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61,005 resultsShowing papers similar to Atrazine sorption on biodegradable microplastics: Significance of microbial aging
ClearAging of biodegradable-mulch-derived microplastics reduces their sorption capacity of atrazine
UV aging of biodegradable PBAT and PBST microplastics reduced their sorption capacity for the herbicide atrazine, with partition coefficients declining for both aged polymers due to changes in surface area, hydrophobicity, polarity, and crystallinity.
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.
Effects of microplastics on the environmental behaviors of the herbicide atrazine in soil: Dissipation, adsorption, and bioconcentration
Researchers examined how the presence of microplastics in soil affects the behavior of the herbicide atrazine, including how quickly it breaks down and how much is absorbed by plants. They found that microplastics reduced the herbicide's half-life in soil, increased its adsorption to soil particles, and significantly boosted its uptake into plant tissues. The study suggests that microplastic contamination in agricultural soils could change how pesticides behave, potentially increasing crop contamination.
Aging characteristics of polylatic acid microplastics and their adsorption on hydrophilic organic pollutants: mechanistic investigations and theoretical calculations
Researchers characterized how polylactic acid microplastics undergo UV and thermal aging in aquatic environments, finding that aging altered surface chemistry, increased hydrophilicity, and enhanced adsorption of heavy metal pollutants—raising concerns about aged biodegradable plastics as carriers of co-contaminants.
Adsorption/desorption behavior of degradable polylactic acid microplastics on bisphenol A under different aging conditions
Researchers studied how different types of UV-simulated aging affect the ability of polylactic acid microplastics to adsorb and release bisphenol A. The study found that aging conditions changed the surface properties of the biodegradable plastic, altering its interaction with this common environmental contaminant. The findings suggest that even biodegradable microplastics can act as carriers of harmful chemicals depending on their degradation state.
UV and chemical aging alter the adsorption behavior of microplastics for tetracycline
Researchers found that UV and chemical aging significantly increased microplastics' capacity to adsorb tetracycline, with biodegradable PBAT showing more dramatic changes in surface properties and adsorption behavior compared to conventional plastics like polystyrene and polyethylene.
Adsorption behavior and mechanism of different types of (aged) microplastics for napropamide in soils
Researchers studied how different types of microplastics, both conventional and biodegradable, affect the soil absorption of the herbicide napropamide. They found that aged microplastics had significantly different adsorption properties than new ones, and that the presence of microplastics generally altered how the herbicide behaved in soil. The findings suggest that microplastic pollution may change how agricultural chemicals move through and persist in farmland.
Comparative analysis of the sorption behaviors and mechanisms of amide herbicides on biodegradable and nondegradable microplastics derived from agricultural plastic products
Sorption behavior of amide herbicides onto biodegradable and non-biodegradable microplastics was compared, finding that polymer type and weathering state significantly influenced herbicide uptake. The results inform assessments of whether microplastics in intensively farmed soils amplify herbicide mobility and bioavailability.
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.
Adsorption of neonicotinoid insecticides by mulch film-derived microplastics and their combined toxicity
Researchers studied how microplastics from agricultural mulch films interact with common insecticides used on crops. They found that biodegradable plastic (PBAT) microplastics adsorbed more pesticide than conventional polyethylene microplastics, and that aging increased this adsorption capacity. When combined, the microplastics and insecticides were more toxic to soil organisms than either pollutant alone, suggesting an underappreciated risk in agricultural soils.
Interaction of Microplastics with Emerging Organic Pollutants: A Study on Atrazine Adsorption and Phytotoxicity
Researchers studied how aged and pristine polyethylene microplastics adsorb the herbicide atrazine and whether this combination affects plant seed germination. Aged microplastics absorbed significantly more atrazine than new ones due to surface changes from UV exposure, and the atrazine-loaded aged particles inhibited lettuce germination by up to 34%. The findings suggest that weathered microplastics in agricultural environments may amplify the harmful effects of pesticide contamination.
Microbial metabolism influences microplastic perturbation of dissolved organic matter in agricultural soils
Researchers studied how microplastics from both traditional polyethylene and biodegradable polylactic acid plastics change the chemistry of dissolved organic matter in farm soil. Soil microbes broke down substances released by the plastics, altering the soil's chemical composition over 100 days. Surprisingly, the biodegradable plastic released compounds that soil bacteria could more readily use, and after aging, it had roughly 10 times the pollutant-absorbing capacity of polyethylene, suggesting that so-called biodegradable plastics may pose their own environmental risks in agricultural soil.
