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61,005 resultsShowing papers similar to Destination of floating plastic debris released from ten major rivers around the Korean Peninsula
ClearA particle tracking model approach to determine the dispersal of riverine plastic debris released into the Indian Ocean
Researchers developed a particle tracking model to simulate the dispersal of riverine plastic debris released into the Indian Ocean from surrounding landmasses. The study found that plastic accumulation on beaches peaked during monsoon seasons, with ocean currents, wind, and wave action driving distinct transport patterns, providing valuable data for identifying high-risk coastal areas and informing cleanup strategies.
A numerical model of microplastic erosion, transport, and deposition for fluvial systems
Researchers developed a numerical model of microplastic erosion, transport, and deposition in river systems, finding that rivers act as temporary sinks trapping significant fractions of MPs before they reach the ocean, with implications for estimating marine MP loading from terrestrial sources.
Modeling river and urban related microplastic pollution off the southern United States
Researchers used a Lagrangian particle-tracking model coupled with a high-resolution ocean circulation model to simulate the short-term transport and distribution of microplastics entering the Gulf of Mexico from rivers and urban sources along the southern United States coast.
From source to sink: part 1—characterization and Lagrangian tracking of riverine microplastics in the Mediterranean Basin
Researchers characterized riverine microplastics from source to coastal sink, using Lagrangian tracking to trace the transport of particles from inland rivers to coastal deposition zones and identifying key retention points in the system.
A Regional Lagrangian Model for Assessing the Dispersion of Floating Macroplastics from Different Source Types over the Iberian Peninsula in the North Atlantic Ocean
Researchers used a validated Lagrangian model to track floating macroplastics entering the North Atlantic from rivers, land-based sources, and maritime traffic along Spain's Atlantic coast, finding significant plastic concentrations near the coastline and at medium distances over a seven-year simulation period.
A Lagrangian Model for Microplastics Transport in Rivers
Researchers developed a Lagrangian computational model to simulate how microplastics are transported through river systems, accounting for particle buoyancy, turbulence, and settling behavior. The model provides a tool for predicting microplastic fate and accumulation in freshwater environments.
A Lagrangian model for microplastics transport in SERGHEI
Researchers implemented a Lagrangian particle tracking model for microplastic transport in the SERGHEI river flow simulation framework to predict plastic movement and fate in river systems. The model successfully reproduced field observations of microplastic distribution in test rivers and is applicable for assessing plastic pollution transport and identifying accumulation zones.
Fate of river-derived microplastics from the South China Sea: Sources to surrounding seas, shores, and abysses
Researchers used Lagrangian particle tracking numerical simulations to model the transport and dispersal of river-derived microplastics from the Pearl, Mekong, and Pasig rivers in the South China Sea, tracking buoyant and sinking MP types to map their fate across surface waters, surrounding seas, coastlines, and deep abyssal zones.
Developing Realistic Models for Assessing Marine Plastic Pollution in Semi-Enclosed Seas
Researchers developed realistic modeling approaches for assessing marine plastic pollution in semi-enclosed seas, accounting for plastic transport from land-based sources via rivers and inland pathways to better predict accumulation patterns.
Marine neustonic microplastics around the southeastern coast of Korea
Researchers surveyed microplastic debris floating in coastal waters near the mouth of the Nakdong River in South Korea before and after the rainy season, finding that rainfall dramatically increased microplastic concentrations. The study identified rivers as major conduits for land-based plastic to reach the marine neustonic zone.
Macroplastic fate and transport in an Amazonian Estuarine System: A Lagrangian Modelling Approach
Scientists used computer models to track how large plastic waste travels from the city of Belém, Brazil through rivers and waterways to the ocean. They found that plastic pollution gets stuck in certain areas during low water periods but moves quickly to the ocean during high water periods, creating pollution hotspots near the city. This research helps identify where plastic waste accumulates so communities can better target cleanup efforts and prevent this pollution from reaching the ocean and potentially entering our food chain.
Modeling the fate of microplastics in the Sengkarang Estuary, Pekalongan City, Central Java, Indonesia
Researchers measured microplastic concentrations in water and sediment at the mouth of the Sengkarang River in Indonesia and built a hydrodynamic model to track how tidal currents, wind, and river flow distribute the particles. Microplastics were highest in coastal waters and mangrove sediments, with tides and currents driving horizontal transport and concentrating particles in biologically sensitive habitats. The modeling approach offers a practical framework for predicting where microplastics accumulate and informing pollution management in river-to-sea systems.
