UMR CNRS 5805 EPOC
Environnements et Paléoenvironnements
Océaniques et Continentaux

        

Consignes de Sécurité et Numéros d'Urgence
(à l'usage des personnels du laboratoire)

le 10-11-2023 à 11:00

Lieu Salle Atmosphère, Bâtiment B18N, OASU, Université de Bordeaux Intervenant(s) Maria Lagerström, Chalmers University of Technology, Université de Göteborg

Antifouling paints are applied to boat and ship hulls to prevent the settlement of marine growth. Most paints do so through the release of biocides such as copper, but measuring the rate of this release to the water phase in the field is challenging. In recent years, a method using X-Ray Fluorescence spectrometry (XRF) has been developed which enables the determination of field release rates of copper. With the help of XRF analysis, studies have been able to show that antifouling paints leach copper in excess of what manufacturers claim and also in excess of that required to prevent fouling. In this talk you will learn more about how the XRF method works and how studies on the release rate of biocides from antifouling paints can be used to limit their environmental impact through improved regulation.