We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
20 resultsShowing papers similar to Effects of complex pollution by microplastics and heavy metals on soil physicochemical properties and microbial communities under alternate wetting and drying conditions
ClearInfluences 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.
[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.
Differential aging processes of microplastics in paddy soil under wet-dry alternation: Insights into chemical structure alteration and dissolved organic matter formation
Researchers investigated the aging of polyethylene, polypropylene, and polystyrene microplastics in paddy soil during seven wet-dry alternation cycles over 98 days and found that cycling conditions accelerated chemical degradation and altered dissolved organic matter (DOM) composition. PE aged most rapidly, and the DOM produced differed structurally from that generated under constant conditions.
Traditional microplastics alter microbial community, metabolites and nutrition in heavy metal-contaminated coastal saline soil
Researchers added three types of microplastics to coastal soil already contaminated with heavy metals (cadmium, copper, and zinc), finding that the plastics altered soil chemistry, shifted microbial communities, disrupted metabolic pathways, and changed how available the toxic metals were to organisms. These findings suggest microplastics can worsen existing heavy metal pollution by changing how metals move through soil ecosystems.
Polypropylene microplastics affect the distribution and bioavailability of cadmium by changing soil components during soil aging
A 180-day soil aging experiment with polypropylene microplastics at 2-10% concentration showed that microplastics altered the distribution of cadmium between soil particle-associated organic matter, organo-mineral complexes, and mineral fractions. Higher microplastic concentrations shifted cadmium toward more stable organo-mineral associations, reducing its bioavailability over time.
Aging of biodegradable microplastics and their effect on soil properties: Control from soil water
Researchers studied how biodegradable microplastics made from PLA and PBAT break down in different soil types under varying water conditions. They found that while these plastics aged more in dry and alternating wet-dry conditions, flooded conditions caused bigger changes to soil chemistry, including increased dissolved organic carbon. The study suggests that even biodegradable plastics can meaningfully alter soil properties, and the effects depend heavily on moisture conditions.
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.
[Effects of Polystyrene Microplastics Combined with Cadmium Contamination on Soil Physicochemical Properties and Physiological Ecology of Lactuca sativa].
Researchers studied the combined effects of polystyrene microplastics and cadmium contamination on soil properties and lettuce growth. The study found that the co-presence of microplastics and heavy metals altered soil physicochemical characteristics and affected plant physiological responses, indicating that compound contamination from microplastics and metals may pose greater risks to agricultural systems than either pollutant alone.
Aging microplastics and coupling of “microplastic-electric fields” can affect soil water-stable aggregates’ stability
Researchers investigated how aged microplastics from polystyrene and polypropylene affect the stability of soil aggregates, which are important for soil health. The study found that weathered microplastics can break down the structure of water-stable soil aggregates, and that the combination of microplastics with electric fields further destabilizes soil, suggesting long-term consequences for soil quality.
Unraveling Complexation and Contaminant Vector Potentialin Aged Polyamide-Heavy Metal Interactions
Researchers found that aged polyamide (PA) microplastics exhibited enhanced adsorption capacity for cadmium and copper compared to pristine PA, with increased surface roughness from aging promoting stronger metal binding via electrostatic interactions, and environmental factors such as pH influencing subsequent metal desorption.
Influence of aged and pristine polyethylene microplastics on bioavailability of three heavy metals in soil: Toxic effects to earthworms (Eisenia fetida)
Researchers studied how aging affects the ability of polyethylene microplastics to influence the bioavailability of zinc, lead, and cadmium in soil, and the resulting toxicity to earthworms. The study found that aged microplastics had different adsorption properties for heavy metals compared to pristine particles, which altered the bioavailability of these metals and affected earthworm health differently depending on microplastic concentration and aging status.
Effects of polyethylene microplastics and cadmium co-contamination on the soybean-soil system: Integrated metabolic and rhizosphere microbial mechanisms
Researchers investigated how polyethylene microplastics and cadmium interact in soybean-soil systems and found that specific microplastic concentrations enhanced cadmium accumulation in roots under moderate contamination. Higher microplastic levels reduced beneficial soil bacteria like Sphingomonas and Bradyrhizobium and suppressed nitrogen-cycling functions. The study demonstrates that microplastics fundamentally alter heavy metal behavior through interconnected plant-metabolite-microbe interactions in agricultural soils.
[Effects of Microplastics on the Leaching of Nutrients and Cadmium from Soil].
A soil column experiment showed that polystyrene and polylactic acid microplastics at varying concentrations affected how nutrients (nitrogen, phosphorus, potassium) and the heavy metal cadmium leach out of soil during simulated rainfall. Higher microplastic concentrations generally altered leaching patterns, raising concerns that microplastic contamination in agricultural soils could change nutrient availability for crops and increase the mobility of toxic heavy metals into groundwater.
Insight into the interactions between microplastics and heavy metals in agricultural soil solution: adsorption performance influenced by microplastic types
Environmental-simulating microplastics (aged under environmental conditions) showed higher cadmium and chromium adsorption capacity than commercial microplastics in agricultural soil solutions, with surface oxidation increasing adsorption—suggesting that aged microplastics are more effective co-transporters of heavy metals in contaminated agricultural soils.
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.
Insights into the influence of polystyrene microplastics on the bio-degradation behavior of tetrabromobisphenol A in soil
Researchers investigated how aged polystyrene microplastics affect the breakdown of the flame retardant TBBPA in soil. The study found that aged microplastics slowed TBBPA degradation by about 22%, reduced beneficial soil enzyme activity, and shifted microbial communities, suggesting that weathered microplastics may worsen soil contamination problems.
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.
Co-exposure to UV-aged microplastics and cadmium induces intestinal toxicity and metabolic responses in earthworms
This study found that UV-aged microplastics (the kind that naturally degrade in sunlight) are more harmful than fresh microplastics when combined with the heavy metal cadmium in soil. Aging changed the microplastics' surface, making them better at absorbing cadmium and delivering it to earthworms, causing more gut damage and metabolic disruption. This highlights that weathered microplastics in the real environment may pose greater risks than lab studies using new plastic particles suggest.
Typical microplastics in field and facility agriculture dynamically affect available cadmium in different soil types through physicochemical dynamics of carbon, iron and microbes
Researchers found that polyurethane and polypropylene microplastics dynamically affect cadmium availability in different soil types through changes in soil carbon chemistry, iron mineral forms, and microbial community composition, with effects varying between field and greenhouse agricultural conditions.
Coexistence of microplastics and Cd alters soil N transformation by affecting enzyme activity and ammonia oxidizer abundance
Researchers studied how the combined presence of microplastics and cadmium in soil affects nitrogen cycling, a process essential for soil fertility. They found that the pollutant mixture altered enzyme activity and shifted the balance of ammonia-oxidizing microbial communities more than either contaminant alone. The findings suggest that co-contamination of soils with microplastics and heavy metals could disrupt nutrient cycles critical for plant growth.