Levels of PBDEs in plasma of juvenile starlings (Sturnus vulgaris) from British Columbia, Canada and assessment of PBDE metabolism by avian liver microsomes

Erratico, Claudio; Currier, Heidi A.; Szeitz, András; Bandiera, Stelvio M.; Elliott, John E.

doi:10.1016/j.scitotenv.2014.12.102

Cited by 15 publications

(2 citation statements)

References 28 publications

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“…The pentabrominated diphenyl ethers (PBDEs) are used as flame retardants, and are found in human [ 1 ] and animal tissues ( e.g. eagles [ 2 ], starlings [ 3 ], whales [ 4 ], fish [ 5 ]). The most prevalent PBDE congener in tissues is PBDE-47 (2,2′,4,4′-tetrabromodiphenyl ether) [ [6] , [7] , [8] ].…”

Section: Introductionmentioning

confidence: 99%

Carcinogenic activity of pentabrominated diphenyl ether mixture (DE-71) in rats and mice

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Carcinogenic activity of pentabrominated diphenyl ether mixture (DE-71) in rats and mice

et al. 2018

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“…Target analysis of HFRs usually focuses on a limited number of novel HFRs as the reference standards for novel HFRs are not often available . Moreover, many HFRs have biotransformation potential, for example, PBDEs could undergo dihydroxylation and methoxylation in avian liver microsomes and fish , while TBBPA was reported to form sulfation/glucuronidation conjugates in rodents . However, HFR metabolites are less studied compared with their parent compounds, which could partly be attributed to the absence of relevant reference standards .…”

Section: Introductionmentioning

confidence: 99%

Temporal Trends and Suspect Screening of Halogenated Flame Retardants and Their Metabolites in Blubbers of Cetaceans Stranded in Hong Kong Waters during 2013–2020

Wang

Ruan

Jin

et al. 2023

Environ. Sci. Technol.

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Halogenated flame retardants (HFRs) are a large class of chemical additives intended to meet flammability safety requirements, and at present, they are ubiquitous in the environment. Herein, we conducted the target analysis and suspect screening of legacy and novel HFRs and their metabolites in the blubber of finless porpoises (Neophocaena phocaenoides; n = 70) and Indo-Pacific humpback dolphins (Sousa chinensis; n = 35) stranded in Hong Kong, a coastal city in the South China Sea, between 2013 and 2020. The average concentrations of total target HFRs (ΣHFRs) were 6.48 × 10 3 ± 1.01 × 10 4 and 1.40 × 10 4 ± 1.51 × 10 4 ng/g lipid weight in porpoises and dolphins, respectively. Significant decreasing temporal trends were observed in the concentrations of tetra-/penta-/hexa-bromodiphenyl ethers (tetra-/penta-/hexa-BDEs) in adult porpoises stranded from 2013−2015 to 2016−2020 (p < 0.05), probably because of their phasing out in China. No significant difference was found for the concentrations of decabromodiphenyl ether and hexabromocyclododecane, possibly due to their exemption from the ban in China until 2025 and 2021, respectively. Eight brominated compounds were additionally identified via suspect screening. A positive correlation was found between the concentrations of tetra-BDE and methyl-methoxy-tetra-BDE (Me-MeO-tetra-BDE) (p < 0.05), indicating that the metabolism of tetra-BDE may be a potential source of Me-MeO-tetra-BDE in marine mammals.

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Occurrence, spatial distribution, and ecological risks of typical hydroxylated polybrominated diphenyl ethers in surface sediments from a large freshwater lake of China

Liú

Zhang

et al. 2017

Environ Sci Pollut Res

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Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) have been frequently observed in marine aquatic environments; however, little information is available on the occurrence of these compounds in freshwater aquatic environments, including freshwater lakes. In this study, we investigated the occurrence and spatial distribution of typical OH-PBDEs, including 2'-OH-BDE-68, 3-OH-BDE-47, 5-OH-BDE-47, and 6-OH-BDE-47 in surface sediments of Taihu Lake. 3-OH-BDE-47 was the predominant congener, followed by 5-OH-BDE-47, 2'-OH-BDE-68, and 6-OH-BDE-47. Distributions of these compounds are drastically different between sampling site which may be a result of differences in nearby point sources, such as the discharge of industrial wastewater and e-waste leachate. The positive correlation between ∑OH-PBDEs and total organic carbon (TOC) was moderate (r = 0.485, p< 0.05), and site S3 and S15 were excluded due to point source pollution, suggesting that OH-PBDEs concentrations were controlled by sediment TOC content, as well as other factors. The pairwise correlations between the concentrations of these compounds suggest that these compounds may have similar input sources and environmental behavior. The target compounds in the sediments of Lake Taihu pose low risks to aquatic organisms. Results show that OH-PBDEs in Lake Taihu are largely dependent on pollution sources. Because of bioaccumulation and subsequent harmful effects on aquatic organisms, the concentrations of OH-PBDEs in freshwater ecosystems are of environmental concern.

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Levels of PBDEs in plasma of juvenile starlings (Sturnus vulgaris) from British Columbia, Canada and assessment of PBDE metabolism by avian liver microsomes

Cited by 15 publications

References 28 publications

Carcinogenic activity of pentabrominated diphenyl ether mixture (DE-71) in rats and mice

Carcinogenic activity of pentabrominated diphenyl ether mixture (DE-71) in rats and mice

Temporal Trends and Suspect Screening of Halogenated Flame Retardants and Their Metabolites in Blubbers of Cetaceans Stranded in Hong Kong Waters during 2013–2020

Occurrence, spatial distribution, and ecological risks of typical hydroxylated polybrominated diphenyl ethers in surface sediments from a large freshwater lake of China

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