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61,005 resultsShowing papers similar to Bioavailability of pyrene in soil affected by polylactic acid and polystyrene microplastics and their toxic effects on earthworms (Eisenia fetida)
ClearEffects of polystyrene microplastics on accumulation of pyrene by earthworms
Polystyrene microplastics and nanoplastics were found to significantly alter the accumulation of the polycyclic aromatic hydrocarbon pyrene in earthworms compared to pyrene exposure alone, with nanoplastics producing greater effects than microplastics. The study reveals that plastic particles can modify organic pollutant bioavailability to soil invertebrates, with implications for combined contamination risk assessments.
Combined toxicity of polyethylene microplastics and nickel oxide nanoparticle on earthworm (Eisenia andrei): oxidative stress responses, bioavailability and joint effect
Researchers studied the combined toxicity of polyethylene microplastics and nickel oxide nanoparticles on earthworms over 28 days. They found that smaller microplastics caused greater oxidative stress, and the combination of both pollutants was more harmful than either one alone. The study suggests that the co-occurrence of microplastics and metal nanoparticles in soil can amplify negative effects on soil-dwelling organisms.
Aging enhancement and synergistic effect on toxicity to soil fauna by polystyrene microplastics-tetrabromobisphenol A toxicity exposure
Researchers investigated the combined toxicity of aged polystyrene microplastics and the flame retardant tetrabromobisphenol A on earthworms, finding that aging enhanced the microplastics' ability to adsorb and deliver the toxic chemical. The co-exposure produced synergistic effects including increased oxidative stress, gut microbiome disruption, and tissue damage beyond what either contaminant caused alone. The study highlights that weathered microplastics in contaminated soils may amplify the toxicity of co-occurring industrial chemicals.
Compound effect and mechanism of oxidative damage induced by nanoplastics and benzo [a] pyrene
Researchers examined how polystyrene nanoplastics and a common environmental pollutant called benzo[a]pyrene work together to cause oxidative damage in earthworm cells. They found that the two contaminants had a synergistic toxic effect, with combined exposure producing significantly higher levels of cell-damaging reactive oxygen species than either pollutant alone. The study suggests that nanoplastics may enhance the harmful effects of other soil pollutants by altering how they interact with living cells.
Toxicological effects of polystyrene microplastics on earthworm (Eisenia fetida)
Researchers exposed earthworms to two sizes of polystyrene microplastics in soil for 14 days and found evidence of intestinal cell damage, oxidative stress, and DNA damage. The larger particles accumulated more in earthworm intestines, while both sizes triggered changes in key antioxidant markers. The study demonstrates that microplastic contamination in soil can cause measurable biological harm to important soil organisms.
Impacts of polyethylene microplastics on bioavailability and toxicity of metals in soil
Researchers studied how polyethylene microplastics affect the bioavailability and toxicity of copper and nickel in soil using earthworms as test organisms. They found that adding microplastics to contaminated soil increased the bioavailability of the metals and enhanced their toxic effects on the earthworms. The study suggests that microplastics in soil can worsen heavy metal pollution by making metals more accessible and harmful to soil-dwelling organisms.
Understanding the harmful effects of polyethylene microplastics on Eisenia fetida: A toxicological evaluation
Earthworms (Eisenia fetida) exposed to increasing concentrations of polyethylene microplastics in soil showed lower body weight, reduced reproductive output, and disrupted antioxidant defenses — with oxidative stress markers climbing nearly 1.3-fold at the highest dose. These findings confirm that microplastic pollution degrades soil ecosystem health at concentrations that could plausibly occur in contaminated agricultural land.
Oxidative stress and gene expression induced by biodegradable microplastics and imidacloprid in earthworms (Eisenia fetida) at environmentally relevant concentrations
Researchers exposed earthworms to biodegradable microplastics made from polylactic acid (PLA), both alone and combined with a common pesticide. Both treatments caused oxidative stress and DNA damage, and the combined exposure was often more harmful than either pollutant alone. This study is important because it shows that even so-called biodegradable plastics can harm soil organisms and may interact with other agricultural chemicals to create greater environmental damage.
