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Author Correction: Accumulation, transformation and transport of microplastics in estuarine fronts
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Accumulation, transformation and transport of microplastics in estuarine fronts
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Estuarine fronts — dynamic boundary zones where river and ocean waters meet — act as convergence points that concentrate microplastics while also accelerating their fragmentation through turbulence, sediment interactions, and biological processes. Targeting these frontal hotspots for monitoring and remediation efforts could significantly improve our ability to intercept plastic pollution before it disperses into the open ocean.
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Researchers used a validated Delft3D hydrodynamic model coupled with Lagrangian particle tracking to show that axial convergent fronts in the Conwy estuary trap microplastics as an additional retention mechanism, but that high river-flow events disrupt these fronts and flush particles offshore—highlighting that estuarine microplastic fate depends on dynamic interplay between tidal and riverine forcing.
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