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61,005 resultsShowing papers similar to Dataset accompanying the publication "Transport and retention of micro-Polystyrene in coarse riverbed sediments: Effects of flow velocity, particle and sediment sizes"
ClearDataset accompanying the publication "Transport and retention of micro-Polystyrene in coarse riverbed sediments: Effects of flow velocity, particle and sediment sizes"
This dataset accompanies a study on how flow velocity, particle size, and sediment grain size affect the transport and retention of polystyrene microplastics in riverbeds. The raw image files support research into how microplastics move through freshwater systems and accumulate in sediment.
Dataset accompanying the publication "Transport and retention of micro-Polystyrene in coarse riverbed sediments: Effects of flow velocity, particle and sediment sizes"
This repository contains raw image data from filter samples used in a study on microplastic transport in riverbed sediments. The dataset supports reproducible research on how polystyrene microplastics behave under different river flow conditions.
Transport and retention of micro-polystyrene in coarse riverbed sediments: effects of flow velocity, particle and sediment sizes
Researchers conducted column experiments to investigate how polystyrene microplastic fragments are transported and retained in coarse riverbed sediments under different flow conditions. They found that most particles were captured in the upper 15-20 centimeters of sediment, but smaller fragments between 100-500 micrometers could penetrate to depths of at least 50 centimeters. The study suggests that riverbeds can act as both temporary sinks and long-term retention sites for microplastics, slowing their transport from streams to oceans.
Data and code for the publication "Assessing the Behavior of Microplastics in Fluvial Systems: Infiltration and Retention Dynamics in Streambed Sediments" - Part 1(2)
This dataset supports research on how microplastics move through streambed sediments in experimental flume conditions, measuring infiltration and retention dynamics. Understanding microplastic trapping in riverbeds is important for predicting their long-term fate in freshwater ecosystems.
Data and code for the publication "Assessing the Behavior of Microplastics in Fluvial Systems: Infiltration and Retention Dynamics in Streambed Sediments" - Part 2(2)
This is part two of a dataset from flume experiments studying how microplastics infiltrate and are retained in streambed sediments. The data supports modeling of microplastic transport and deposition in river systems.
Data and code for the publication "Assessing the Behavior of Microplastics in Fluvial Systems: Infiltration and Retention Dynamics in Streambed Sediments" - Part 2(2)
This is a duplicate of part two of the dataset from flume experiments on microplastic infiltration and retention in streambed sediments. The data supports modeling of microplastic transport in river systems.
Dataset and code for the publication: "Mobility and Retention of Microplastic Fibers and Irregular Fragments in Fluvial Systems: An Experimental Flume Study"
This dataset contains experimental data from flume studies examining the mobility and retention of microplastic fibres and irregularly shaped fragments in fluvial systems, conducted at the University of Bayreuth. The dataset supports the publication by La Capra and colleagues and includes transport measurements, code, and supplementary information for reproducibility.
Dataset and code for the publication: "Mobility and Retention of Microplastic Fibers and Irregular Fragments in Fluvial Systems: An Experimental Flume Study"
This dataset contains experimental data from flume studies examining the mobility and retention of microplastic fibres and irregularly shaped fragments in fluvial systems, conducted at the University of Bayreuth. The dataset supports the publication by La Capra and colleagues and includes transport measurements, code, and supplementary information for reproducibility.
Data and code for the publication "Assessing the Behavior of Microplastics in Fluvial Systems: Infiltration and Retention Dynamics in Streambed Sediments" - Part 1(2)
This is a duplicate dataset entry for flume experiments studying microplastic infiltration and retention in streambed sediments. The data supports modeling of microplastic transport in river systems.
Microplastic transport in rivers and their hyporheic zone – combining modeling and experiment
Researchers combined computational fluid dynamics (CFD) simulations with flume experiments to investigate the transport and fate of small polystyrene microplastic particles (1, 3, and 10 micrometres) in a rippled sandy streambed, including exchange into the hyporheic zone. Using a novel fluorescent MP detection system, they quantified how particle size and hydrodynamic conditions govern microplastic retention and hyporheic exchange in riverbed sediments.
The effects of large roughness elements on the in-stream transport and retention of polystyrene microplastics
Laboratory flume experiments showed that large roughness elements like boulders in riverbeds significantly alter how polystyrene microplastics are transported and retained, with two distinct flow regimes determining whether particles travel quickly or get trapped. Understanding these river dynamics is essential for predicting where microplastics accumulate in freshwater systems and designing realistic environmental risk models.
