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61,005 resultsShowing papers similar to Adsorption of microplastic-derived organic matter onto minerals
ClearInteractions of microplastics, dissolved organic matter, and coexisting pollutants: Mechanisms, environmental implications, and knowledge gaps
This review examines the three-way interactions between microplastics, dissolved organic matter, and coexisting pollutants, synthesizing how microplastic-DOM adsorption influences contaminant behavior and fate in the environment. The authors identify the dual roles of environmental DOM and microplastic-derived DOM in regulating pollutant adsorption, mobility, and toxicity as a critical knowledge gap.
Characterization of the Differences in Dissolved Organic Matter (DOM) Adsorbed on Five Kinds of Microplastics Using Multiple Methods
Researchers developed an optimized method for extracting dissolved organic matter directly from microplastics collected across five different environmental settings. They found that the type of microplastic, its shape, and the environment it was collected from all significantly influenced how much organic matter was adsorbed, with porous extruded polyethylene showing the highest enrichment. The study provides new analytical approaches for characterizing how microplastics interact with organic matter in aquatic and sediment environments.
Diverse Impactsof Microplastic-derived DissolvedOrganic Matter at Environmentally Relevant Concentrations on SoilDissolved Organic Matter Transformation
Researchers examined how dissolved organic matter derived from agricultural microplastic mulches affects soil DOM transformation in yellow and black soils at environmentally relevant concentrations. They found that microplastic-derived DOM altered soil DOM dynamics in ways that could affect nutrient cycling and soil ecosystem function even at low, realistic exposure levels.
The implications of water extractable organic matter (WEOM) on the sorption of typical parent, alkyl and N/O/S-containing polycyclic aromatic hydrocarbons (PAHs) by microplastics
This study explored how dissolved organic matter in water affects the ability of microplastics to adsorb persistent organic pollutants like pesticides, finding that organic matter significantly influences microplastics' role as chemical carriers. The results have implications for understanding how microplastics transfer toxic chemicals through aquatic ecosystems.
Dissolved organic matter leached from microplastic (MPs-DOM) divergently alters pyrene adsorption in soil
Dissolved organic matter leached from microplastics (MPs-DOM) was shown to alter microbial community structure and chemical cycling in water. This suggests that even without direct particle ingestion, the chemical leachates from plastics can reshape aquatic ecosystems.
Diverse Impacts of Microplastic-derived Dissolved Organic Matter at Environmentally Relevant Concentrations on Soil Dissolved Organic Matter Transformation
Researchers examined how dissolved organic matter leached from biodegradable and conventional agricultural mulch microplastics affects soil chemistry at environmentally realistic concentrations. They found that UV-exposed microplastic leachates were more bioavailable and caused greater changes to soil organic matter than those produced in dark conditions. The study suggests that even at low concentrations, microplastic-derived compounds can meaningfully alter soil carbon dynamics, with effects varying by soil type.
Occurrence, adsorption and transport mechanism of microplastics in soil
This review synthesizes research on microplastic occurrence, adsorption behavior, and transport mechanisms in soil environments, covering global distribution patterns, sources including agricultural plastic film and sewage sludge, and the adsorption of co-occurring organic pollutants and heavy metals through mechanisms such as pore filling, van der Waals forces, electrostatic interactions, and complexation.
Effects of Microplastics and Organic Fertilizer Regulation on Soil Dissolved Organic Matter Evolution
This study examined how microplastic addition to soil affects dissolved organic matter (DOM) evolution, focusing on the interactions between microplastics as carbon sources and organic fertilizer. Microplastics altered DOM composition and quantity, with effects on soil carbon cycling that varied by plastic type and organic fertilizer combination, suggesting complex interactions between plastic pollution and soil amendment practices.
Environmental behavior and mechanistic interactions of biochar-derived dissolved organic matter with microplastics
This review examines how dissolved organic matter released from aging biochar interacts with microplastics in soil and water environments. Researchers found that biochar-derived organic matter can alter the surface properties, mobility, and toxicity of microplastic particles through mechanisms like adsorption and coating. The study highlights these interactions as an important but underappreciated factor in understanding the environmental fate of microplastics.
Characteristics and Driving Mechanism of Soil Organic Carbon Content in Farmland of Beijing Plain: Implication for the Fate of Engineered Polymers in Soil
This study examined how soil organic matter affects the transport of ions and particles in agricultural soils, relevant to understanding how microplastics interact with soil chemistry. Soil organic carbon content significantly influenced the mobility of contaminants through soil systems.
Microplastic-derived dissolved organic matter and its biogeochemical behaviors in aquatic environments: A review
This review examines how microplastics release dissolved organic matter (MP-DOM) as they break down in water, and how these released chemicals affect water ecosystems. MP-DOM can interact with other pollutants and alter carbon cycling in natural waters, with the type and amount varying based on plastic composition and weathering conditions. Understanding what microplastics release into water as they degrade is important because these dissolved chemicals may have their own toxic effects on aquatic life and water quality.
Interplay between microplastics and natural organic matter in association with environmental processes
This review explores how microplastics interact with natural organic matter—the dissolved and particulate carbon that permeates soils and waterways—and how these interactions alter microplastic transport, surface chemistry, and biological availability. Because natural organic matter coats microplastics and changes their behavior, ignoring this interplay leads to underestimates of how far and how dangerously microplastics spread through ecosystems.
