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61,005 resultsShowing papers similar to Influence on the processes of retention and transport of pesticides and ecotoxicity of microplastics in a tropical soil
ClearInfluência nos processos de retenção e transporte de pesticidas e ecotoxicidade de microplásticos em solo tropical
Researchers investigated how high-density polyethylene microplastics from agricultural mulch films influence the retention and transport of pesticides in tropical soil, finding that microplastics alter pesticide dynamics and may increase their environmental persistence and ecotoxicity.
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.
Sorption to mulch film decreases bioavailability of two model pesticides for earthworms in soil
Researchers investigated how polyethylene mulch film microplastics interact with pesticides in agricultural soil and their combined effects on earthworms. The study found that sorption of pesticides to mulch film microplastics actually decreased the bioavailability of two model pesticides to earthworms, suggesting that in some cases microplastics may reduce rather than increase pesticide toxicity to soil organisms.
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.
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.
Low-density polyethylene microplastics as a source and carriers of agrochemicals to soil and earthworms
Researchers investigated whether low-density polyethylene microplastics could act as carriers of agrochemicals in soil and found that the particles both released their own chemical additives and transported pesticides to earthworms. The study suggests microplastics in agricultural soils may serve as a previously underappreciated pathway for chemical exposure in soil organisms.
Sorption to mulch film decreases bioavailability of two model pesticides for earthworms in soil
This study investigated how agricultural mulch film microplastics affect the bioavailability of pesticides to earthworms in soil. Sorption of two model pesticides onto mulch film microplastics significantly decreased their bioavailability, suggesting MPs may alter the ecological risk profile of pesticide-contaminated agricultural soils.
Biogenic transport of glyphosate in the presence of LDPE microplastics: A mesocosm experiment
A mesocosm experiment showed that earthworms can transport glyphosate and its breakdown product AMPA deeper into soil when low-density polyethylene microplastics are present, altering herbicide distribution compared to soil without microplastics. The results indicate that microplastics can indirectly affect pesticide fate in agricultural soils by modifying biological transport processes.
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.
Agricultural film-derived microplastics elevate the potential risk of pesticides in soil ecosystem: The inhibited leaching by altering soil pore
Researchers found that microplastics derived from agricultural mulch film can increase the environmental risk of pesticides by altering soil pore structure and inhibiting pesticide leaching. Smaller microplastic particles had a stronger effect on trapping pesticides in the upper soil layers, leading to higher localized concentrations. The study suggests that the co-occurrence of microplastics and pesticides in farm soils may create compounding contamination risks for agricultural ecosystems.
The vertical migration of a pesticide mixture in sandy soil is strongly driven by their sorption behavior and can be altered by Polyethylene Microplastics
Researchers packed sandy soil columns with a mixture of 20 pesticides and 1% polyethylene microplastics, then flushed them with contaminated water to track pesticide movement. They found that PE microplastics accelerated the downward migration of five slowly leaching pesticides, increasing the risk of groundwater contamination.
Assessing the role of polyethylene microplastics as a vector for organic pollutants in soil: Ecotoxicological and molecular approaches
Polyethylene microplastics were shown to act as vectors for organic pollutants including pharmaceuticals and pesticides in soil, with earthworm bioaccumulation assays and molecular endpoints revealing that MPs increased contaminant uptake compared to soil exposure alone.
Effects of neonicotinoid insecticides on transport of non-degradable agricultural film microplastics
Researchers investigated how neonicotinoid insecticides adsorb onto agricultural film microplastics and affect their transport through porous media, finding that neonicotinoids altered microplastic mobility in ways that could influence contaminant spread in farmland soils.
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.
Different effects of polyethylene microplastics on bioaccumulation of three fungicides in maize (Zea mays L.)
Polyethylene microplastics in agricultural soil altered the sorption and dissipation of three fungicides and their accumulation in maize plants, with effects differing by fungicide type and plastic particle concentration.
Effects of microplastics and chlorpyrifos on earthworms (Lumbricus terrestris) and their biogenic transport in sandy soil
Researchers conducted mesocosm experiments to examine the effects of polyethylene and biodegradable microplastics combined with the pesticide chlorpyrifos on earthworms and their role in transporting these contaminants through soil. The study found that while earthworm reproduction was not significantly affected, earthworm burrowing activity facilitated the vertical transport of both microplastics and chlorpyrifos deeper into the soil profile.
Impact of polyethylene microplastics on the vertical migration of pesticides in soil
Researchers investigated the impact of polyethylene microplastics on the vertical migration of complex pesticide mixtures in soil using medium-sized column experiments with 20 pesticides, addressing the gap that prior studies had focused on single-compound rather than multi-compound contamination scenarios. The study examined how microplastic hydrophobic surfaces and sorption capacity alter pesticide mobility and leaching risk in agricultural soils.
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.
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.
Soil health risks caused by interactions of microplastics and pesticides
Chlorpyrifos adsorption and desorption on pristine and UV-aged LDPE and biodegradable microplastics derived from plastic mulch films was investigated in laboratory experiments, along with bioconcentration in earthworms. Aging altered the adsorption-desorption behavior of both plastic types and affected pesticide bioavailability to earthworms, highlighting risks from pesticide-microplastic interactions in agricultural soils.
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.
Impact of microplastics on nicosulfuron accumulation and bacteria community in soil-earthworms system
Researchers investigated how microplastics affect the accumulation of the pesticide nicosulfuron in soil and earthworms. They found that at higher concentrations, microplastics nearly doubled the amount of pesticide that accumulated in earthworms while reducing the amount remaining in soil. The study also showed that microplastics decreased bacterial diversity in both soil and earthworm guts, suggesting they may alter how pesticides move through terrestrial food chains.
Influence of microplastic addition on glyphosate decay and soil microbial activities in Chinese loess soil
Adding polyethylene microplastics to soil influenced the degradation of the herbicide glyphosate and altered microbial activity, with effects depending on the concentration of both microplastics and glyphosate. The findings suggest that microplastic contamination in agricultural soils could affect how long pesticides persist and how soil microbes function.
A comparative study on the adsorption behavior and mechanism of pesticides on agricultural film microplastics and straw degradation products
Researchers compared how agricultural film microplastics and straw-derived cellulose particles adsorb pesticides in farmland soils, finding that both materials sorb pesticides but through different mechanisms, with microplastics showing higher affinity for hydrophobic compounds, potentially altering pesticide mobility and bioavailability.