We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Regulation strategies of microplastics with different particle sizes on cadmium migration processes and toxicity in soil-pakchoi system
ClearAssociation between plant microbiota and cadmium uptake under the influence of microplastics with different particle sizes
Researchers investigated how different sizes of polystyrene microplastics affect plant microbiota and cadmium uptake in pakchoi. The study found that larger microplastic particles (2 and 20 micrometers) significantly altered rhizosphere and root bacterial communities and influenced cadmium accumulation, while smaller particles (0.2 micrometers) had less impact on bacterial community structure.
Different effects and mechanisms of polystyrene micro- and nano-plastics on the uptake of heavy metals (Cu, Zn, Pb and Cd) by lettuce (Lactuca sativa L.)
Researchers investigated how polystyrene micro- and nanoplastics affect the uptake of heavy metals by lettuce grown in contaminated soil. They found that nanoplastics increased the accumulation of copper and zinc in lettuce leaves, while microplastics had the opposite effect for some metals. The study reveals that plastic particle size plays a critical role in determining whether microplastics worsen or reduce heavy metal contamination in food crops.
Effect of cadmium on polystyrene transport in parsley roots planted in a split-root system and assessment of the combined toxic effects
Researchers used a split-root system to study how cadmium affects the movement of polystyrene micro and nanoplastics in parsley plants. They found that plastic nanoparticles traveled through the plant's internal transport system from contaminated roots to clean roots, but cadmium reduced this movement by changing the plastics' surface charge. The study shows that in contaminated soil, heavy metals and microplastics interact in complex ways that affect how much plastic ends up in edible crops.
Enhanced Cadmium Adsorption Dynamics in Water and Soil by Polystyrene Microplastics and Biochar
Researchers studied how polystyrene microplastics and biochar interact with cadmium, a toxic heavy metal, in water and soil systems. They found that particle size significantly influenced how much cadmium was adsorbed, with the combination of microplastics and biochar creating complex dynamics that affected metal mobility. The findings matter because microplastics in agricultural soils may alter how toxic metals move through the environment and into food crops.
Effects of Co-Contamination of Microplastics and Cd on Plant Growth and Cd Accumulation
Researchers investigated how two types of microplastics, high-density polyethylene and polystyrene, at various concentrations affect cadmium uptake and toxicity in maize plants grown in agricultural soil. The study found that while polyethylene alone had no significant effect, polystyrene at higher doses altered cadmium accumulation patterns, suggesting that different plastic types may interact differently with heavy metals in soil.
Uptake and ecotoxicity of microplastics of different particle sizes in crop species
Researchers exposed seedlings of three crop species to small (0.2 µm) and large (1.0 µm) polystyrene beads and found that particle size did not affect fresh weight, but smaller particles caused significantly greater root length inhibition in cucumber compared to bean and sorghum.
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.
Effect of polystyrene on di-butyl phthalate (DBP) bioavailability and DBP-induced phytotoxicity in lettuce
Researchers investigated how polystyrene microplastics of different sizes affect the bioavailability of the plasticizer di-butyl phthalate and its toxicity to lettuce plants. They found that smaller nanoscale polystyrene particles increased DBP uptake by the plants, while larger particles reduced it by adsorbing the chemical. The study demonstrates that microplastics can act as carriers for harmful chemicals in agricultural soils, with particle size determining whether they amplify or reduce pollutant exposure to crops.
Microplastics addition reduced the toxicity and uptake of cadmium to Brassica chinensis L.
Researchers studied how the presence of microplastics in soil affects the toxicity and uptake of cadmium, a harmful heavy metal, by Chinese cabbage plants. They found that microplastics actually reduced cadmium accumulation in the plants by adsorbing the metal onto their surfaces, effectively lowering its availability in the soil. While this reduced cadmium toxicity to the plants, the study notes that microplastics themselves may introduce other environmental risks.
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.
Microplastics alter cadmium accumulation in different soil-plant systems: Revealing the crucial roles of soil bacteria and metabolism
A study found that microplastics in soil can change how much cadmium, a toxic heavy metal, is absorbed by food crops, with the effects varying depending on soil type and the amount of plastic present. By altering soil chemistry and bacterial communities, microplastics reshape how pollutants move through farmland and into the food we eat.
Influences of microplastics types and size on soil properties and cadmium adsorption in paddy soil after one rice season
Researchers grew rice in paddy soil amended with polyethylene, polyacrylonitrile, and PET microplastics of varying sizes and found that microplastic type and particle size significantly altered soil properties and cadmium adsorption capacity, with smaller particles generally having greater effects.
[Effects of Polyethylene Microplastics on the Growth and Quality of Brassica campestris L. in a Three-season Consecutive Cultivation].
Researchers investigated how polystyrene microplastics of four particle size fractions (under 25, 25-48, 48-150, and 150-850 micrometers) affect the growth, development, and nutrient quality of Chinese cabbage (Brassica campestris L.) across three consecutive cultivation seasons in pot experiments, finding significant size-dependent inhibitory effects on plant growth and soil nutrient supply.
