(Table 1) Concentrations of polybrominated diphenyl ethers in liver and plasma samples of ringed seals (Phoca hispida)


The present study investigated the concentrations and patterns of PBDEs and hydroxylated (OH) PBDE analogues in two ringed seal populations: less contaminated Svalbard and more contaminated Baltic Sea. Mean concentration of hepatic sum-PBDE, which was dominated by BDE47, was six times higher in the ringed seals from the Baltic Sea compared to the seals from Svalbard. BDE47/sum-PBDE was higher in the seals from Svalbard compared to that for Baltic seals, while the trend was opposite for BDE153 and 154. The geographical difference in contaminant pattern of PBDEs in ringed seals could be explained by biotransformation via oxidative metabolism and/or by dietary differences. OH-PBDEs were detectable in the majority of plasma samples from both locations, and dominated by bioaccumulation of naturally occurring congeners. Low levels of 3-OH-BDE47 and 4'-OH-BDE49 in the Baltic ringed seals suggested minor oxidative biotransformation of BDE47. In the Baltic seals, BDE153/sum-PBDEs and BDE154/sum-PBDEs increased and BDE28/sum-PBDE decreased with increasing sum-POP concentration, which suggests BDE153 and 154 are more persistent than BDE28. Contrasting diets of the ringed seals in these two locations may influence the PBDE congener pattern due to selective long-range transport and direct effluent emissions to Svalbard and the Baltic, respectively.

Concentrations given per g wet weight. BDE17, 28, 49, 66, 85, 138, 183, and 190, BB101, HBCDD, 4'-OH-BDE17, 6'-OH-BDE17, 4-OH-BDE42, 5-OH-BDE47, 6'-OH-BDE49, 6-OH-BDE85, 6-OH-BDE99, and 2-OH-BDE123 were detected in <44% of the plasma samples. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150

Supplement to: Routti, Heli; Letcher, Robert J; Chu, Shaogang; van Bavel, Bert; Gabrielsen, Geir W (2009): Polybrominated diphenyl ethers and their hydroxylated analogues in ringed seals (Phoca hispida) from Svalbard and the Baltic Sea. Environmental Science & Technology, 43(10), 3494-3499

DOI https://doi.org/10.1594/PANGAEA.819453
Related Identifier https://doi.org/10.1021/es900211u
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.819453
Creator Routti, Heli (ORCID: 0000-0001-5560-888X); Letcher, Robert J; Chu, Shaogang; van Bavel, Bert; Gabrielsen, Geir W
Publisher PANGAEA
Publication Year 2009
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 163 data points
Discipline Earth System Research
Spatial Coverage (18.010W, 65.167S, 24.333E, 78.900N); Baltic Sea; Svalbard