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20 resultsShowing papers similar to Interplay of compound pollutants with microplastics transported in saturated porous media: Effect of co-existing graphene oxide and tetracycline
ClearThe co-transport behavior of polyacrylonitrile microplastics and aniline compounds in porous media
Experiments examined how polyacrylonitrile microplastics move through soil alongside other contaminants, finding that co-transport interactions affected both microplastic mobility and the fate of associated pollutants. Understanding these dynamics is important for assessing the spread of microplastics and their cargo in terrestrial environments.
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.
Transport of polystyrene microplastics in bare and iron oxide-coated quartz sand: Effects of ionic strength, humic acid, and co-existing graphene oxide
Researchers investigated how graphene oxide nanoparticles and humic acid influence the transport of polystyrene microplastics through sand columns, comparing bare quartz sand with iron oxide-coated sand. They found that iron oxide-coated sand strongly retained microplastics regardless of other factors, while graphene oxide significantly promoted microplastic transport by increasing surface charge and creating steric barriers. The study suggests that the co-presence of nanomaterials and organic matter in the environment can significantly alter how microplastics move through soil and groundwater systems.
Facilitated transport of microplastics and nonylphenol in porous media with variations in physicochemical heterogeneity
Researchers found that when microplastics and the endocrine disruptor nonylphenol coexist, their mobility through soil is enhanced due to mutual association and competition for retention sites, increasing potential groundwater contamination risk.
Cotransport and deposition of colloidal polystyrene microplastic particles and tetracycline in porous media: The impact of ionic strength and cationic types
Researchers investigated the cotransport of polystyrene microplastic particles and tetracycline through saturated porous media under varying ionic strength and cation type conditions, finding that the presence of tetracycline slightly reduced microplastic mobility in potassium chloride solutions while calcium ions strongly promoted both microplastic and antibiotic deposition. The study highlights how antibiotic co-occurrence and water chemistry interact to influence the transport and fate of microplastics in groundwater systems.
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.
Effects of ionic strength, cation type and pH on the cotransport of microplastics with PFOA in saturated porous media
Researchers investigated how microplastics and the chemical contaminant PFOA interact when traveling together through saturated soil. The study found that microplastics generally inhibited PFOA transport through adsorption, while PFOA accelerated microplastic movement through electrostatic effects, demonstrating that co-contamination can alter the environmental fate of both pollutants.
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.
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.
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.
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.
Cotransport of naphthalene with polystyrene nanoplastics (PSNP) in saturated porous media: Effects of PSNP/naphthalene ratio and ionic strength
Researchers examined the cotransport of naphthalene with polystyrene nanoplastics in saturated sand columns and found that varying the nanoplastic-to-naphthalene ratio and ionic strength significantly influenced the mobility of both contaminants, confirming nanoplastics as effective carriers of hydrophobic organic pollutants in porous media.
Transport of functional group modified polystyrene nanoplastics in binary metal oxide saturated porous media
Researchers found that the surface functional groups of polystyrene nanoplastics significantly influenced their transport behavior through binary metal oxide porous media, with solution chemistry and the specific combination of metal oxides playing key roles in determining nanoplastic mobility in soil environments.
Transport of polyethylene and polypropylene microplastics under the action of agricultural chemicals: Role of pesticide adjuvants and neonicotinoid active ingredients
Column experiments showed that pesticide adjuvants (surfactants) and neonicotinoid active ingredients both influenced the transport of polyethylene and polypropylene microplastics through saturated porous media, with surfactants generally enhancing mobility.
Mechanistic insights into the co-transport of microplastic degradation products in saturated porous media: The key role of microplastics-derived DOM
Researchers investigated the co-transport of microplastic-derived dissolved organic matter (MP-DOM) and aged microplastics (AMPs) through saturated porous media under a range of environmentally relevant conditions. They found that as the degree of aging increased, changes in physicochemical characteristics of both AMPs and MP-DOM altered their transport behaviour, with MP-DOM playing a key role in the co-transport dynamics.
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.
Co-transport of negatively charged nanoparticles in saturated porous media: Impacts of hydrophobicity and surface O-functional groups
Researchers studied how graphene oxide (GO) and polystyrene nanoplastics co-transport through saturated soil, finding that in sodium-rich conditions GO can carry nanoplastics through the medium, while calcium ions suppress movement of both by bridging particles to sand grains — with more abundant surface oxygen groups on GO amplifying this effect.
Microplastics/nanoplastics in porous media: Key factors controlling their transport and retention behaviors
This review examines what controls how microplastics and nanoplastics move through soil and other porous materials like sand and sediment. Factors like particle size, shape, surface charge, water flow speed, and the presence of other pollutants all influence whether plastics stay in place or travel deeper into groundwater. Understanding these transport behaviors is important for assessing the risk of microplastics contaminating underground drinking water sources.
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.
The individual transport, cotransport and immobilization with solar pyrolysis biochar of microplastics and plasticizer in sandy soil
Researchers tracked the individual transport, co-transport, and immobilization of microplastics in porous media, finding that plastic particle behavior differs significantly depending on surface charge and pore structure interactions. The results improve predictions of where microplastics migrate and accumulate in soils and aquifers.