The effects of streambed movement and particle size on microplastic deposition
Researchers conducted flume experiments using polypropylene fibers and polystyrene microspheres in sandy streambeds to examine how streambed motion and particle size influence microplastic deposition, finding that both factors significantly affect burial rates in riverine systems.
Exploring the influence of sediment motion on microplastic deposition in streambeds
This study systematically explored how sediment motion affects microplastic deposition in streambeds made of fine sediments, finding that sediment transport dynamics play a critical role in controlling where microplastics accumulate. The results improve understanding of microplastic fate in riverine systems.
Modelling the Fate of Microplastics in river bed sediments.
Researchers modeled microplastic transport, deposition, and burial in river bed sediments under varying hydrological conditions. River bed sediments were found to act as long-term reservoirs for microplastics, with periodic high-flow events temporarily resuspending and redistributing particles.
Additional data for "Settling Velocities of Small Microplastic Fragments and Fibers"
This data repository provides raw settling velocity measurements for small microplastic fragments and fibers, supporting a publication on their transport behavior in water. Settling velocity data is critical for modeling where microplastics deposit in rivers, lakes, and ocean sediments.
Experimental study on the motion characteristics and critical hydraulic parameters of microplastics in a freshwater environment
Researchers conducted hydraulic flume experiments and force analyses to determine critical flow velocity thresholds for microplastic initiation, transport, and resuspension in freshwater environments, finding that settling velocities ranged from 0.05 to 0.17 m/s and that higher density, rougher surfaces, and flake-like shapes all increased the critical flow velocity required for microplastic movement.
Microplastic deposition in streams under moving bedforms
Researchers conducted flume experiments to examine microplastic deposition in sandy streambeds under moving bedform conditions, finding that bedform migration and particle size both control whether microplastics are buried or remain in suspension, with implications for estimating MP residence times in river systems.
The effects of stream water velocity, streambed celerity, and particle properties on microplastic deposition in streams
Researchers conducted laboratory flume experiments to examine how stream water velocity, bedform movement, and microplastic particle properties (material type PET/PP/PA and fiber length 25-200 µm) influence the deposition dynamics of microplastics in sandy streambeds, finding that bedform movement and particle characteristics significantly affected deposition rates and sediment distribution patterns.
Longitudinal and Vertical Transport of Microplastic Within Sediment in Rivers and Transitional Water Environments
Researchers investigated the longitudinal and vertical transport of microplastics within sediments in rivers and transitional water environments, developing models to quantify how sediment presence affects microplastic mobility and their transport toward coastal areas.
Investigations on microplastic infiltration within natural riverbed sediments
Researchers used laboratory flume experiments to investigate how sediment grain size affects the infiltration of four types of microplastics (PET spheres, PET ellipsoids, polystyrene fragments, and polyamide fibers) into riverbed sediments. Sediment particle size, microplastic shape, and density were key factors controlling how deeply microplastics penetrate into the hyporheic zone.
Understanding how sediment movement affects microplastic deposition in sandy streambeds: A modeling study.
Researchers used a numerical model of flow and particle transport in moving streambed sediment to quantify how streambed motion affects microplastic deposition and accumulation, running simulations across streamwater velocities of 0.1-0.5 m/s and varying median grain sizes to examine MPs of all sizes and densities.
Modelling the Fate of Microplastics in river bed sediments.
Researchers modeled the fate of microplastics deposited in river bed sediments, examining how hydrological conditions influence their distribution, burial, and potential for downstream transport. The models revealed that river bed sediments act as significant long-term reservoirs for microplastic pollution.
Assessing the Behavior of Microplastics in Fluvial Systems: Infiltration and Retention Dynamics in Streambed Sediments
Scientists used laboratory river-bed simulations to study how microplastics move from surface water down into streambed sediments. Smaller particles (1 micrometer) penetrated deeper into the sediment than larger ones, and higher water flow pushed more particles downward. This research helps explain how microplastics accumulate in river beds, which serve as both drinking water sources and habitats for aquatic organisms.
Investigating Microplastic Resuspension in Environmental flows: Experimental and Numerical Approaches
Researchers used combined experimental and numerical approaches to investigate the resuspension of microplastics from sediment beds in riverine flows, finding that turbulence intensity during high-flow events plays a key role in detaching MP particles embedded in multi-density granular sediment beds.