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dc.contributor.authorArriola, Aline
dc.contributor.authorAl Saify, Insam
dc.contributor.authorWarner, Nicholas Alexander
dc.contributor.authorHerzke, Dorte
dc.contributor.authorHarju, Mikael
dc.contributor.authorAmundsen, Per-Arne
dc.contributor.authorEvenset, Anita
dc.contributor.authorMöckel, Claudia
dc.contributor.authorKrogseth, Ingjerd Sunde
dc.date.accessioned2024-06-11T06:57:56Z
dc.date.available2024-06-11T06:57:56Z
dc.date.issued2024-05-16
dc.description.abstractOur understanding of the environmental behavior, bioaccumulation and concentrations of chlorinated paraffins (CPs) and Dechloranes (Dec) in the Arctic environment is still limited, particularly in freshwater ecosystems. In this descriptive study, short chain (SCCPs) and medium chain (MCCPs) CPs, Dechlorane Plus (DP) and analogues, and polychlorinated biphenyls (PCBs) were measured in sediments, benthic organisms, three-spined stickleback (Gasterosteus aculeatus), Arctic char (Salvelinus alpinus) and brown trout (Salmo trutta) in two Sub-Arctic lakes in Northern Norway. Takvannet (TA) is a remote lake, with no known local sources for organic contaminants, while Storvannet (ST) is situated in a populated area. SCCPs and MCCPs were detected in all sediment samples from ST with concentration of 42.26–115.29 ng/g dw and 66.18–136.69 ng/g dw for SCCPs and MCCPs, respectively. Only SCCPs were detected in TA sediments (0.4–5.28 ng/g dw). In biota samples, sticklebacks and benthic organisms showed the highest concentrations of CPs, while concentrations were low or below detection limits in both char and trout. The congener group patterns observed in both lakes showed SCCP profiles dominated by higher chlorinated congener groups while the MCCPs showed consistency in their profiles, with C14 being the most prevalent carbon chain length. Anti- and syn-DP isomers were detected in all sediment, benthic and stickleback samples with higher concentrations in ST than in TA. However, they were only present in a few char and trout samples from ST. Dec 601 and 604 were below detection limits in all samples in both lakes. Dec 603 was detected only in ST sediments, sticklebacks and 2 trout samples, while Dec 602 was the only DP analogue found in all samples from both lakes. While there were clear differences in sediment concentrations of DP and Dec 602 between ST and TA, differences between lakes decreased with increasing δ<sup>15</sup>N. This pattern was similar to the PCB behavior, suggesting the lake characteristics in ST are playing an important role in the lack of biomagnification of pollutants in this lake. Our results suggest that ST receives pollutants from local sources in addition to atmospheric transport.en_US
dc.identifier.citationArriola, Al Saify, Warner, Herzke, Harju, Amundsen, Evenset, Möckel, Krogseth. Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes. Frontiers in Toxicology. 2024;6en_US
dc.identifier.cristinIDFRIDAID 2274965
dc.identifier.doi10.3389/ftox.2024.1298231
dc.identifier.issn2673-3080
dc.identifier.urihttps://hdl.handle.net/10037/33770
dc.language.isoengen_US
dc.publisherFrontiers Mediaen_US
dc.relation.journalFrontiers in Toxicology
dc.relation.projectIDNorges forskningsråd: 244298en_US
dc.relation.projectIDNorges forskningsråd: 287114en_US
dc.relation.projectIDNorges forskningsråd: 267574en_US
dc.relation.projectIDFramsenteret: 132018en_US
dc.relation.projectIDNILU: 119008en_US
dc.relation.projectIDNILU: 117044en_US
dc.relation.projectIDNILU: 117056en_US
dc.relation.projectIDNILU: 115027en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleDechloranes and chlorinated paraffins in sediments and biota of two subarctic lakesen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)