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61,005 resultsShowing papers similar to Sorption of pesticides onto polyethylene microplastics in different aqueous matrices
ClearSorption and dissipation of current-use pesticides and personal-care products on high-density polyethylene microplastics in seawater
Researchers characterized how three pesticides and three personal care products sorb onto high-density polyethylene microplastics in seawater. They found that more hydrophobic compounds accumulated more readily on the plastic, and that significant desorption (over 30%) occurred within 24 hours, especially at higher contaminant concentrations. The study confirms that microplastics can act as both carriers and releasers of chemical pollutants in marine environments.
Adsorption behavior and mechanism of five pesticides on microplastics from agricultural polyethylene films
Researchers studied how five common pesticides adsorb onto polyethylene microplastics derived from agricultural soil films. They found that all five pesticides bind to microplastic surfaces, with the process driven by both physical and chemical interactions. The study suggests that microplastics in agricultural soils could act as carriers for pesticide contamination, with adsorption capacity varying depending on the pesticide's chemical properties.
Adsorption behaviors of atrazine and imidacloprid on high temperature aged microplastics: Mechanism and influencing factors
Researchers investigated how aged polyethylene microplastics — the kind that have been weathered by UV light and heat in the environment — adsorb common agricultural pesticides, finding that microplastics can accumulate pesticides like atrazine and imidacloprid at high concentrations through hydrophobic (water-avoiding) interactions. This "Trojan horse" effect means microplastics can carry and potentially concentrate pesticides as they move through water environments.
Behavior and mechanism of atrazine adsorption on pristine and aged microplastics in the aquatic environment: Kinetic and thermodynamic studies
Researchers systematically explored how the pesticide atrazine adsorbs onto both pristine and aged microplastics in aquatic environments. The study found that aged microplastics had higher adsorption capacities than pristine ones, with the aging process and pH significantly affecting surface charge and adsorption behavior, suggesting that weathered microplastics may carry greater loads of chemical contaminants.
Impact of microalgal biomass and microplastics on the sorption behaviour of pesticides in soil: a comparative study
Researchers examined how microalgal biomass interacts with microplastics to influence pesticide sorption behavior, finding that algal exudates coating MP surfaces altered their affinity for pesticides and affected the overall fate of pesticide-MP complexes in water.
Insights into sorption and molecular transport of atrazine, testosterone, and progesterone onto polyamide microplastics in different aquatic matrices
This study measured the sorption of two hormones and the pesticide atrazine onto polyamide microplastics in different aquatic matrices including freshwater and seawater, finding that water composition significantly affected sorption kinetics and equilibrium, with implications for microplastic roles as contaminant carriers.
Review and analysis of atrazine adsorption on different microplastics in aqueous solution.
This review analyzed atrazine adsorption onto different microplastic types in aqueous solution, examining how varying environmental conditions and physicochemical properties of PE and other MP matrices govern the sorption and transport of this ubiquitous herbicide when MPs serve as contaminant vectors in aquatic systems.
Strong sorption of two fungicides onto biodegradable microplastics with emphasis on the negligible role of environmental factors
Researchers found strong sorption of two fungicides onto biodegradable microplastics, with partition coefficients largely unaffected by environmental variables such as pH, ionic strength, and temperature, suggesting that biodegradable plastic alternatives may still facilitate pesticide transport in agricultural and aquatic environments.
The carrier effect mechanism of butachlor in water by three typical microplastics
Researchers investigated the adsorption mechanisms of the herbicide butachlor (BUT) onto three types of microplastics — polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC) — under varying pH, salt ion concentration, and aging conditions in water. The study elucidated the carrier effect of microplastics in transporting this widely used agricultural chemical through aquatic environments.
Adsorption mechanism of two pesticides on polyethylene and polypropylene microplastics: DFT calculations and particle size effects
Researchers studied how two common pesticides, carbofuran and carbendazim, adsorb onto polyethylene and polypropylene microplastics using both experiments and computational chemistry. They found that the type and size of microplastic particles significantly influenced how much pesticide was absorbed, with smaller particles binding more chemicals per unit weight. The study reveals that microplastics in agricultural environments can act as carriers for pesticides, potentially increasing their transport into waterways.
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.
Sorption of organic compounds by microplastic
This German thesis studied how common microplastic polymers like polyethylene, polystyrene, and polyamide sorb and accumulate hydrophobic organic contaminants, investigating the mechanisms that make plastics effective carriers of pollutants. Understanding sorption behavior is key to assessing how microplastics transport toxic chemicals into marine food webs.
