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61,005 resultsShowing papers similar to Sorption to mulch film decreases bioavailability of two model pesticides for earthworms in soil
ClearSorption 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.
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.
Influence on the processes of retention and transport of pesticides and ecotoxicity of microplastics in a tropical soil
Researchers investigated how high-density polyethylene microplastics from agricultural mulch films affect the behavior of three pesticides in tropical soil, finding that microplastics altered pesticide sorption, transport, and leaching while also increasing ecotoxicological effects on earthworms.
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.
Microplastics mulch film affects the environmental behavior of adsorption and degradation of pesticide residues in soil
Researchers tested how new, aged, and biodegradable polyethylene mulch film microplastics affect the adsorption and degradation of the pesticides imidacloprid and flumioxazin in soil. All three MP types slowed initial pesticide adsorption and extended the time to reach equilibrium, with aged MPs showing the greatest effect, potentially prolonging pesticide persistence in agricultural soils.
Strong but reversible sorption on polar microplastics enhanced earthworm bioaccumulation of associated organic compounds
Sorption experiments showed that organic compounds bound more strongly to polar biodegradable microplastics than to conventional polypropylene, but that strong binding reduced bioavailability to earthworms, with earthworm bioaccumulation of phenanthrene from MP-contaminated soil following patterns predicted by equilibrium partitioning rather than carrier effects.
Polyethylene mulch film-derived microplastics enhance the bioaccumulation of atrazine in two earthworm species (Eisenia fetida and Metaphire guillelmi) via carrier effects
Researchers found that polyethylene mulch film-derived microplastics enhanced atrazine bioaccumulation in two earthworm species through carrier effects, with farmland residual microplastics showing stronger bioconcentration than unused film fragments.
Exploring sorption of pesticides and PAHs in microplastics derived from plastic mulch films used in modern agriculture
Researchers investigated how microplastics derived from agricultural mulch films sorb pesticides and polycyclic aromatic hydrocarbons, finding significant uptake that could facilitate transfer of these contaminants through farming environments.
Microplastics derived from plastic mulch films and their carrier function effect on the environmental risk of pesticides
This review explains how plastic mulch films used in farming break down into microplastics that can absorb and carry pesticides, making the pesticides more toxic to living organisms. The combination of microplastics and pesticides is especially concerning because microplastics can change how pesticides behave in soil, potentially increasing the amount of harmful chemicals that enter the food chain.
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.
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.
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.
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 Microplastics on Bioavailability, Persistence and Toxicity of Plant Pesticides: An Agricultural Perspective
This review examines how microplastics in soil interact with pesticides, generally reducing pesticide effectiveness by absorbing the chemicals onto their surfaces. While this lowers the immediate toxicity of pesticides, it also makes them last longer in the environment and may reduce pest control in agriculture, potentially affecting food production and the long-term safety of the food supply.
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.
Evaluation of the sorption/desorption processes of pesticides in biodegradable mulch films used in agriculture
Researchers evaluated how biodegradable mulch films used in agriculture interact with pesticide residues compared to conventional polyethylene films. The study found that biodegradable films actually retained higher amounts of pesticide residues and released less back into the soil than polyethylene, suggesting that these supposedly greener alternatives may act as more persistent reservoirs for agricultural chemical contaminants.
A laboratory comparison of the interactions between three plastic mulch types and 38 active substances found in pesticides
This laboratory study tested the sorption interactions between 38 pesticide active substances and three types of plastic mulch film, finding that on average plastics reduced the rate of pesticide degradation in soil by about 30%. Plastic mulch films used widely in agriculture can alter the persistence and behavior of pesticides in soil, compounding their combined environmental impact.
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.
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.
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.
Effect of Microplastics on the Bioavailability of (Semi-)Metals in the Soil Earthworm Eisenia fetida
Researchers studied how polystyrene microplastics affect the uptake of cadmium and arsenic by earthworms in paddy soil. They found that microplastics altered the soil chemistry in ways that changed how much of these metals the earthworms absorbed, with effects varying by metal type and concentration. The study suggests that microplastics in contaminated agricultural soils can influence how toxic metals move through the food chain.
Polyvinylchloride and polypropylene as adsorbents of the pesticide monocrotophos enhance oxidative stress in Eudrillus eugeniae (Kinberg)
Earthworms (Eudrillus eugeniae) were exposed to soil containing polyvinyl chloride or polypropylene microplastics pre-loaded with the pesticide monocrotophos, finding that the plastic-pesticide combination increased oxidative stress markers compared to either contaminant alone. The study demonstrates that microplastics can act as vectors delivering pesticides to soil invertebrates, amplifying toxic effects.
Adsorption of acetamiprid, chlorantraniliprole and flubendiamide on different type of microplastics present in alluvial soil
Researchers investigated the adsorption of three pesticides (acetamiprid, chlorantraniliprole, and flubendiamide) onto different types of microplastics in alluvial agricultural soil, finding that microplastics act as vectors for these organic pesticide compounds and affect soil microorganism activity.
Polyethylene film incorporation into the horticultural soil of small periurban production units in Argentina
Researchers surveyed Argentine horticultural soils and found plastic film residues covering 10% of the soil area, then demonstrated in laboratory experiments that polyethylene film strongly adsorbs pesticides (up to 2,284 µg per gram of plastic versus 32 µg per gram of soil), suggesting plastic mulch residues act as pesticide reservoirs that may alter contaminant fate in agricultural fields.