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20 resultsShowing papers similar to Insight into the interactions between microplastics and heavy metals in agricultural soil solution: adsorption performance influenced by microplastic types
ClearEffect 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.
Response of occurrence in microplastics and its adsorped cadmium capacity to simulated agricultural environmental scenarios in sludge-amended soil
Researchers found that UV irradiation of microplastics in sludge-amended soil most significantly increased their capacity to adsorb cadmium, due to surface changes including increased surface area, new crystal formation, and altered functional groups, raising concerns about heavy metal mobilization in agricultural soils.
Study on the Adsorption Behavior and Mechanism of Heavy Metals in Aquatic Environment before and after the Aging of Typical Microplastics
Researchers investigated the adsorption behavior and mechanisms of heavy metals by typical microplastics before and after environmental aging, finding that aging significantly alters microplastics' surface properties and capacity to bind metals such as cadmium and lead in aquatic systems.
Effects of soil environmental factors and UV aging on Cu2+ adsorption on microplastics
Laboratory experiments and modeling showed that copper adsorption onto microplastics was significantly influenced by soil environmental factors (pH, organic matter, ionic strength) and the degree of UV aging of the plastic particles. Understanding these context-dependent sorption behaviors is important for predicting how microplastics transport heavy metals in real agricultural soils.
Interaction of microplastics with heavy metals in soil: Mechanisms, influencing factors and biological effects
This review summarizes how microplastics and heavy metals interact in soil, where microplastics can absorb and carry toxic metals through the food chain and into the human body. Aging and weathering of microplastics changes their surface properties, making them better at picking up heavy metals, which raises concerns about combined exposure through contaminated crops and water.
Co-transport of degradable microplastics with Cd(Ⅱ) in saturated porous media: Synergistic effects of strong adsorption affinity and high mobility
Researchers investigated the co-transport of degradable microplastics with cadmium in saturated porous media, finding that these plastics' strong adsorption affinity and high mobility create synergistic effects that enhance heavy metal migration in soil.
Sorption properties of cadmium on microplastics: The common practice experiment and A two-dimensional correlation spectroscopic study
Laboratory experiments examined how cadmium adsorbs onto microplastics of different polymer types and aging states, finding that surface chemistry and weathering significantly affect how much heavy metal the plastics can carry. This matters because microplastics contaminated with heavy metals represent a dual pollution risk when ingested by aquatic organisms.
Adsorption characteristics of cadmium onto microplastics from aqueous solutions
Laboratory adsorption experiments characterized how cadmium is taken up by microplastics of different polymer types from aqueous solutions, finding adsorption capacity varied significantly with polymer chemistry, particle size, and solution conditions. The results help predict how microplastics in contaminated waterways accumulate and transport cadmium, a highly toxic heavy metal.
Biodegradable microplastics adsorb more Cd than conventional microplastic and biofilms enhance their adsorption
Researchers compared how biodegradable polylactic acid and conventional polyethylene microplastics adsorb the heavy metal cadmium, with and without biofilm development from outdoor weathering. They found that pristine PLA adsorbed significantly more cadmium than pristine PE, and that biofilms forming on weathered plastics were responsible for most of the increased cadmium uptake. The study suggests that biodegradable microplastics in agricultural soils may pose a greater risk for heavy metal transport than conventional plastics.
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.
Microplastics in soils with contrasting texture, organic carbon and mineralogy: changes in cadmium adsorption forms and their mobility in soil columns
This study investigated how high-density polyethylene microplastics alter the behavior of cadmium — a toxic heavy metal — in soils with different textures, organic carbon contents, and mineral compositions. Using soil column experiments, researchers found that microplastics changed how cadmium binds to soil particles and how easily it leaches downward, with effects varying depending on the soil type and microplastic particle size. Since cadmium is a known carcinogen and agricultural soils commonly contain both microplastics and heavy metals, understanding their interactions is critical for food safety.
Adsorption Characteristics of Cd and Pb on Microplastic Films Generated in Agricultural Environment
Korean researchers found that agricultural microplastic films (used in greenhouses and mulching) can adsorb heavy metals like cadmium and lead onto their surfaces. This means microplastics in farm soils can accumulate and transport toxic metals, potentially contaminating crops and groundwater.
Research Progress on the Adsorption and Their Mechanisms of Heavy Metal in Soil By Microplastics
This review examines how microplastics adsorb heavy metals in soil environments, summarizing mechanisms including electrostatic attraction, surface complexation, and hydrophobic interactions that make MPs effective vectors for metal transport and bioavailability.
[Effects of Aging on the Cd Adsorption by Microplastics and the Relevant Mechanisms].
This study examined how aging affects the ability of microplastics — including polyethylene and polystyrene — to adsorb the heavy metal cadmium. Weathered microplastics showed different adsorption behavior than virgin particles, which has implications for how microplastics transport toxic metals through aquatic environments.
Aging properties of polyethylene and polylactic acid microplastics and their adsorption behavior of Cd(II) and Cr(VI) in aquatic environments
Researchers compared how polyethylene and polylactic acid (PLA) microplastics age in the environment and how that aging affects their ability to absorb heavy metals like cadmium and chromium from water. They found that aging changed the surface chemistry of both plastic types, increasing their capacity to pick up these toxic metals. The findings matter because aged microplastics in the environment may concentrate and transport more pollutants than fresh plastic particles.
Effects of microplastics and cadmium co-contamination on soil properties, maize (Zea mays L.) growth characteristics, and cadmium accumulation in maize in loessial soil-maize systems
Researchers studied the combined effects of polyethylene microplastics and cadmium on soil properties and maize growth through pot experiments. They found that microplastics altered soil nutrient availability and, depending on size and concentration, either increased or decreased cadmium uptake by the plants. The study suggests that microplastic contamination in agricultural soils can change how crops absorb toxic heavy metals, with potential implications for food safety.
Interactions of microplastics and soil pollutants in soil-plant systems
This review synthesized literature on microplastic interactions with organic pollutants and heavy metals in the soil-plant system, covering sorption mechanisms, distribution characteristics, and transfer to crops. Microplastics were found to both adsorb and desorb contaminants depending on environmental conditions, acting as both concentrators and dispersal agents for soil pollutants.
The potential of microplastics as carriers of metals
Five types of microplastics were tested for their ability to adsorb heavy metals (Cd, Co, Cr, Cu, Ni, Pb, Zn) in different water matrices, finding significant adsorption of lead, chromium, and zinc—especially on polyethylene and PVC—with surface area and porosity as key drivers. The study identifies microplastics as potential vectors for heavy metal transport and transfer through aquatic food chains.
Response of soil heavy metal forms and bioavailability to the application of microplastics across five years in different soil types
Researchers conducted a five-year experiment examining how microplastics affect the chemical forms and bioavailability of heavy metals across five different soil types. They found that microplastics generally reduced the readily available forms of heavy metals while increasing the mineral- and organic-bound forms, and that the bioconcentration of chromium and lead decreased substantially. The study suggests that soil type and exposure duration both play important roles in how microplastics influence heavy metal behavior in soils.
Assessment of soil microplastics: An overview on toxicity, effects on heavy metals adsorption, solid-phase extraction, and detection techniques
This review examined how microplastics in soil enter the food chain and pose human health risks, with particular attention to their role as carriers for heavy metals. Agricultural practices like plastic mulching and sewage sludge application were identified as major sources of soil MP contamination.