Levels and distribution of polybrominated diphenyl ethers in various tissues of birds of prey

Voorspoels, Stefan; Covaci, Adrian; Lepom, Peter; Jaspers, Veerle L.B.; Schepens, Paul

doi:10.1016/j.envpol.2005.12.027

Cited by 87 publications

(90 citation statements)

References 35 publications

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“…The lipid content of the brain of mice was 7.00%, much higher than that of liver (1.91%) and muscle tissues (0.59%), in the present study, the lowest concentrations of PBDEs were found in the brains of mice, ducks and chickens. Previous studies suggested that the BBB could be partly responsible for reduced PBDE accumulation in the brain relative to in other tissues (Baron et al, 2015;Voorspoels et al, 2006;Yang et al, 2011). Our results on several vertebrates support this proposal.…”

Section: Pbde Levels In the Brain Compared With Those In Other Tissuessupporting

confidence: 81%

“…Gebbink et al (2008) reported that, on a wet-weight basis, PBDE concentrations in the brains were one twentieth of those in the livers of polar bears from East Greenland. Additionally, on a lipid-weight basis, PBDE concentrations in brains were found to be significantly lower than those in other tissues of ducks, chickens, buzzards, owls and sparrow hawks Voorspoels et al, 2006Voorspoels et al, , 2007Yang et al, 2011;Zhang et al, 2008). A recent study of wild frogs also showed lower accumulation of PBDEs in the brain relative to other tissues (Li et al, 2014).…”

Section: Pbde Levels In the Brain Compared With Those In Other Tissuesmentioning

confidence: 93%

“…However, there is evidence that the BBB dose not completely restrict the entry of lipophilic pollutants, which may enter the brain via lipidmediated free diffusion or carrier/receptor-mediated transport (Baron et al, 2015;Pardridge, 2012). PBDEs have been detected in brain tissues from several wildlife species, including fish (Barni et al, 2014;Nilsen et al, 2014), frogs (Li et al, 2014;Liu et al, 2011), river otters (Basu et al, 2007), birds (Voorspoels et al, 2006), polar bears (Gebbink et al, 2008), and dolphins (Baron et al, 2015). Generally, PBDE concentrations in the brain were lower than in other tissues, consistent with protection by the BBB against PBDE accumulation in the brain.…”

Section: Introductionmentioning

confidence: 99%

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Accumulation of polybrominated diphenyl ethers in the brain compared with the levels in other tissues among different vertebrates from an e-waste recycling site

Zhao

Qin

et al. 2016

Environmental Pollution

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a b s t r a c tThis study aimed to investigate the accumulation of polybrominated diphenyl ethers (PBDEs) in the brain compared with that in other tissues among different vertebrates. We collected mice, chickens, ducks, frogs, and fish from an e-waste recycling region in Taizhou, China, and measured PBDE concentrations in brain, liver and muscle tissues. The levels of PBDE in the tissues of mice, chickens, ducks, frogs and fish ranged 0.45e206, 0.06e18.8, 1.83e112, 2.75e108, and 0.02e32.0 ng/g wet weight, respectively. Preferential distribution in the liver and muscle relative to the brain was observed for PBDEs in mice, chickens, ducks and frogs. However, a high retention in the brain compared to the liver and muscle was observed in fish. Comparison of the brain/liver concentration (B/L) ratios revealed differences in PBDEs accumulation in the brain among these vertebrates. PBDEs accumulation in the brain was greatest in fish, followed by frogs, while the lowest accumulation occurred in the brains of mammals and birds. The findings apparently coincided with the evolution of the blood-brain barrier (BBB) across vertebrates, i.e. the BBB of fish might be less efficient than those of mammals, birds and amphibian. Low brominated congeners (such as BDE-28, BDE-47 and BDE-99) were predominant in the brains of investigated vertebrates, whereas BDE-209 was most abundant in liver and muscle tissues of mice, chickens and ducks. Significant differences in B/L ratios among PBDE congeners were found in both mice and chickens (p < 0.05). Particularly in mice, the B/L ratios of PBDE congeners presented a declining trend with increased bromine number. Our findings suggested that low brominated congeners might have a higher capacity to penetrate the BBB and accumulate in the brain, whereas high brominated congeners such as BDE-209 might have less potency to pass through the barrier. Further experimental studies are needed to confirm our findings.

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Section: Pbde Levels In the Brain Compared With Those In Other Tissuessupporting

confidence: 81%

Section: Pbde Levels In the Brain Compared With Those In Other Tissuesmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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Accumulation of polybrominated diphenyl ethers in the brain compared with the levels in other tissues among different vertebrates from an e-waste recycling site

Zhao

Qin

et al. 2016

Environmental Pollution

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“…The PBDE congener profile in aquatic birds is usually dominated by BDE47 (15,16), while in bird feeding entirely or partially on elements of terrestrial food webs, BDE153 or BDE209 is the most abundant congener in most cases (17)(18)(19)(20)(21)(22). Even in the same species of birds, buzzards for example, the PBDE congener profile in one region is different from another region (20,23). In our previous publication (21), three different PBDE congener profiles were found in five species of waterbirds habitat in an e-waste region.…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation of Several Brominated Flame Retardants and Dechlorane Plus in Waterbirds from an E-Waste Recycling Region in South China: Associated with Trophic Level and Diet Sources

Zhang

Luo

Liu

et al. 2010

Environ. Sci. Technol.

