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Braviporc - Retardateurs de flammes bromés dans produits avicoles et porcins : état des lieux, modalités de transfert et facteurs de risques

Abstract : Brominated flame retardants (BFRs) are synthetic substances primarily used as additive in insulatingmaterials, including polystyrenes (PS). Among them, polybrominated diphenyl ethers (PBDEs) andhexabromocyclododecane (HBCD) can accumulate in animal tissues. Overall, their concentrations inanimal-derived foodstuffs are low, but some rare samples of eggs, poultry meat and pork displayconcentrations exceeding 100 to 1000 times the median value. Sampling and field surveys carried ouwithin the BrAviPorc project (CASDAR, n° 1256) allowed i) to confirm the low concentration of PBDEand HBCD in French poultry and pork products, ii) to establish that insulating foams containing PS maybe sources of HBCD in livestock buildings, which lead to highly contaminated DAOAs if animalsaccidentally ingest them. In vivo experiments carried out with laying hens, broilers and growing pigsshowed that -HBCD accumulates preferentially in the tissues richest in neutral lipids. Thus, chickenleg is 10 times more concentrated in -HBCD than breast. For the first time, a mathematical model,common to the three animal models and taking into account their respective lipid dynamics, wascalibrated. It can be adapted to other lipophilic and nonpolar pollutants
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Submitted on : Wednesday, July 4, 2018 - 8:04:55 PM
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Angélique Travel, Ronan Cariou, Eric Royer, Bertrand Méda, Elisabeth Baéza, et al.. Braviporc - Retardateurs de flammes bromés dans produits avicoles et porcins : état des lieux, modalités de transfert et facteurs de risques. Innovations Agronomiques, INRAE, 2018, 63, pp.2-24. ⟨10.15454/1.5191155195255698E12⟩. ⟨hal-01830316⟩

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