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Methoxylated polybrominated diphenyl ethers (MeO-PBDEs) are major contributors to the persistent organobromine load in sub-Arctic and Arctic marine mammals, 1986-2009
Örebro University, School of Science and Technology.
Örebro University, School of Science and Technology.ORCID iD: 0000-0001-6217-8857
University of Aarhus, Roskilde, Denmark.
Innovation Center Iceland, Reykjavik, Iceland.
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2012 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 416, p. 482-489Article in journal (Refereed) Published
Abstract [en]

A selection of MeO-BDE and BDE congeners were analyzed in pooled blubber samples of pilot whale (Globicephala melas), ringed seal (Phoca hispida), minke whale (Balaenoptera acutorostrata), fin whale (Balaenoptera physalus), harbor porpoise (Phocoena phocoena), hooded seal (Cystophora cristata), and Atlantic white-sided dolphin (Lagenorhynchus acutus), coveting a time period of more than 20 years (1986-2009). The analytes were extracted and cleaned-up using open column extraction and multi-layer silica gel column chromatography. The analysis was performed using both low resolution and high resolution GC-MS. MeO-PBDE concentrations relative to total PBDE concentrations varied greatly between sampling periods and species. The highest MeO-PBDE levels were found in the toothed whale species pilot whale and white-sided dolphin, often exceeding the concentration of the most abundant PBDE, BDE-47. The lowest MeO-PBDE levels were found in fin whales and ringed seals. The main MeO-BDE congeners were 6-MeO-BDE47 and 2'-MeO-BDE68. A weak correlation only between BDE47 and its methoxylated analog 6-MeO-BDE47 was found and is indicative of a natural source for MeO-PBDEs.

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 416, p. 482-489
Keywords [en]
Arctic, Marine mammals, North Atlantic Ocean, Polybrominated diphenyl ethers (PBDEs), Methoxylated polybrominated diphenyl, ethers (MeO-PBDEs), Sub-Arctic
National Category
Chemical Sciences
Research subject
Environmental Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-22316DOI: 10.1016/j.scitotenv.2011.12.010ISI: 000301155200055PubMedID: 22225820Scopus ID: 2-s2.0-84856232493OAI: oai:DiVA.org:oru-22316DiVA, id: diva2:513398
Available from: 2012-04-02 Created: 2012-04-02 Last updated: 2017-12-07Bibliographically approved

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Rotander, Annavan Bavel, Bert

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