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(2) Production(s) de l'année 2024
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Étude micromécanique et microstructurale au sein de l’albumen amylacé du grain de blé par AFM 
Auteur(s): Ramonda Michel, Arnould Olivier, George M., Delenne Jean-Yves, Lullien-Pellerin Valérie
(Affiches/Poster)
25e forum des microscopies à sonde locale (Lyon, FR), 2024-04-22
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A threshold model of plastic waste fragmentation: new insights into the distribution of microplastics in the ocean and its evolution over time
Auteur(s): George M., Nallet Frédéric, Fabre P.
(Article) Publié:
Marine Pollution Bulletin, vol. 199 p.116012 (2024)
Texte intégral en Openaccess : 
Ref HAL: hal-04399066_v1
Ref Arxiv: 2307.04162
DOI: 10.1016/j.marpolbul.2023.116012
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé: Plastic pollution in the aquatic environment has been assessed for many years by ocean waste collection expeditions around the globe or by river sampling. While the total amount of plastic produced worldwide is well documented, the amount of plastic found in the ocean, the distribution of particles on its surface and its evolution over time are still the subject of much debate. In this article, we propose a general fragmentation model, postulating the existence of a critical size below which particle fragmentation becomes extremely unlikely. In the frame of this model, an abundance peak appears for sizes around 1mm, in agreement with real environmental data. Using, in addition, a realistic exponential waste feed to the ocean, we discuss the relative impact of fragmentation and feed rates, and the temporal evolution of microplastics (MP) distribution. New conclusions on the temporal trend of MP pollution are drawn.
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