Accumulation of microplastics and Tcep pollutants in agricultural soil: Exploring the links between metabolites and gut microbiota in earthworm homeostasis
Researchers investigated the co-occurrence of polyethylene microplastics and the flame retardant TCEP in agricultural soils and their combined effects on earthworm health. The study found that co-exposure disrupted earthworm gut microbiota and metabolic homeostasis, suggesting that the interaction between microplastics and chemical additives in agricultural soil may pose greater ecological risks than either contaminant alone.
Combined toxicity of organophosphate flame retardants and polyethylene microplastics on Eisenia fetida: Biochemical and molecular insights
Researchers exposed earthworms to polyethylene microplastics, chlorinated flame retardants, and their combinations to assess combined toxicity effects. They found that the most toxic flame retardant (TDCPP) had its effects reduced when combined with microplastics, likely because the plastics absorbed the chemical and lowered its bioavailability. In contrast, microplastics enhanced the toxicity of another flame retardant (TCPP), demonstrating that microplastics can act as both carriers and modulators of co-contaminant toxicity in soil ecosystems.
The combined effects of azoxystrobin and different aged polyethylene microplastics on earthworms (Eisenia fetida): A systematic evaluation based on oxidative damage and intestinal function
Scientists studied how the pesticide azoxystrobin and aged polyethylene microplastics together affect earthworms, and found the combination was significantly more toxic than either pollutant alone. The aged microplastics helped the earthworms absorb more pesticide, leading to greater weight loss, more oxidative damage, and worse intestinal damage. This is important for human health because it shows that microplastics in agricultural soil can increase the bioavailability and toxicity of pesticides that may end up in our food.
Evaluation of the toxicity effects of microplastics and cadmium on earthworms
Researchers evaluated the combined toxicity of microplastics and cadmium on earthworms (Eisenia fetida) using both short-term and long-term exposure experiments. They found that the co-exposure produced interactive toxic effects on antioxidant enzyme activity and caused DNA damage, with toxicity severity influenced by microplastic particle size and concentration. The study suggests that the presence of microplastics in contaminated soils can modify how heavy metals like cadmium affect soil organisms.
Microplastics aggravate the joint toxicity to earthworm Eisenia fetida with cadmium by altering its availability
Researchers exposed earthworms to polyethylene microplastics combined with cadmium and found that co-exposure caused significantly worse effects than either pollutant alone, including increased avoidance behavior, weight loss, and DNA damage. The microplastics increased the bioavailability of cadmium in soil by up to 1.43-fold and boosted cadmium accumulation in earthworm tissue by up to 2.65-fold. The study demonstrates that microplastics can worsen heavy metal toxicity to soil organisms by making the metals more accessible for uptake.
Gut toxicity of polystyrene microplastics and polychlorinated biphenyls to Eisenia fetida: Single and co-exposure effects with a focus on links between gut bacteria and bacterial translocation stemming from gut barrier damage
Researchers examined how polystyrene microplastics and polychlorinated biphenyls (PCBs) affect the gut health of earthworms, both individually and in combination. They found that co-exposure caused more severe gut barrier damage and bacterial translocation than either pollutant alone, with significant disruption to the gut microbial community. The study highlights the importance of considering combined pollutant effects when assessing environmental risks to soil organisms.
Ecotoxicological impact of naproxen on Eisenia fetida: Unraveling soil contamination risks and the modulating role of microplastics
Researchers found that the common painkiller naproxen and microplastics together had different toxic effects on earthworms than either pollutant alone, with microplastics altering how the drug was metabolized and accumulated. Microplastics caused oxidative damage and changed lipid metabolism patterns in the worms, and these effects dominated when both pollutants were present together. Since soils contain both pharmaceuticals and microplastics from sewage and runoff, this study shows how these co-occurring pollutants can interact in unexpected ways that affect soil ecosystem health.