Mechanisms of Sorption of Pharmaceutical and Personal Care Products to Microplastics
This thesis investigated how pharmaceutical and personal care product chemicals sorb onto high-density polyethylene microplastic fragments, and how this affects the combined toxicity to aquatic organisms. Microplastics can carry drug compounds and personal care chemicals from wastewater into aquatic environments, concentrating pollutant exposure for marine organisms.
Adsorption behaviour and interaction of organic micropollutants with nano and microplastics – A review
This review analyzed the adsorption behavior of organic micropollutants — including pharmaceuticals, pesticides, and industrial chemicals — onto nano- and microplastics, finding that adsorption is governed by pollutant hydrophobicity, particle surface area, and aging state, and that microplastics can act as vectors delivering co-contaminants to aquatic organisms.
Adsorption of Pollutants on Microplastics in Freshwater
This book chapter examines adsorption of co-contaminants—including heavy metals, pesticides, and pharmaceuticals—onto microplastic surfaces in freshwater environments, reviewing how plastic particle characteristics determine their capacity to concentrate and transport associated pollutants.
Adsorption of fluoranthene and phenanthrene by virgin and weathered polyethylene microplastics in freshwaters
Researchers examined how virgin and weathered polyethylene microplastics adsorb fluoranthene and phenanthrene in freshwater, finding that weathering significantly increased adsorption capacity and that water chemistry influenced contaminant uptake.
Adsorption of pesticides and personal care products on pristine and weathered microplastics in the marine environment. Comparison between bio-based and conventional plastics
Researchers compared adsorption of two pesticides and six synthetic musks onto bio-based polyhydroxybutyrate (PHB) and conventional polyamide (PA6) microplastics under pristine and weathered conditions. Weathering increased adsorption capacity for both polymer types, and bio-based PHB adsorbed pollutants at comparable rates to conventional PA6, suggesting biodegradable plastics are not automatically safer as environmental vectors.
Surface functional group dependent enthalpic and entropic contributions to molecular adsorption on colloidal microplastics
This chemistry study measured how different organic molecules (charged and neutral) stick to the surface of various microplastic particles in water, finding that the plastic's surface chemistry strongly influences the strength and nature of these interactions. The work reveals that both electrostatic attraction and water structure at the plastic surface play a role in determining what contaminants microplastics can carry. This matters because microplastics act as "carriers" for other pollutants, and understanding the binding chemistry helps predict which toxins hitchhike with plastics into ecosystems and organisms.
Adsorption of three pesticides on polyethylene microplastics in aqueous solutions: Kinetics, isotherms, thermodynamics, and molecular dynamics simulation
Adsorption experiments showed that polyethylene microplastics bind three pesticides (imidacloprid, buprofezin, difenoconazole) in aqueous solution via physical mechanisms, with adsorption capacity following the order difenoconazole > buprofezin > imidacloprid based on hydrophobicity, and fitting Freundlich isotherm and pseudo-first-order kinetic models.
Environmental Effects on the Fate and Co-Transport of Pesticides and Microplastics in Soils Irrigated with Wastewater
This study examined how salinity, organic carbon, and temperature affect the interaction between microplastics and pesticides in wastewater-irrigated soils. Biodegradable microplastics showed different pesticide-binding behavior than conventional microplastics, with implications for how pesticide residues move through agricultural soils into crops and groundwater.
Sorption of selected pharmaceutical compounds on polyethylene microplastics: Roles of pH, aging, and competitive sorption
Researchers found that polyethylene microplastics adsorb pharmaceutical compounds including an antibiotic, a beta-blocker, and an antidepressant, with sorption capacity influenced by pH, aging of the plastic, and competition between compounds — raising concern about microplastics as carriers of pharmaceuticals in aquatic environments.
Prediction of organic compounds adsorbed by polyethylene and chlorinated polyethylene microplastics in freshwater using QSAR
Researchers used QSAR modeling to predict the adsorption behavior of 13 organic compounds onto polyethylene and chlorinated polyethylene microplastics under freshwater conditions, finding that most chemicals exhibited higher adsorption to chlorinated polyethylene than to standard polyethylene.
Effects of water chemistry on interaction between organic contaminants and microplastics and their passage in microfiltration membrane
This study examined how water chemistry affects the interactions between organic contaminants and microplastics in agricultural runoff, and how these interactions influence passage through microfiltration membranes. Results showed that water chemistry altered both contaminant-microplastic binding and membrane filtration behavior.
The role of microplastic aging on chlorpyrifos adsorption-desorption and microplastic bioconcentration
Researchers investigated how microplastic aging affects chlorpyrifos adsorption-desorption behavior, finding that aged microplastics had higher pesticide sorption capacity and bioconcentration potential, suggesting weathered MPs pose greater risks as pollutant carriers.