Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Observation-Based Assessment of PBDE Loads in Arctic Ocean Waters
Responsible organisation
2016 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 50, no 5, 2236-2245 p.Article in journal (Refereed) Published
Abstract [en]

Little is known about the distribution of polybrominated diphenyl ethers (PBDE)-also known as flame retardants- in major ocean compartments, with no reports yet for the large deep-water masses of the Arctic Ocean. Here, PBDE concentrations, congener patterns and inventories are presented for the different water masses of the pan-Arctic shelf seas and the interior basin. Seawater samples were collected onboard three cross-basin oceanographic campaigns in 2001, 2005, and 2008 following strict trace-clean protocols. Sigma 14PBDE concentrations in the Polar Mixed Layer (PML; a surface water mass) range from 0.3 to 11.2 pg.L-1, with higher concentrations in the pan-Arctic shelf seas and lower levels in the interior basin. BDE-209 is the dominant congener in most of the pan-Arctic areas except for the ones close to North America, where pentaBDE and tetra-BDE congeners predominate. In deep-water masses, Sigma 14PBDE concentrations are up to 1 order of magnitude higher than in the PML. Whereas BDE-209 decreases with depth, the less-brominated congeners, particularly BDE-47 and BDE-99, increase down through the water column. Likewise, concentrations of BDE-71 -a congener not present in any PBDE commercial mixture increase with depth, which potentially is the result of debromination of BDE-209. The inventories in the three water masses of the Central Arctic Basin (PML, intermediate Atlantic Water Layer, and the Arctic Deep Water Layer) are 158 +/- 77 kg, 6320 +/- 235 kg and 30800 +/- 3100 kg, respectively. The total load of PBDEs in the entire Arctic Ocean shows that only a minor fraction of PBDEs emissions are transported to the Arctic Ocean. These findings represent the first PBDE data in the deep-water compartments of an ocean.

Place, publisher, year, edition, pages
2016. Vol. 50, no 5, 2236-2245 p.
National Category
Natural Sciences
Research subject
SWEDARCTIC 2001, Arctic Ocean 2001; SWEDARCTIC 2005, Beringia 2005; SWEDARCTIC 2008, ISSS-08
Identifiers
URN: urn:nbn:se:polar:diva-2916DOI: 10.1021/acs.est.5b05687OAI: oai:DiVA.org:polar-2916DiVA: diva2:1046101
Available from: 2016-11-11 Created: 2016-10-27 Last updated: 2016-11-11

Open Access in DiVA

No full text

Other links

Publisher's full text
In the same journal
Environmental Science and Technology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 7 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf