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The Debris Distribution Model for Removal Planning of an Urbanized Estuarine Complex
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Researchers modeled and mapped debris stranding patterns on a Brazilian beach across different tidal and seasonal conditions, finding that buoyancy and tidal cycle were the dominant factors controlling where litter deposited. The model could help optimize beach litter removal programs by predicting accumulation zones ahead of cleanup operations.
Abstract We checked the spatial pattern of debris stranding at Praia de Santos (Brazil) in the first hour after the peak of high and low tide in summer and winter. We recorded and counted 20 types of debris (natural and anthropogenic) in 6 transects arranged in 3 zones along the beach (deposition, transport, and erosion). Canonical Correspondence Analysis (CCA) showed that buoyancy was an essential property in distinguishing debris stranding behaviours. The erosion zone, closer to the estuary showed that many mollusk shells, ropes and rocks, while plastics, styrofoam and fiber nylon were in the deposition zone. Throughout the estuary, we inspected the beach, identifying sections of origin and accumulation associated with the circulation system and currents. We propose the removal and recycling of debris from accumulation sites near highways and urban systems.
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Scientists used a regional ocean circulation model to estimate sources and distribution of marine litter along the Algarve coast of Portugal, finding that local sources combined with offshore currents drive accumulation on beaches. The modeling approach can help target cleanup and prevention efforts in coastal tourism zones.
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This paper used hydrodynamic computer models to simulate the transport and accumulation of plastic pollution in estuarine and coastal environments. The approach helps predict where marine litter concentrates based on currents and geography, which is useful for targeting cleanup efforts and informing coastal management policies.
Beach morphodynamics and its relationship with the deposition of plastic particles: A preliminary study in southeastern Brazil
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Researchers found that beach morphodynamic characteristics influence the deposition of plastic particles on beaches in São Paulo, Brazil, with 745 particles recovered — mostly styrofoam — and accumulation patterns correlating with beach profile dynamics.
Variação espacial da abundância de pellets plásticos na praia de Santos, São Paulo, Brasil
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Researchers mapped the spatial distribution of plastic pellets on Santos Beach in Brazil, collecting nearly 12,000 pellets during a summer sampling campaign in 2020. Pellet abundance varied along the beach longitudinal axis and across tidal zones, with the highest concentrations near the waterline, suggesting active transport by ocean currents.
Beaching model for buoyant marine debris in bore-driven swash
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Researchers developed a simplified model for buoyant marine debris transport in bore-driven swash zones, improving understanding of how debris beaches and providing a framework for incorporating beaching processes into coastal pollution models.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.