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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 is an additional data repository accompanying the same study on microplastic transport in riverbed sediments. The data is provided to support reproducibility and further analysis of microplastic fate in freshwater environments.
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.
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.
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.
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.
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.
A depth-resolved snapshot of microplastic abundances in riffle heads in a gravelbed river
Researchers took depth-resolved samples from gravel riverbed sediments to map how microplastics distribute vertically through streambeds. They found significant quantities at depth, suggesting that riverbeds act as long-term reservoirs of microplastic pollution rather than just transient transport pathways.
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.
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.
Evaluating factors influencing microplastic mobility in sediments through visualization and experiments
Researchers used micro-CT imaging to visualize three-dimensional transport pathways of microplastics through gravel and sand sediments relevant to riverbank filtration, finding that smaller sediment pore sizes restrict microplastic mobility and that particle properties such as shape, size, and polymer density influence infiltration depth.
Evaluating factors influencing microplastic mobility in sediments through visualization and experiments
Researchers used micro-CT imaging to visualize three-dimensional transport pathways of microplastics through gravel and sand sediments relevant to riverbank filtration, finding that smaller sediment pore sizes restrict microplastic mobility and that particle properties such as shape, size, and polymer density influence infiltration depth.
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.
Storm Response of Fluvial Sedimentary Microplastics
Researchers investigated how storm events affect microplastic concentrations in river sediments, finding that flood conditions remobilize stored particles and significantly increase microplastic loads in fluvial systems. The study identified key physical controls on microplastic storage and transport in river channels.
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.
Turbulence‐Driven Clogging of Hyporheic Zones by Fine Particle Filtration
This study is not directly about microplastics; it investigates how river turbulence drives fine particle exchange between surface water and the streambed (hyporheic zones), finding that turbulence significantly accelerates particle delivery and can clog the riverbed over time. This process is relevant to understanding how microplastics might be buried and retained in river sediments.
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.
Data from: In situ correlation between microplastic and suspended particulate matter concentrations in river-estuary systems support proxies for satellite-derived estimates of microplastic flux
This dataset entry provides raw measurement data from a study correlating microplastic concentrations with suspended particulate matter in river-estuary systems. The data supports developing satellite-based proxies for estimating microplastic flux in rivers and estuaries.
Microplastic distribution and their abundance along rivers are determined by land uses and sediment granulometry
Researchers studied two river watersheds and found that microplastics were widespread in both water and sediment, with concentrations in water rising alongside increased urban land use. Interestingly, microplastics trapped in sediment were more influenced by the grain size of the riverbed than by human activity. The findings suggest that both human factors and natural river characteristics work together to shape where microplastics end up in freshwater systems.
Particle tracking algorithm and additional data for "Optimized and Validated Settling Velocity Measurement for Small Microplastic Particles (10–400 µm)"
This dataset and code repository accompanies a study on measuring the settling velocity of small microplastic particles (10–400 µm) in water. The materials include image processing routines and particle tracking algorithms designed to improve measurement accuracy for tiny plastic fragments. Accurate settling data helps predict how microplastics distribute in water bodies.
Occurrence and transport of microplastics across the streambed interface during bank filtration
Researchers assessed microplastic occurrence and spatial distribution across surface water, riverbed sediments, and groundwater at two German lowland river sites -- the Teltow Canal and the Havel -- under bank filtration conditions, collecting monthly surface water and quarterly groundwater samples over one year alongside sediment freeze cores to 100 cm depth, analyzed by near-infrared spectroscopy.