PMID- 38101477 OWN - NLM STAT- MEDLINE DCOM- 20240110 LR - 20240110 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 349 DP - 2024 Feb TI - Varying temporal trends in the levels of six groups of legacy persistent organic pollutants (POPs) in liver of three gadoid species from the North Sea. PG - 140939 LID - S0045-6535(23)03209-5 [pii] LID - 10.1016/j.chemosphere.2023.140939 [doi] AB - From 2005 to 2019, three gadoid species, Atlantic cod (Gadus morhua), haddock (Melanogrammus aeglefinus) and saithe (Pollachius virens), were sampled approximately every third year in the northeastern part of the North Sea. Liver samples were analyzed to investigate levels and temporal trends of six groups of persistent organic pollutants (POPs): polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT) and its degradation products, hexachlorocyclohexanes (HCHs), hexachlorobenzene (HCB), trans-nonachlor (TNC), and polybrominated diphenyl ethers (PBDEs). Some of the highest average concentrations were found in cod, the levels otherwise being similar between the three species and mostly below established threshold values. The levels of all the contaminants except HCB and TNC were higher than previously reported for cod and haddock in the Barents Sea. Significantly decreasing levels were found for Sigma7PCBs, SigmaDDTs, SigmaHCHs and Sigma15PBDEs in all three species, and for TNC in haddock and saithe, while there was no significant trend for TNC in cod. HCB levels increased significantly in cod and haddock and showed only a minor decrease in saithe. The observed time trends of legacy POPs demonstrate the persistence of some of the studied pollutants despite efforts to eliminate them from the marine environment. CI - Copyright (c) 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved. FAU - Boitsov, Stepan AU - Boitsov S AD - Institute of Marine Research, P.O. Box 1870, Nordnes, N-5817, Bergen, Norway. Electronic address: stepan.boitsov@hi.no. FAU - Frantzen, Sylvia AU - Frantzen S AD - Institute of Marine Research, P.O. Box 1870, Nordnes, N-5817, Bergen, Norway. Electronic address: sylvia.frantzen@hi.no. FAU - Bruvold, Are AU - Bruvold A AD - Institute of Marine Research, P.O. Box 1870, Nordnes, N-5817, Bergen, Norway; Department of Chemistry, University of Bergen, P.O. Box 7803, N-5020 Bergen, Norway. Electronic address: are.saele.bruvold@hi.no. FAU - Grosvik, Bjorn Einar AU - Grosvik BE AD - Institute of Marine Research, P.O. Box 1870, Nordnes, N-5817, Bergen, Norway. Electronic address: bjorn.grosvik@hi.no. LA - eng PT - Journal Article DEP - 20231213 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Persistent Organic Pollutants) RN - 4Z87H0LKUY (Hexachlorobenzene) RN - 0 (Water Pollutants, Chemical) RN - 3734-49-4 (nonachlor) RN - DFC2HB4I0K (Polychlorinated Biphenyls) RN - 0 (Environmental Pollutants) RN - 0 (Halogenated Diphenyl Ethers) SB - IM MH - Animals MH - Persistent Organic Pollutants/metabolism MH - Hexachlorobenzene/metabolism MH - North Sea MH - Environmental Monitoring MH - *Water Pollutants, Chemical/analysis MH - *Polychlorinated Biphenyls/metabolism MH - Liver/metabolism MH - *Gadiformes/metabolism MH - *Environmental Pollutants/metabolism MH - *Gadus morhua/metabolism MH - Halogenated Diphenyl Ethers/metabolism OTO - NOTNLM OT - Atlantic cod OT - Chlorinated pesticides OT - Haddock OT - PBDEs OT - PCBs OT - Saithe COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/12/16 11:43 MHDA- 2024/01/10 06:42 CRDT- 2023/12/15 19:26 PHST- 2023/10/06 00:00 [received] PHST- 2023/12/07 00:00 [revised] PHST- 2023/12/08 00:00 [accepted] PHST- 2024/01/10 06:42 [medline] PHST- 2023/12/16 11:43 [pubmed] PHST- 2023/12/15 19:26 [entrez] AID - S0045-6535(23)03209-5 [pii] AID - 10.1016/j.chemosphere.2023.140939 [doi] PST - ppublish SO - Chemosphere. 2024 Feb;349:140939. doi: 10.1016/j.chemosphere.2023.140939. Epub 2023 Dec 13.