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20 resultsShowing papers similar to The impact of microplastics on the adsorption of 2,4,6-tribromophenol in soils: Competitive adsorption
ClearComparison of adsorption and desorption of triclosan between microplastics and soil particles
Researchers compared adsorption and desorption of triclosan on polyethylene and polystyrene microplastics versus soil particles, finding that PE had the highest adsorption rate and equilibrium capacity while PS and soil showed similar profiles. The results suggest that microplastics in soil environments can compete with soil particles for triclosan binding, potentially altering the contaminant's mobility and bioavailability.
Influence of polyethylene-microplastic on environmental behaviors of metals in soil
Researchers investigated how polyethylene microplastics affect the adsorption, desorption, and bioavailability of heavy metals in soil. They found that adding microplastics altered how metals bind to soil particles and increased the mobility of certain metals like cadmium and lead. The study suggests that microplastic contamination in soils may change the environmental behavior of heavy metals, potentially increasing their availability to plants and soil organisms.
Polyethylene microplastics influence the transport of organic contaminants in soil
Laboratory experiments showed that polyethylene microplastics in soil altered the transport and distribution of organic contaminants, acting as secondary carriers that changed contaminant mobility through the soil matrix. The findings suggest microplastics in agricultural soils could inadvertently redistribute pesticides and other pollutants, with implications for groundwater quality.
Interaction of tetrabromobisphenol A (TBBPA) with microplastics-sediment (MPs-S) complexes: A comparison between binary and simple systems
Researchers examined the adsorption of tetrabromobisphenol A (TBBPA) onto binary microplastic-sediment (MPs-S) complexes composed of PVC, PE, PP, and PS combined with natural sediment, finding that microplastics competed with sediment for adsorption sites, reduced TBBPA sorption relative to sediment-only systems, and that PVC-S showed the highest adsorption capacity.
Microplastics lag the leaching of phenanthrene in soil and reduce its bioavailability to wheat
Researchers found that polystyrene, polyethylene, and PVC microplastics delayed the downward leaching of phenanthrene through soil by adsorbing the contaminant, reducing its bioavailability to wheat, with adsorption capacity following the order PS > PE > PVC.
Adsorption of nonylphenol on coastal saline soil: Will microplastics play a great role?
Researchers examined how polyvinyl chloride, polyethylene, and polypropylene microplastics affect the adsorption of the endocrine-disrupting compound nonylphenol onto coastal saline soil, finding that smaller PVC microplastics (0.11 mm) at 10% addition enhanced soil adsorption capacity by 117%, indicating microplastics significantly alter contaminant behavior in coastal soils.
The adsorption process and mechanism of benzo[a]pyrene in agricultural soil mediated by microplastics
Researchers investigated how different types of microplastics affect the adsorption of the carcinogenic pollutant benzo[a]pyrene in agricultural soil. They found that PVC microplastics had the strongest capacity to adsorb this pollutant, increasing soil adsorption by nearly four times compared to soil alone. The study suggests that microplastics in agricultural soils may concentrate harmful organic pollutants, potentially altering their environmental fate and bioavailability.
Insight into the effect of microplastics on the adsorption and degradation behavior of thiamethoxam in agricultural soils
Researchers found that microplastics in agricultural soil alter both the adsorption and degradation behavior of the pesticide thiamethoxam, with different plastic types showing varying effects on how the pesticide binds to soil and breaks down over time.
Sorption of 3,6-dibromocarbazole and 1,3,6,8-tetrabromocarbazole by microplastics
Two brominated carbazole pollutants were found to readily adsorb onto polypropylene microplastics in seawater, with smaller plastic particles absorbing more chemical per unit mass. This demonstrates that microplastics can concentrate brominated organic pollutants from seawater and potentially deliver them to marine organisms.
Enlarging effects of microplastics on adsorption, desorption and bioaccessibility of chlorinated organophosphorus flame retardants in landfill soil particle-size fractions
Researchers studied how microplastics affect the behavior of chlorinated flame retardant chemicals in landfill soils, including their tendency to be absorbed by the human body during digestion. They found that adding microplastics increased both the retention of these chemicals in soil and their bioaccessibility, raising potential health risks for people exposed to contaminated landfill material. The study presents the first evidence that microplastics can amplify human exposure to toxic flame retardants in landfill settings.
How does soil contamination by microplastics interferes the sorption and desorption processes of three herbicides?
Researchers tested how varying proportions of polyethylene microplastics (0-100% by weight) affected the sorption and desorption of three herbicides (hexazinone, diuron, S-metolachlor) in soil. Microplastic presence significantly altered sorption behavior for S-metolachlor, with effects depending on microplastic concentration and herbicide chemical structure.
Contrasting effects of microplastics on sorption of diazepam and phenanthrene in soil
Researchers found contrasting effects of polyethylene, polypropylene, and polystyrene microplastics on the sorption of diazepam and phenanthrene in two soil types, with microplastics decreasing overall sorption of polar diazepam at 10% addition while increasing sorption of nonpolar phenanthrene at 1% addition. The results highlight that microplastic type and concentration interact with pollutant polarity to determine net sorption outcomes in soil.
Adsorption mechanisms of chlorobenzenes and trifluralin on primary polyethylene microplastics in the aquatic environment
Researchers investigated the adsorption mechanisms of six priority chlorinated and aromatic pollutants (including trichlorobenzenes and trifluralin) onto primary polyethylene microplastics, revealing how plastic type, surface area, and compound properties govern contaminant uptake in aqueous environments.
Investigating the impact of microplastics on triphenyl phosphate adsorption in soil: Insights into environmental factors and soil properties
This study examined how microplastics in soil affect the behavior of triphenyl phosphate, a common flame retardant chemical. Environmental conditions like UV light and soil acidity changed how much of the chemical stuck to the microplastics, altering its movement through soil. The findings matter because microplastics can act as carriers for toxic chemicals in agricultural soil, potentially moving them into groundwater or crops that people consume.
Effect of Microplastics on the Adsorption and Desorption Properties of Cadmium in Soil
Polyethylene and polypropylene microplastics were found to reduce soil's capacity to adsorb cadmium, a toxic heavy metal, raising concerns that microplastic contamination in farmland soils could increase the mobility and risk of heavy metal pollutants.
Impact of polyethylene microplastics on the vertical migration of pesticides in soil
Researchers investigated how polyethylene microplastics affect the vertical migration of pesticide mixtures in soil using stainless steel column experiments with sandy reference soil, finding that microplastics' hydrophobic surfaces and high sorption capacity altered the transport of 20 pesticides compared to uncontaminated soil.
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.
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.
Adsorption behaviors and bioavailability of tetrabromobisphenol A in the presence of polystyrene microplastic in soil: Effect of microplastics aging
Researchers studied how aging changes the ability of polystyrene microplastics to absorb and release a flame retardant chemical called TBBPA in soil. They found that aged microplastics had a greater capacity to adsorb the chemical but also released it more readily, increasing the bioavailability of this toxic compound to soil organisms. The study reveals that as microplastics weather in the environment, they may actually become more effective carriers of harmful chemicals into the food chain.
Interactions of Microplastics with Pesticides in Soils and Their Ecotoxicological Implications
This review examines how microplastics interact with pesticides in soil environments, finding that microplastics can sorb and transport pesticides, potentially altering their bioavailability and toxicity to soil organisms and ecosystems.