Effects of Microplastic-Sediment Interactions on Microplastics Dispersion in the Gironde Estuary: A Modelling Approach

Betty John Kaimathuruthy; Betty John Kaimathuruthy; Isabel Jalón‐Rojas; Damien Sous; Vania Ruiz Gonzalez; Vincent Marieu; Nicolas Huybrechts

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Effects of Microplastic-Sediment Interactions on Microplastics Dispersion in the Gironde Estuary: A Modelling Approach

SPIRE - Sciences Po Institutional REpository 2025

Betty John Kaimathuruthy, Betty John Kaimathuruthy, Isabel Jalón‐Rojas, Damien Sous, Vania Ruiz Gonzalez, Vincent Marieu, Nicolas Huybrechts

Summary

Researchers developed a hydrodynamic model to investigate how microplastic-sediment interactions influence the dispersion and transport of microplastics within the Gironde Estuary. The modeling approach demonstrated that sediment dynamics significantly affect microplastic fate, altering predicted spatial distributions compared to models that ignore particle-sediment interactions.