Voies d'exposition potentielles et cinétiques d'accumulation pour des composés per- et poly-alkyl-fluorés chez un amphipode d'eau douce, le gammare (Crustacea)

BERTIN, D.; LABADIE, Pierre; FERRARI, B.J.D.; SAPIN, A.; GARRIC, J.; GEFFARD, Olivier; BUDZINSKI, Hélène; BABUT, M.

doi:10.1016/j.chemosphere.2016.04.006

BERTIN, D.
Milieux aquatiques, écologie et pollutions [UR MALY]

LABADIE, Pierre

Environnements et Paléoenvironnements OCéaniques [EPOC]

FERRARI, B.J.D.
Milieux aquatiques, écologie et pollutions [UR MALY]

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Article de revue

Ce document a été publié dans

Chemosphere. 2016, vol. 155, p. 380-387

Résumé en anglais

Gammarids were exposed to sediments from a deposition site located on the Rh^one River (France) downstream of a fluoropolymer manufacturing plant. Gammarids accumulated to various extents four long-chain perfluoroalkyl carboxylic acids (PFCAs) from C9 to C13, one sulfonate, perfluorooctane sulfonate (PFOS) and three of its precursors (the perflurooctane sulfonamide (FOSA), the N-methyl perfluorooctane sulfonamidoacetic acid (MeFOSAA), the N-ethyl perfluorooctane sulfonamidoacetic acid (EtFOSAA) and the 6:2 fluorotelomer sulfonic acid (6:2 FTSA). Whatever the compound, the steady state was not achieved after a 3-week exposure; elimination was almost complete after a 3-week depuration period for perfluorononanoic acid (PFNA), PFOS, the three precursors and the 6:2FTSA. However, this was not the case for long-chain PFCAs, whose elimination rates decreased with increasing chain length. PFAS accumulation in gammarids occurred via the trophic and respiratory pathways, in proportions varying with the carbon chain length and the terminal moiety.< Réduire

Mots clés

Gammarus

Exposition des polluants

Mots clés en anglais

Sediment

Polluant exposure

URI

https://oskar-bordeaux.fr/handle/20.500.12278/202248

DOI

http://dx.doi.org/10.1016/j.chemosphere.2016.04.006

Unités de recherche

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805

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