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Rapport

Environmental Contaminants in an Urban Fjord, 2025

Ruus, Anders; Grung, Merete; Bæk, Kine; Rundberget, Thomas; Beylich, Bjørnar; Hansen, Linda; Enge, Ellen Katrin; Helberg, Morten

Publikasjonsdetaljer

Utgiver: Norsk institutt for vannforskning (NIVA)

År: 2026

ISBN: 9788257779498

Arkiv: hdl.handle.net/11250/5559802
Arkiv: nva.sikt.no/registration/01a03305ae4d-b7aa0d4d-936a-4537-a757-3b2b5aea2265

Sammendrag:
This report presents data from the last year of a 5-year period of the Urban Fjord programme. The programme started in 2013 and has since been altered/advanced. In 2025 the programme covers sampling and analyses of sediment, polychaetes, krill, shrimps, blue mussels, herring, cod, eider, and herring gull from the Inner Oslofjord. A total of 230 single compounds/isomers were analysed, and frequent detection was found of specific PFAS compounds (e.g. PFOS) in most matrices, certain QACs in several matrices (ATAC-C22 in all
matrices), specific benzothiazoles in eider blood, LCCPs in certain matrices, certain siloxanes in most matrices, metals in all matrices and PCBs in all matrices. Biomagnification was observed for 24 PCB congeners, LCCPs and D4 (siloxane; lipid wt. basis). Furthermore, biomagnification was observed for PFOSA, ATAC-C20 and ATAC-C22, as well as for the metals As and Hg (wet wt. basis).