Spatiotemporal heterogeneous effects of microplastics input on soil dissolved organic matter (DOM) under field conditions
Researchers conducted a long-term field experiment and found that microplastic inputs have spatiotemporally heterogeneous effects on soil dissolved organic matter (DOM), with implications for soil carbon dynamics under increasing terrestrial plastic contamination.
Process analysis of microplastic aging during the photochemical oxidation process and its effect on the adsorption behavior of dissolved organic matter
Accelerated UV/persulfate and UV/chlorine oxidation experiments showed that both processes aged microplastics in distinct ways — altering surface chemistry and morphology — which in turn changed how the MPs adsorb dissolved organic matter (DOM) from water. Because aged MPs in real environments bind organic contaminants differently than pristine plastics, these findings are essential for predicting the long-range transport and ecological risk of weathered microplastics in natural water systems.
Interactions between Microplastics and Dissolved Organic Matter in the Fresh Water Environment
This review explores how microplastics interact with dissolved organic matter (DOM) — the complex mixture of carbon compounds found in rivers and lakes — and what that means for freshwater ecosystems. Microplastics readily bind to DOM, altering its distribution in sediments and affecting the microbial communities that depend on it for food and energy. DOM can also change how far microplastics travel and how available they are to aquatic organisms. The interplay between these two classes of contaminant complicates efforts to predict microplastic behavior in the environment.
Phototransformation of microplastic derived dissolved organic matter reduces its adsorption capacity on ferrihydrite: Effects of additive types
Researchers studied how sunlight-driven phototransformation of dissolved organic matter released by microplastics affects its ability to bind to iron minerals in sediments. The study found that phototransformation significantly reduced the adsorption capacity of microplastic-derived organic matter on ferrihydrite, with the type of plastic additive playing a key role in determining the extent of this change.
Microplastics InfluenceDissolved Organic Matter TransformationMediated by Microbiomes in Soil Aggregates
A 450-day incubation study found that microplastics altered dissolved organic matter (DOM) transformation in soil aggregates by disrupting microbiome composition and activity, with effects differing between macro- and micro-aggregate fractions.
Microplastics and organic contaminants: Investigation of the sorption process on different polymer types
Researchers investigated sorption of organic contaminants onto microplastics collected from environmental samples, finding that real-world MPs had different sorption capacities than laboratory-prepared particles due to surface aging, biofouling, and co-sorption of natural organic matter.
Interactions of microplastics and soil pollutants in soil-plant systems
This review synthesized literature on microplastic interactions with organic pollutants and heavy metals in the soil-plant system, covering sorption mechanisms, distribution characteristics, and transfer to crops. Microplastics were found to both adsorb and desorb contaminants depending on environmental conditions, acting as both concentrators and dispersal agents for soil pollutants.
Impact of Minerals (Ferrihydrite and Goethite) and Their Organo-Mineral Complexes on Fate and Transport of Nanoplastics in the Riverine and Terrestrial Environments
Researchers studied how common iron minerals and their organic matter complexes affect the movement and fate of nanoplastics in river and soil environments. The study found that pure minerals had higher sorption capacity for nanoplastics than their organo-mineral counterparts, and goethite-based systems caused greater aggregation and retention of nanoplastics, suggesting that soil mineral composition plays an important role in nanoplastic transport.
Adsorption Behavior and Interaction of Micro-Nanoplastics in Soils and Aquatic Environment
This review examined how micro- and nanoplastics adsorb environmental pollutants in soil and aquatic environments, acting as vectors that transfer and enhance the bioavailability of contaminants. Aging and weathering processes that alter plastic surface properties were identified as key factors influencing adsorption capacity and pollutant interactions.
Molecular transformation and photochemical reactivity of microplastic-derived dissolved organic matter on goethite: Implications for persistence and reactive oxygen species dynamics
Researchers investigated how microplastic-derived dissolved organic matter interacts with the mineral goethite and how this affects its photochemical reactivity. They found that different plastic types produced distinct chemical behaviors: polystyrene-derived matter underwent sulfonation that enhanced reactive oxygen species formation, while polyethylene-derived matter remained relatively inert. The study suggests that microplastic-derived organic matter persists differently in soil depending on its polymer origin and mineral interactions.
Response of soil dissolved organic matter to microplastic addition in Chinese loess soil
Researchers added microplastics to loess soil at two concentrations and tracked dissolved organic matter over 30 days, finding that even moderate additions altered the rate of organic carbon, nitrogen, and phosphorus release, stimulated soil enzyme activity, and promoted accumulation of high-molecular-weight humic compounds — suggesting microplastic pollution reshapes soil nutrient cycling.
Adsorption of dissolved organic matter (DOM) on polystyrene microplastics in aquatic environments: Kinetic, isotherm and site energy distribution analysis
Polystyrene microplastics adsorbed both humic and fulvic acids from water via hydrophobic and pi-pi interactions, with humic acid showing stronger binding due to higher molecular energy sites. The results indicate that dissolved organic matter in natural waters will coat microplastic surfaces and alter their environmental behavior.