Congener Patterns of Polychlorinated Dibenzo-P-Dioxins
Science of the Total Environment 746 (2020) 141098 Contents lists available at ScienceDirect Science of the Total Environment journal homepage: www.elsevier.com/locate/scitotenv Review Congener patterns of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls as a useful aid to source identification during a contamination incident in the food chain Ron L.A.P. Hoogenboom a,⁎, Rainer Malisch b, Stefan P.J. van Leeuwen a, Huig Vanderperren c, Helge Hove d, Alwyn Fernandes f, Alexander Schächtele b, Martin Rose e,g a Wageningen Food Safety Research, Wageningen UR, Akkermaalsbos 2, 6708 WB Wageningen, the Netherlands b EURL for POPs, CVUA, Bissierstraße 5, 79114 Freiburg, Germany c FLVV, Leuvensesteenweg 17, 3080 Tervuren, Belgium d NIFES, Strandgaten 229, 5004 Bergen, Norway e FERA Science Ltd, Sand Hutton, York YO41 1LZ, UK f School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK g Manchester Institute of Biotechnology, University of Manchester, Manchester, UK HIGHLIGHTS GRAPHICAL ABSTRACT • Congener patterns are important tools for source identification. • TEQ contribution may be preferred over contribution to total sum. • Only PCDDs point to clay or chlorophenols, only PCDFs to PCB sources. • Mixed patterns point to minerals or burning processes. • Simple patterns indicate certain pesti- cides or herbicides. article info abstract Article history: Polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and biphenyls (PCBs) are still consid- Received 7 May 2020 ered among the most important groups of contaminants in the food chain. Self-control by food producers Received in revised form 13 July 2020 and official control by authorities are important activities that allow contaminant sources to be traced Accepted 18 July 2020 and promote further reduction in food and feed levels.
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