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Field investigation to determine the environmental source of PCBs in a pig farm

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Vaccher, Vincent | Marchand, Philippe | Picherot, Mélanie | Dervilly Pinel, Gaud | Lesquin, Elodie | Brosseaud, Aline | Venisseau, Anais | Le Bizec, Bruno

Edité par CCSD ; Elsevier -

International audience. During a national monitoring plan, a pork fat sample was declared non-compliant for the sum of dioxins and PCB-DL (EU regulation). The National Reference Laboratory together with competent authorities conducted extended investigations to determine rapidly the contamination source at the farm level. A range of samples (n=129), representative of potential contamination sources, was selected for further characterization (fat, feed, materials, dust, soil) and was analyzed for PCDD/Fs and DL-PCBs by GC-HRMS. A hot spot was localized in the farm, which corresponded to a pre-feed storage tank, the paints of which presented huge DL-PCB concentrations (> 1x10(6) pg g(-1)), responsible for the contamination. The present case report describes a new source of PCB contamination, previously undescribed.

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