Exploring the toxicity of biodegradable microplastics and imidacloprid to earthworms (Eisenia fetida) from morphological and gut microbial perspectives
Researchers found that biodegradable microplastics made from polylactic acid (PLA) combined with the pesticide imidacloprid caused more severe harm to earthworms than either pollutant alone, including higher death rates, tissue damage, and disrupted gut bacteria. This is concerning because PLA plastics are marketed as eco-friendly alternatives, yet they can still break down into harmful microplastics in soil. The study shows that biodegradable plastics may actually make pesticide contamination worse for soil organisms.
Environmental relevant concentrations of polystyrene nanoplastics and lead co-exposure triggered cellular cytotoxicity responses and underlying mechanisms in Eisenia fetida
Researchers studied how polystyrene nanoplastics and lead, a toxic heavy metal, interact when earthworm immune cells are exposed to both simultaneously at environmentally realistic concentrations. The combined exposure caused more severe cell damage, oxidative stress, and inflammation than either pollutant alone. The findings suggest that nanoplastics can increase the harmful effects of heavy metals on soil organisms, raising concerns about the real-world impact of mixed contaminant exposure.
Metabolomics insights into the combined effects of boscalid and polystyrene microplastics on earthworms (Eisenia fetida): The critical role of pesticide dose and microplastics size
Researchers studied the combined effects of the pesticide boscalid and polystyrene microplastics on earthworms, finding that the interaction between the two contaminants significantly altered earthworm metabolic profiles. The severity of effects depended on both the pesticide dose and the size of the microplastic particles. The study highlights that microplastics in agricultural soils may interact with pesticides to create synergistic toxic effects on soil organisms.
Unveiling the impact of polystyrene and low-density polyethylene microplastics on arsenic toxicity in earthworms
Researchers examined how polystyrene and polyethylene microplastics interact with arsenic contamination to affect earthworms in soil. While the microplastics did not change arsenic's effects on survival, growth, or reproduction, they did increase oxidative stress and reduce the activity of protective antioxidant enzymes when combined with arsenic exposure. The study provides evidence that microplastics in contaminated soils may subtly alter how organisms handle heavy metal stress, even when survival rates appear unaffected.
Effects of polystyrene microplastics on the fitness of earthworms in an agricultural soil
Researchers exposed earthworms to polystyrene microplastics in agricultural soil at various concentrations. The study found that low concentrations had little effect, but high concentrations (1% and above) significantly inhibited growth and increased mortality, suggesting microplastic pollution poses ecological risks to soil organisms in terrestrial ecosystems.
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.
Combined effects of polyethylene microplastics and carbendazim on Eisenia fetida: A comprehensive ecotoxicological study
Researchers studied the combined effects of polyethylene microplastics and the pesticide carbendazim on earthworms and found that the two pollutants together caused worse damage than either alone. The combined exposure led to growth problems, oxidative stress, and organ damage even at lower concentrations. Since earthworms are essential for soil health and microplastics and pesticides commonly co-exist in farmland, these findings suggest that agricultural soil contamination could have cascading effects on the food system.
Ecotoxicological risk of co-exposure to fosthiazate and microplastics on earthworms (Eisenia fetida): Integrating biochemical and transcriptomic analyses
Researchers investigated the combined toxic effects of the insecticide fosthiazate and microplastics on earthworms using both biochemical and genetic analyses. They found that co-exposure increased oxidative stress, DNA damage, and disrupted metabolic pathways more severely than either pollutant alone. The study suggests that microplastics may amplify pesticide toxicity in soil organisms, raising concerns about their combined impact on soil ecosystem health.
The combined effects of polystyrene nanoplastics with nickel on oxidative stress and related toxic effects to earthworms from individual and cellular perspectives
Researchers studied the combined toxic effects of polystyrene nanoplastics and nickel on earthworms at both the individual and cellular levels. They found that nanoplastics amplified the harmful effects of nickel by increasing oxidative stress, reducing cell viability, and disrupting the balance between protective and damaging molecules in cells. The findings suggest that nanoplastics can worsen the toxicity of heavy metals already present in contaminated soils.