean concentrations of BDE congeners as well as of HBCD in the 4 sites selected in this study.
- Sellstrom et al  reported concentration levels between nd and 8000 ng/g lw in muscle fish samples from a Swedish river with numerous textile industries.
- HBCD contamination in the Swedish work as well as in the study was similar or higher than that found for PBDEs. In the work, concentrations of HBCD and total PBDEs were correlated in individual fish (R2 ) 0.6 and R2 ) 0.5 for muscle and liver samples respectively, n ) 11) (Figure 3).
- BDE-209, the dominant congener of the total PBDE contamination in sediments, was not detected in biota samples.
- Ratios between total PBDE levels in muscle and in liver corresponding to the same individual fish (RM/L) were calculated for samples collected at the most contaminated site.
- Table1: Sample Characteristics of Barbel Specimens Collected in This Study sampling site specimen length (cm) weight (g) agea sexb
- Table2: Concentrations of PBDEs and HBCDa in the River Sediment Samples of the 4 Sites Studied site 1 site 2 site 3 site 4
- Table3: Mean Concentrations of PBDEs and HBCDa in the Muscle Tissue and Liver Samples of the 4 Sites Studied site 1 muscle liver mean1 mean1 (n ) 4) (n ) 4)
- Table4: Ratios between the Concentrations of PBDEs and HBCD Found in Fish (ng/g dry weight) and the Concentrations Found in Sediment (ng/g organic carbon) from Site 3 muscle to muscle to liver to sediment, ratio
- Table5: Regression Parameters for PBDE and HBCD Concentration Measurements in Sites 3 and 4 variable
- A.d.l.C. acknowledges a grant from Departament d’Universitats, Recerca i Societat de la Informaciode la Generalitat de Catalunya (2003FI 00092)
fish samples: 23
PBDEs and HBCD were found in sediments at levels ranging from 2 to 42 ng/g dry weight and from not detected (nd) to 514 ng/g dry weight, respectively. Twenty-three fish samples (Barbus graellsi) collected at the same places were also analyzed, showing levels from nd to 446 ng/g wet weight for PBDEs and from nd to 1172 ng/g wet weight for HBCD. The lowest values for both sediment and fish samples were found upstream of the industry
fish samples: 23
The work was based on samples collected up- and downstream from a heavily industrialized area. Moreover, 23 fish samples were collected along the same sampling points with the aim to obtain some information about the behavior of PBDEs and HBCD in biota, i.e., bioavailability and bioaccumulation. A rapid and simple method for PBDE and HBCD determinations in sediment and fish samples was used
Attempts were made to collect several fishes from the same locations as the sediment samples. A total of 23 specimens of barbel (Barbus graellsi) were collected by DC electric pulse (Table 1). Fishes were killed and weighed, and the fork length
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