Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in fish, seafood products and fish oil in Spain
2013
Blanco, Lucía | Martínez, Aníbal | Ferreira, Martiña | Vieites, Juan | Cabado, Ana
A total of 84 samples of wild and farmed fish, cephalopods and fish oils for animal feeding, traded in Spain, were analysed for polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in 2009–2012, by gas chromatography–ion trap tandem mass spectrometry (GC-MS-MS). The method was optimised for screening at moderate costs, allowing PCDD/Fs determination at 1 pg World Health Organization–toxic equivalent quantities (WHO-TEQ) g⁻¹ wet weight (w w) and dl-PCBs at 0.02 pg WHO-TEQ g⁻¹ w w. Concentrations in fish and cephalopods ranged from values below the limit of detection to 1.7 pg g⁻¹ WHO-TEQ sum PCDD/Fs and dl-PCBs, considered as safe with regard to EU legislation. Higher levels were found in cod livers (5.4–54.2) and fish oils (3.3–30.7), with one noncompliant sample in each group.
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