Transport of reduced PBAT microplastics in saturated porous media: Synergistic effects of enhanced surface energy and roughness
This study examined how biodegradable PBAT microplastics move through soil after undergoing chemical aging in oxygen-depleted environments. Researchers found that the aging process changed the surface properties of the plastics, making them more mobile in some conditions, which has important implications for understanding how degraded microplastics spread through groundwater systems.
Investigation of the sorption behavior of atrazine in new and aged microplastic and evaluation of its phytotoxic potential
Researchers studied the sorption of atrazine onto new and aged polyethylene microplastics in distilled and nutrient-enriched (eutrophic) water, then assessed the phytotoxic effects on Lactuca sativa germination. Aged MPs adsorbed more atrazine than new MPs, and the combination increased phytotoxicity over atrazine alone, showing that weathered microplastics amplify herbicide risks in aquatic environments.
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.
Interactions of traditional and biodegradable microplastics with neonicotinoid pesticides
Researchers investigated how both traditional and biodegradable microplastics interact with neonicotinoid pesticides in agricultural environments. They found that all microplastic types could adsorb the pesticide thiacloprid, but biodegradable microplastics showed different sorption behavior and higher desorption rates compared to conventional plastics. The study suggests that biodegradable microplastics may actually increase pesticide mobility in soils, creating a previously unrecognized pathway for agricultural chemical contamination.
Adsorption behavior of triazine pesticides on polystyrene microplastics aging with different processes in natural environment
Researchers found that microplastics that have aged in the environment absorb pesticides more effectively and quickly than fresh microplastics, and the pesticide-loaded particles are more toxic to bacteria. This means that as microplastics weather outdoors, they become better carriers for agricultural chemicals, potentially increasing the combined health risks when these contaminated particles enter food or water supplies.
Mechanistic interpretation of the sorption of terbuthylazine pesticide onto aged microplastics
Scientists studied how environmental aging changes the ability of polyethylene microplastics to absorb a common pesticide called terbuthylazine. Aged microplastics absorbed less pesticide than fresh ones because weathering made their surfaces less water-repellent and more negatively charged. This matters for understanding real-world risks because it suggests that the ability of microplastics to carry pesticides and other chemicals may change over time as the particles weather in the environment.
Adsorption behaviors of chlorpyrifos on UV aged microplastics
Researchers investigated how UV aging affects the adsorption of the pesticide chlorpyrifos on biodegradable and non-degradable microplastics, finding that UV irradiation significantly modified plastic surfaces and enhanced their capacity to carry organic pollutants.
The role of gamma-irradiated microplastics in terbuthylazine sorption and desorption processes in contaminated soils
Researchers investigated how gamma-irradiated polyethylene microplastics influence the sorption and desorption of the herbicide terbuthylazine in contaminated agricultural soils. The study found that irradiation-induced aging of microplastics altered their surface properties in ways that affected herbicide binding and release dynamics, with implications for pesticide fate in plastic-contaminated soils.
Aging of biodegradable microplastics and their effect on soil properties: Control from soil water
Researchers studied how biodegradable microplastics made from PLA and PBAT break down in different soil types under varying water conditions. They found that while these plastics aged more in dry and alternating wet-dry conditions, flooded conditions caused bigger changes to soil chemistry, including increased dissolved organic carbon. The study suggests that even biodegradable plastics can meaningfully alter soil properties, and the effects depend heavily on moisture conditions.
Aging characteristics of degradable and non-biodegradable microplastics and their adsorption mechanism for sulfonamides
Researchers investigated how aging processes affect the ability of degradable and non-biodegradable microplastics to adsorb sulfonamide antibiotics in aquatic environments. The study found that aging increased the hydrophilicity and polarity of microplastics, boosting the adsorption capacity of polylactic acid by up to 3.18 times, suggesting that weathered microplastics may pose greater ecological risks as carriers of co-existing contaminants.
A comparative study on the adsorption behavior of pesticides by pristine and aged microplastics from agricultural polyethylene soil films
Researchers compared how pristine and aged agricultural polyethylene film microplastics adsorb pesticides. They found that aged films, which develop rougher surfaces, more cracks, and oxygen-containing chemical groups, adsorb pesticides more readily than pristine ones. The study suggests that weathered agricultural microplastics in soil may act as carriers for pesticide contamination, potentially increasing environmental and human health risks.
Effect of Microplastic Coexistence Conditions on the Environmental Behavior of Atrazine on Soil
Researchers investigated the effect of polyethylene microplastic presence on the environmental behavior of the herbicide atrazine in black and black calcium soils, finding that microplastics increased atrazine adsorption by up to 1.21-fold and that Freundlich isotherms best described the adsorption dynamics.