125

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The present study is primarily designed to examine the role played by dietary sources on polybrominated diphenyl ethers (PBDE) congener profiles in waterbirds collected in an e-waste recycling region in South China. Some emerging halogenated flame retardants (HFRs), such as dechlorane plus (DP), 2,3,4,5,6-pentabromoethyl benzene (PBEB), pentabromotoluene (PBT), and 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), were also quantified. Stable isotopes (δ 15 N and δ 13 C) were analyzed to assess the trophic levels and dietary sources of the birds. PBDEs were found to be the predominant HFRs, followed by DP, PBT, PBEB, and BTBPE. The birds in which BDE209 was predominant have differential δ 13 C and δ 15N signatures compared with other birds, suggesting that dietary source is one of the important factors in determining the PBDE congener profile in birds. The levels of ΣPBDEs, PBEB, and PBT were significantly correlated with the trophic level (δ 15 N) for avian species which are located in a food chain, indicating the biomagnification potential of these compounds. No correlation was found between DP concentrations and trophic level of the birds. There is a significantly negative correlation between the fraction of anti-DP and δ 15 N, suggesting that the metabolic capability of DP in birds increases with the trophic level of the birds.

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“…Because of their ubiquity and potential toxicity, fish (Johnson and Olson 2001), birds (Voorspoels et al 2006), bird eggs (Jonathan et al 2006), and other biota (Pettersson et al 2004) had been used to monitor the distribution of PBDEs in the environment. It was reported that lower (tetra-and penta-) PBDEs accumulated and biomagnified in biota, while the higher congeners (deca-) were prevalent in aquatic environments and sediments (Martin et al 2004).…”

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confidence: 99%

Polybrominated Diphenyl Ethers in Mudsnails (Cipangopaludina cahayensis) and Sediments from an Electronic Waste Recycling Region in South China

Yang

Zhao

Qin

et al. 2008

Bull Environ Contam Toxicol

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Mudsnails and sediments from an electronic waste recycling region in South China were chosen to study the polybrominated diphenyl ethers (PBDEs) bioavailability of mudsnail in different ambient levels. Significant (p \ 0.05) correlations of biota-sediment accumulation factor (BSAF) versus the reciprocal of PBDE concentration in sediment (1/Sed) occurred in all quantitative PBDE congeners except BDE-209, showed that the BSAFs of PBDEs in mudsnails were increased with reciprocal increasing ambient levels. The BDE-183 correlation of mudsnail versus sediment (r = 0.580) was much lower than the correlation of BDE-209 versus BDE-183 in mudsnails (r = 0.812), indicated the main source of BDE-183 in mudsnails was from the debromination of higher brominated PBDEs.Keywords Polybrominated diphenyl ethers (PBDEs) Á Mudsnail Á Sediment Á Biota-sediment accumulation factor (BSAF) Polybrominated diphenyl ethers (PBDEs) are brominated flame retardants (BFRs) which are widely used as additive components in a range of consumer products, such as computers, televisions, textiles, furniture, and other building materials (Birnbaum and Staskal 2004). They can be dissolved in materials and then leached into the environment and entered biota (Strandberg et al. 2001). The electronic waste (e-waste) recycling especially uncontrolled dismantling aggravated the process (Julander et al. 2005). So PBDEs become ubiquitous in the environment (Ueno et al. 2004). Furthermore, most toxicological studies have shown that serious health consequences, such as thyroidogenic, estrogenic, and hepatic effects as well as neurodevelopmental disorders, could result from prolonged exposure to PBDEs (Darnerud et al. 2001). Two of the three commercial PBDE mixtures (''penta-BDE'' and ''octa-BDE'') have been banned by the European Union and several U.S. states. Currently, the ''deca-BDE'' commercial mixtures are still heavy used, and there is no regulation for the usage and disposal of deca-BDE.Because of their ubiquity and potential toxicity, fish (Johnson and Olson 2001), birds (Voorspoels et al. 2006), bird eggs (Jonathan et al. 2006), and other biota (Pettersson et al. 2004) had been used to monitor the distribution of PBDEs in the environment. It was reported that lower (tetra-and penta-) PBDEs accumulated and biomagnified in biota, while the higher congeners (deca-) were prevalent in aquatic environments and sediments (Martin et al. 2004). And dietary exposure studies revealed that the bioavailability of deca-BDE had produced a range of results (Huwe and Smith 2007). However, there are few studies on the PBDEs bioavailability of biomonitor under different ambient levels (Sellström et al. 1998). In this work, we chose mudsnails (Cipangopaludina cahayensis) and sediments from an e-waste recycling region in South China to study the PBDEs bioavailability of mudsnail in different ambient levels. We aimed the bioconcentration, 123Bull Environ Contam Toxicol (2009) 82:206-210 DOI 10.1007 congeners distribution and source of PBDEs in mudsnails and sedim...

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Levels and distribution of polybrominated diphenyl ethers in various tissues of birds of prey

Cited by 87 publications

References 35 publications

Accumulation of polybrominated diphenyl ethers in the brain compared with the levels in other tissues among different vertebrates from an e-waste recycling site

Accumulation of polybrominated diphenyl ethers in the brain compared with the levels in other tissues among different vertebrates from an e-waste recycling site

Bioaccumulation of Several Brominated Flame Retardants and Dechlorane Plus in Waterbirds from an E-Waste Recycling Region in South China: Associated with Trophic Level and Diet Sources

Polybrominated Diphenyl Ethers in Mudsnails (Cipangopaludina cahayensis) and Sediments from an Electronic Waste Recycling Region in South China

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