Identification of Microplastic Accumulation Zones in a Tidal River: A Case Study of the Fraser River, British Columbia, Canada
Researchers used a 3D hydrodynamic model coupled with a Lagrangian particle tracking model to simulate microplastic transport and identify accumulation zones in the tidal Fraser River in British Columbia. The modelling identified specific depositional hotspots linked to flow velocity gradients, providing a framework for targeted monitoring and remediation.
Simulation of seasonal transport of microplastics and influencing factors inthe China Seas based on the ROMS model
Researchers used the Regional Ocean Modeling System combined with the LTRANS Lagrangian transport model to simulate seasonal microplastic transport throughout the China Seas, finding that circulation patterns, river discharge, and particle properties drive marked seasonal variations in microplastic pathways and spatial distribution.
Macroplastic Debris Transfer in Rivers: A Travel Distance Approach
A travel-distance modeling approach was applied to macroplastic debris in rivers, finding that plastic transport is strongly episodic and controlled by flood events, with smaller and more buoyant items traveling farther, and riverine inputs to the ocean likely underestimated by sampling methods that miss high-flow transport pulses.
Trajectory, fate, and magnitude of continental microplastic loads to the inner shelf: A case study of the world's largest coastal shallow lagoon
Researchers modeled the continental-scale transport and eventual fate of microplastics, estimating how particles move from terrestrial sources through river systems to coastal and open ocean environments. The analysis highlights oceans as the ultimate sink for a large fraction of land-derived microplastics.
Three-Dimensional Dispersion of Neutral “Plastic” Particles in a Global Ocean Model
Researchers used Lagrangian particle tracking in a high-resolution global ocean model to simulate the three-dimensional fate of neutrally buoyant plastic particles released from rivers over 1991-2010. By the end of the simulation, less than 2% of particles remained at the surface, concentrated in subtropical gyres, while the majority sank — challenging the assumption that floating surface plastics represent the bulk of ocean plastic.
Limited role of discharge in global river plastic transport
A new modeling framework proposes that riverine plastic transport is driven primarily by plastic availability in the catchment rather than river discharge, challenging the assumption that high-flow events are the main driver of plastic export to the ocean.
Numerical simulation research of the transportation and distribution characteristics on sea surface of the microplastic released continuously for 12 years from China's coastal cities
Using ocean current modeling, this study simulated where microplastics released from Chinese coastal cities over 12 years actually end up. The majority (80%) wash back ashore or remain in nearby marginal seas, about 18% are carried into the Pacific via the Kuroshio Current, and a small fraction reaches Southeast Asia. The results show that proximity to source matters enormously for coastal microplastic accumulation and that China's coastal emissions create a regional, rather than purely global, pollution signature.
Trans-polar drift-pathways of riverine European microplastic
Researchers used Lagrangian particle simulations to model the transport of buoyant microplastics from northern European rivers through the trans-polar drift to the high Arctic. The study found widespread dispersal along the Eurasian continental shelf, across the North Pole, and back into the Nordic Seas, with accumulation zones identified over multi-year timescales. The findings reveal how riverine microplastics from Europe can reach remote Arctic regions through ocean current pathways.
A numerical model of microplastic transport for fluvial systems
Researchers developed a reduced-complexity numerical model of microplastic erosion, transport, and deposition in fluvial systems, applying it to the river Têt in France and finding that a large proportion of microplastics become entrained in river sediments before reaching the ocean.
Rivers as conduits of microplastic emission from wastewater treatment plants to the sea
Researchers developed a mechanistic model to simulate microplastic emissions from wastewater treatment plants (WWTPs) to the sea via riverine transport in China, coupling detailed WWTP removal efficiencies with river transport dynamics and finding that fibers in particular escape treatment in significant quantities.
River and Urban-Related Microplastic Pollution in the Gulf of America: A Modeling Study
Researchers used a Lagrangian particle-tracking model coupled with a high-resolution 1 km three-dimensional regional ocean model to investigate microplastic pollution dynamics in the Gulf of Mexico, focusing on inputs from the Mississippi-Atchafalaya River system and coastal wastewater treatment plant discharges. The modelling study mapped MP transport pathways and accumulation zones in a biologically critical marine environment under multiple emission scenarios.
Transportation of microplastic during high-flow and low-flow seasons in southeastern Black Sea: A modelling approach
Researchers modeled the transportation and accumulation of floating microplastic particles released from the Degirmendere River into the southeastern Black Sea using the ECOMSED Lagrangian model, finding concentrations of 168-1412 particles/m3 during high-flow and 0-843 particles/m3 during low-flow seasons with particles consistently accumulating along coastal waters.