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Papers
20 resultsShowing papers similar to Mechanistic insights into the co-transport of microplastic degradation products in saturated porous media: The key role of microplastics-derived DOM
ClearTransport of degradable/nondegradable and aged microplastics in porous media: Effects of physicochemical factors
Researchers compared the transport of degradable (PLA) and nondegradable (PVC) microplastics through porous media, finding that degradable microplastics were more easily retained due to greater surface roughness and hydrophilicity, while aging from UV exposure further increased retention of both types.
Transport and deposition of microplastic particles in saturated porous media: Co-effects of clay particles and natural organic matter
Researchers performed column experiments to study how clay particles and natural organic matter affect microplastic transport through saturated porous media, finding that both colloids reduced MP mobility through heteroaggregation and that their combined presence produced the greatest reduction in transport.
Key factors controlling transport of micro- and nanoplastic in porous media and its effect on coexisting pollutants
Researchers reviewed the key factors that control how micro- and nanoplastics move through porous media such as soil and sediment, and how they affect the transport of co-occurring pollutants. They found that microplastics can either facilitate or inhibit the movement of other contaminants depending on particle properties and environmental conditions. The review emphasizes the need to better understand these co-transport dynamics for predicting the environmental fate of plastic pollution.
Nanoplastics as carriers of organic pollutants in seawater-saturated porous media: a quantitative comparison of transport pathways
Researchers quantitatively compared transport pathways of non-polar organic pollutants carried by nanoplastics through seawater-saturated porous media, demonstrating that the carrier effect of nanoplastics is the primary mechanism inhibiting pollutant migration and enabling their co-transport in coastal and marine subsurface environments.
Behaviour and transport of microplastics under saturated flow conditions in sediments and soils
Researchers investigated the behaviour and transport of microplastics under saturated flow conditions in sediments and soils, examining how particle properties influence movement through porous media. The study aimed to improve understanding of subsurface microplastic fate and transport relevant to both soil and groundwater contamination.
Behaviour and transport of microplastics under saturated flow conditions in sediments and soils
Researchers investigated the behavior and transport of microplastics under saturated flow conditions in sediments and soils, examining how physical and chemical properties of microplastic particles influence their mobility through porous geological media. The study addressed knowledge gaps in understanding subsurface microplastic transport relevant to groundwater contamination and the fate of microplastics deposited in terrestrial environments.
Cotransport of different electrically charged microplastics with PFOA in saturated porous media
Researchers examined how differently charged microplastics co-transport with PFOA through saturated porous media, finding that surface charge significantly influences both MP mobility and PFOA transport behavior, with implications for groundwater contamination.
Interaction of Dissolved Organic Matters and Microplastics Regulates the Transport of Microplastics in Saturated Porous Media
Researchers studied how different types of dissolved organic matter affect the transport of polystyrene microplastics through saturated porous media. The study found that humic acid, bovine serum albumin, and sodium alginate all promoted microplastic mobility, with humic acid having the strongest effect due to electrostatic repulsion and steric hindrance mechanisms.
Cotransport of 6PPD-Q and pristine/aged microplastics in porous media: An insight based on transport forms and mechanisms
Researchers investigated the cotransport of tire-derived chemical 6PPD-Q with pristine and aged microplastics through porous media. The study found that pristine microplastics adsorbed more 6PPD-Q than aged ones due to hydrophobic interactions, and that microplastics can facilitate the transport of this toxic tire rubber compound through soil and groundwater systems.
Transport of different microplastics in porous media: Effect of the adhesion of surfactants on microplastics
Researchers investigated how surfactant adhesion on different microplastic surfaces affects their transport through porous media, finding that surfactant interactions vary with microplastic type and significantly alter their mobility in subsurface environments.
Retention and remobilization of aged polystyrene (PS) microplastics in a porous medium under wet-dry cycling
Researchers examined how photoaging affects the retention and remobilization of polystyrene microplastics in unsaturated porous media (sea sand) under multiple wet-dry cycling conditions, quantifying how aging-induced physicochemical changes alter MP transport dynamics in unsaturated soil zones.
Fate and transport of nanoplastics in complex natural aquifer media: Effect of particle size and surface functionalization
Researchers used batch and column experiments in a natural sandy aquifer to show that nanoplastic transport is governed primarily by organic matter coatings rather than particle size or surface chemistry alone, with suspended organic matter increasing mobility while dissolved organic matter reduces it — findings that improve predictions of nanoplastic contamination in agricultural groundwater systems.
Transport and retention mechanism of microplastics in saturated porous media: Dominance of layer sequence and modulation by solution chemistry
Researchers found that the layered sequence of sand structures in saturated porous media dominates microplastic transport and retention patterns, with coarse-to-fine layering trapping more particles than fine-to-coarse sequences, and solution chemistry further modulating these physical effects.
Nanoplastics dominate the cotransport of small-scale plastics in seawater-saturated porous media
Researchers found that nanoplastics dominated cotransport behavior when mixed with submicro- and microplastics in seawater-saturated sandy porous media, with particle-particle interactions significantly altering transport distances compared to single-component systems.
UV aging induces colloidal-like behavior in microplastics, mediating contaminant fluxes across interfaces
Researchers showed that UV aging and mechanical stress transform polyethylene microplastics into reactive porous particles with colloidal behavior, developing surface oxidation, increased roughness, and trace metal accumulation — changes that alter how they transport contaminants across water-sediment interfaces.
Eco-Corona Dictates Mobility of Nanoplastics in Saturated Porous Media: The Critical Role of Preferential Binding of Macromolecules
The eco-corona that forms on nanoplastic surfaces through interaction with humic substances and extracellular polymeric substances (EPS) was found to critically determine nanoplastic mobility through saturated porous media. Humic-coated nanoplastics showed greater mobility than EPS-coated ones, suggesting natural organic matter composition governs nanoplastic transport in groundwater systems.
Retention and transport behavior of microplastic particles in water-saturated porous media
Researchers investigated microplastic transport in water-saturated porous media using polystyrene microspheres, finding that particle size primarily determined retention behavior, with 50 nm particles showing high mobility while 500 nm particles exhibited greater attachment and slower migration.
Chemical and photo-initiated aging enhances transport risk of microplastics in saturated soils: Key factors, mechanisms, and modeling
Researchers aged polystyrene microplastics using three oxidation methods and then studied their transport through saturated soil columns, finding that aging significantly increased surface hydrophilicity and mobility, with UV-activated persulfate oxidation producing the most mobile particles.
Influence of polymer age and soil aggregation on microplastic transport in soil erosion events
Researchers compared the transport rates of pristine and aged polystyrene microplastics during simulated rainfall events and quantified their incorporation into soil aggregates across multiple wet-dry cycles, providing the first empirical data on how surface roughness and hydrophobicity changes from weathering affect MP mobility in soil erosion.
Effect of Agricultural Organic Inputs on Nanoplastics Transport in Saturated Goethite-Coated Porous Media: Particle Size Selectivity and Role of Dissolved Organic Matter
Researchers examined how dissolved organic matter from agricultural inputs like biochar, wheat straw, and swine manure affects nanoplastic transport through goethite-coated porous media, finding that DOM type and nanoparticle size selectively influence mobility.