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61,005 resultsShowing papers similar to Numerical modelling of microplastics transport and accumulation throughout Portuguese coast
ClearNumerical Modelling of Plastic Debris Transport and Accumulation throughout Portuguese Coast
Researchers applied numerical modelling to simulate the transport and accumulation of plastic debris along the Portuguese coast, assessing how ocean currents drive microplastic dispersal and deposition patterns in this Atlantic coastal region. The study contributes spatial predictions of plastic accumulation hotspots to inform monitoring and management strategies.
Marine Litter on the Coast of the Algarve: Main Sources and Distribution Using a Modeling Approach
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.
Pathways and Hot Spots of Floating and Submerged Microplastics in Atlantic Iberian Marine Waters: A Modelling Approach
Researchers combined a global ocean reanalysis model with a Lagrangian particle-tracking model to simulate the transport pathways and accumulation zones of both floating and submerged microplastics originating from southwestern Iberian coastal waters. The modelling approach identified key hotspots and transport corridors for microplastic pollution in Atlantic Iberian marine waters.
The Plastic Pathfinder: A Macroplastic Transport and Fate Model for Terrestrial Environments
Researchers introduced the Plastic Pathfinder, a computer model that simulates how plastic waste moves across land through wind, rain, and river systems before reaching the ocean. The model helps identify key transport pathways and accumulation hotspots, which is critical information for targeting plastic pollution interventions.
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.
Modeling drift and fate of microplastics in the Baltic Sea
Researchers developed a hydrodynamic model to track the drift and accumulation of microplastics in the Baltic Sea, linking coastal emission sources to offshore accumulation zones and identifying key oceanographic processes that govern the fate of land-derived plastic pollution.
Modeling transport of microplastics in enclosed coastal waters: A case study in the Fethiye Inner Bay
A numerical model was used to simulate how microplastic particles move through the Fethiye Inner Bay in Turkey, identifying coastal areas where plastics are likely to accumulate. Such transport models are essential for predicting where marine protected areas and cleanup efforts will be most effective.
Mathematical modelling and simulations for microplastic environmental research: a systematic review
This systematic review summarizes how mathematical models and computer simulations are being used to study microplastic pollution in the environment. These modeling tools help scientists predict where microplastics travel, how they accumulate, and where human exposure is most likely, which is crucial for developing effective strategies to protect public health.
Validation of a Lagrangian model for large-scale macroplastic tracer transport using mussel-peg in NW Spain (Ría de Arousa)
Researchers validated a Lagrangian computational model for tracking macroplastic transport in coastal waters by comparing simulated accumulation patterns of mussel-pegs with beach monitoring data in northwestern Spain's Ria de Arousa.
Microplastics on the Portuguese coast
Researchers analysed marine litter across 11 Portuguese beaches over two years and found that 99% of all collected items were plastic, with 68% classified as microplastics under 5 mm and resin pellets comprising 79% of microplastics near industrial areas. Higher concentrations were observed in winter and autumn, near industrial zones and ports, suggesting a predominantly land-based origin.
Influence of estuarine physical processes in the transport of microplastics: a modelling study in the Gironde estuary
Researchers developed a hydrodynamic model to investigate how estuarine physical processes in the Gironde estuary influence the transport and distribution of microplastics, examining the role of tidal currents, salinity gradients, and fluvial discharge on particle fate. The modelling study provides insight into the mechanisms controlling microplastic accumulation and export in estuarine environments.
Mersin Körfezinde Mikroplastik Taşınımının Sayısal Modellemesi
Researchers used numerical modeling to simulate the transport of microplastics in the coastal waters of Mersin Bay in the eastern Mediterranean. The models revealed how irregular bathymetry, winds, and water currents influence where microplastics accumulate in this region, which is important for predicting pollution hotspots.
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.
A 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.
Using hydrodynamic models to understand the impacts and risks of plastic pollution
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.
Spatial distribution of microplastics in the Gulf of Cadiz as a function of their density: A Lagrangian modelling approach
Researchers coupled a Lagrangian transport model to a high-resolution hydrodynamic model to analyze microplastic distribution in the Gulf of Cadiz, finding that low-density plastics accumulate near estuary sources while high-density particles sink rapidly, with the Guadalquivir and Guadiana estuaries as the dominant input pathways.
Numerical Study of Microplastic Dispersal in Simulated Coastal Waters Using CFD Approach
Researchers used CFD numerical simulations to model microplastic dispersal in simulated coastal waters, investigating how particle type, size, shape, flow velocity, and temperature affect the transport and distribution patterns of PET, PU, and polypropylene microplastics.
Quantifying the influence of size, shape, and density of microplastics on their transport modes: A modeling approach
Researchers developed a computer model that predicts how microplastics of different sizes, shapes, and densities move through ocean water. The model accurately simulates whether particles float on the surface, stay suspended in the water column, or settle to the bottom. Understanding how microplastics travel through marine environments is important for predicting where contamination accumulates and which seafood sources are most likely to be affected.
Microplastics in the Mediterranean: Variability From Observations and Model Analysis
Researchers combined field sampling across four Mediterranean coastal areas with hydrodynamic and particle drift modeling to characterize microplastic abundance, size, and polymer type variability, finding that wastewater and river inputs drive spatial patterns of surface MP distribution.
Predicting the Dispersal and Accumulation of Microplastic Pellets Within the Estuarine and Coastal Waters of South-Eastern Brazil Using Integrated Rainfall Data and Lagrangian Particle Tracking Models
This study used particle tracking models combined with rainfall data to predict how plastic pellets and microplastics move and accumulate in estuarine and coastal waters of southeastern Brazil after entering from industrial and river sources. The modeling approach revealed that storm events pulse high concentrations of microplastics into coastal areas, creating temporary hotspots of contamination.
Numerical modeling of microplastic interaction with fine sediment under estuarine conditions
This study developed a numerical model to simulate how microplastics interact with fine sediment particles under estuary conditions. Researchers found that interactions with suspended sediment significantly influence where microplastics travel and accumulate in coastal waterways. The model provides a new tool for predicting microplastic transport patterns and identifying pollution hotspots in estuarine environments.
Numerical Modelling Techniques for Marine Debris : A Systematic Literature Review
This systematic review surveys numerical modeling approaches used to track the fate and transport of marine plastic debris, covering particle tracking models, hydrodynamic simulations, and bibliometric trends. Understanding how plastic moves through ocean systems is critical for identifying pollution hotspots and designing effective cleanup or prevention strategies.
A Methodology for the Estimation of Microplastic Concentration in Relation to the Meteorological Forcing and WWTPs Effluents in Urban Coastal Areas
Researchers developed a hydrodynamic modeling approach to estimate how microplastics from wastewater treatment plant effluents are distributed along an urban coastline in Greece, accounting for tides and weather. The methodology offers a way to predict microplastic hotspots in coastal waters and could inform better management of treatment plant discharges.
Trajectory of microplastic particles with 2-dimensional hydrodynamic modelling approach at Pekalongan waters, Central Java, Indonesia
Researchers used two-dimensional hydrodynamic modeling to track how microplastic particles move through the waters near Pekalongan, Central Java, Indonesia. They found that tidal currents and seasonal monsoon patterns significantly influence microplastic transport and accumulation near fishing grounds. The study provides a tool for predicting microplastic hotspots that could help guide marine debris management in the region.