Vis enkel innførsel

dc.contributor.authorLangberg, Håkon Austad
dc.contributor.authorBreedveld, Gijs D.
dc.contributor.authorSlinde, Gøril Aasen
dc.contributor.authorGrønning, Hege Mentzoni
dc.contributor.authorHøisæter, Åse
dc.contributor.authorJartun, Morten
dc.contributor.authorRundberget, Thomas
dc.contributor.authorJenssen, Bjørn Munro
dc.contributor.authorHale, Sarah
dc.date.accessioned2020-10-23T09:38:49Z
dc.date.available2020-10-23T09:38:49Z
dc.date.created2020-10-20T18:04:48Z
dc.date.issued2020
dc.identifier.citationEnvironmental Science and Technology. 2020, 54 (20), 13077-13089.en_US
dc.identifier.issn0013-936X
dc.identifier.urihttps://hdl.handle.net/11250/2684714
dc.description.abstractThe environmental behavior of perfluorinated alkyl acids (PFAA) and their precursors was investigated in lake Tyrifjorden, downstream a factory producing paper products coated with per- and polyfluorinated alkyl substances (PFAS). Low water concentrations (max 0.18 ng L–1 linear perfluorooctanesulfonic acid, L-PFOS) compared to biota (mean 149 μg kg–1 L-PFOS in perch livers) resulted in high bioaccumulation factors (L-PFOS BAFPerch liver: 8.05 × 105–5.14 × 106). Sediment concentrations were high, particularly for the PFOS precursor SAmPAP diester (max 1 872 μg kg–1). Biota-sediment accumulation factors (L-PFOS BSAFPerch liver: 22–559) were comparable to elsewhere, and concentrations of PFAA precursors and long chained PFAA in biota were positively correlated to the ratio of carbon isotopes (13C/12C), indicating positive correlations to dietary intake of benthic organisms. The sum fluorine from targeted analyses accounted for 54% of the extractable organic fluorine in sediment, and 9–108% in biota. This, and high trophic magnification factors (TMF, 3.7–9.3 for L-PFOS), suggests that hydrophobic precursors in sediments undergo transformation and are a main source of PFAA accumulation in top predator fish. Due to the combination of water exchange and dilution, transformation of larger hydrophobic precursors in sediments can be a source to PFAA, some of which are normally associated with uptake from water.en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleFluorinated Precursor Compounds in Sediments as a Source of Perfluorinated Alkyl Acids (PFAA) to Biotaen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2020 American Chemical Societyen_US
dc.source.pagenumber13077-13089en_US
dc.source.volume54en_US
dc.source.journalEnvironmental Science and Technologyen_US
dc.source.issue20en_US
dc.identifier.doi10.1021/acs.est.0c04587
dc.identifier.cristin1840985
dc.relation.projectNorges forskningsråd: 268258en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Navngivelse 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Navngivelse 4.0 Internasjonal