Effects of microplastics on arsenic uptake and distribution in rice seedlings
Researchers investigated how polystyrene micro- and nanoplastics affect arsenic uptake in rice seedlings grown in a hydroponic system. They found that nanoplastics (82 nm) increased arsenic accumulation in rice leaves by 12 to 37 percent, while larger microplastics (200 nm) reduced it. The study suggests that the size of plastic particles plays an important role in determining how they influence heavy metal uptake in crop plants, with implications for food safety.
Impact of polystyrene microplastics on cadmium uptake in corn (Zea mays L.) in a cadmium‐contaminated calcareous soil
This study found that polystyrene microplastics in soil increased the uptake of the toxic heavy metal cadmium in corn plants. The research showed that microplastic contamination in agricultural soil can make crops absorb more harmful substances. This is a direct concern for food safety, as microplastics in farmland could increase our exposure to heavy metals through the food we eat.
Uptake and distribution of microplastics of different particle sizes in maize (Zea mays) seedling roots
Researchers studied how maize seedling roots take up polystyrene microplastic beads of different sizes and found that smaller particles were absorbed more readily than larger ones. Particles as small as 0.2 micrometers were detected in both roots and shoots, with the root tip being the primary uptake zone. The findings confirm that microplastics can enter food crops through their root systems, raising questions about food safety.
Presence of polystyrene microplastics in Cd contaminated water promotes Cd removal by nano zero-valent iron and ryegrass (Lolium Perenne L.)
Researchers investigated how polystyrene microplastics affect cadmium removal from water by ryegrass combined with nano zero-valent iron variants, finding that microplastics facilitated uptake of both microplastics and cadmium into plant roots in some treatment combinations. Plants that internalized microplastics contained more cadmium across all nano zero-valent iron treatments, suggesting microplastics can enhance cadmium accumulation in phytoremediation systems.
Microplastics increase cadmium absorption and impair nutrient uptake and growth in red amaranth (Amaranthus tricolor L.) in the presence of cadmium and biochar
This study tested how three common microplastic types affect a leafy vegetable (red amaranth) when combined with the toxic heavy metal cadmium. Polystyrene microplastics were especially harmful, increasing cadmium uptake by up to 158% while reducing the plant's ability to absorb essential nutrients like phosphorus and potassium -- meaning microplastics in farmland could make heavy metal contamination in food crops even worse.
Influences of coexisting aged polystyrene microplastics on the ecological and health risks of cadmium in soils: A leachability and oral bioaccessibility based study
This study tested whether the presence of aged microplastics in soil changes how easily the toxic heavy metal cadmium can enter the human body through accidental soil ingestion. The results showed that aged polystyrene microplastics actually reduced cadmium absorption in the stomach phase, though the effect varied by soil type. This suggests that the interaction between microplastics and other pollutants in soil creates a complicated picture for assessing human health risks.
Toxicity and fate of cadmium in hydroponically cultivated lettuce (Lactuca sativa L.) influenced by microplastics
Researchers found that PVC microplastics changed how lettuce plants absorb the toxic heavy metal cadmium when both were present in the growing water. The microplastics initially absorbed cadmium from the water but then altered the plant's uptake patterns, affecting where the metal accumulated in roots versus leaves. This matters because microplastics in agricultural water could change how toxic metals end up in the edible parts of vegetables people eat.
Polystyrene nanoplastics distinctly impact cadmium uptake and toxicity in Arabidopsis thaliana
In a study using the model plant Arabidopsis, polystyrene nanoplastics increased the uptake and accumulation of the toxic heavy metal cadmium in plant roots. The combined stress of nanoplastics and cadmium caused worse oxidative damage and growth problems than either pollutant alone. This is concerning because it means microplastics in agricultural soil could help toxic metals get into crops more easily, potentially increasing human exposure through food.
Microplastics induce alterations in soil structure and hydrodynamics: A critical factor controlling cadmium transport in karst soils
Researchers used soil column leaching experiments to investigate how microplastics influence cadmium transport in karst carbonate-weathered soils, testing different MP sizes and concentrations alongside controls. They found MPs generally enhanced Cd migration by altering soil pore structure and increasing porosity, though at smaller sizes (10-15 micrometres) and higher concentrations (3%) MPs paradoxically inhibited Cd migration, revealing that pore structure modification is the primary mechanism controlling co-contaminant transport.
Combined effects of microplastics and cadmium on the soil-plant system: Phytotoxicity, Cd accumulation and microbial activity
Researchers tested how different microplastic types combined with cadmium affect plant growth and soil health. Aged and biodegradable microplastics increased cadmium uptake in mustard greens more than fresh conventional plastics did. The study also found that microplastics altered soil microbial activity, suggesting that plastic pollution in farmland could change how plants absorb toxic metals from contaminated soil.
Co-exposure of polystyrene microplastics influence cadmium trophic transfer along the “lettuce-snail” food chain: Focus on leaf age and the chemical fractionations of Cd in lettuce
Researchers found that polystyrene microplastics altered cadmium accumulation and trophic transfer along the lettuce-snail food chain, with effects varying by leaf age and the chemical fractionation of cadmium in lettuce tissues.