Interlaboratory comparison study of PCBs congeners in coregonid fishes from an Arctic river
Varakina Y. Aksenov A. Lakhmanov D. Grjibovski A.M. Korobitsyna R. Trofimova A. Yakovlev S. Stotsky A. Demeshkin A. Yaeski E. Sorokina T.
September 2025Springer
Environmental Geochemistry and Health
2025#47Issue 9
Identification of emerging contaminants in fish species consumed by indigenous peoples remains an important task in the Arctic from the perspective of preserving human chemical safety. This study presents an interlaboratory comparison of the analysis results of polychlorinated biphenyl (PCB) congeners in coregonid fishes, using the Norilo-Pyasinskaya water system on the Taimyr Peninsula as an example, where a large enterprise is located. Two laboratories conducted analyses to quantify PCB levels in the muscle tissue of fish caught at various distances from the suspected contamination source. The Bland–Altman method demonstrated good agreement between the laboratories in the analysis of both the total PCBs and individual congeners 101, 118, 138, and 153. Small differences in results may be due to variations in detector calibration, chromatographic separation, selectivity for specific compounds, or both. Geographical differences in PCB content in coregonid fishes were observed depending on the distance from the suspected pollutant discharge point. Meanwhile, other fish parameters, such as age, weight, and lipid content, had little effect on PCB levels. The use of Standard Reference Materials (SRM) and control materials in laboratories is recommended, as they help confirm analytical results and ensure these procedures remain controlled.
Arctic , Fish , Interlaboratory comparison , PCBs , The Bland–Altman method
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Arctic Biomonitoring Laboratory, Northern (Arctic) Federal University Named After M.V. Lomonosov, Arkhangelsk, Russian Federation
Department of Epidemiology and Modern Vaccination Technologies, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
Reaviz University, St. Petersburg, Russian Federation
Department of Health Policy and Healthcare management, Al Farabi Kazakh National University, Almaty, Kazakhstan
N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Arkhangelsk, Russian Federation
Department of Geography and Hydrometeorology, Northern (Arctic) Federal University Named After M.V. Lomonosov, Arkhangelsk, Russian Federation
Russian Research Institute for Integrated Use and Protection of Water Resources, Rostov-On-Don, Russian Federation
Expert Center PORA (Project Office for Arctic Development), Moscow, Russian Federation
North-West Branch of Research and Production Association «Typhoon», St. Petersburg, Russian Federation
Department of Healthcare Organization and Preventive Medicine, North-Eastern Federal University, Yakutsk, Russian Federation
Arctic Biomonitoring Laboratory
Department of Epidemiology and Modern Vaccination Technologies
Reaviz University
Department of Health Policy and Healthcare management
N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences
Department of Geography and Hydrometeorology
Russian Research Institute for Integrated Use and Protection of Water Resources
Expert Center PORA (Project Office for Arctic Development)
North-West Branch of Research and Production Association «Typhoon»
Department of Healthcare Organization and Preventive Medicine
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