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61,005 resultsShowing papers similar to Impact of microplastics and aged microplastics on the toxicity of emerging contaminants in the soil
ClearAlteration potential of Propylene microplastic on soil toxicity: impact of organic matter and aging of microplastics
Researchers examined the combined ecotoxic effects of polypropylene (PP) microplastics, UV-aged PP microplastics, cadmium, nickel, and biosolid amendments on the soil organism Enchytraeus crypticus, finding that aged PP increased metal toxicity compared to virgin PP, while biosolid addition reduced combined metal-microplastic toxicity in reproductive endpoint assays.
Bioassays to assess the ecotoxicological impact of polyethylene microplastics and two organic pollutants, simazine and ibuprofen
Researchers assessed the ecotoxicological impact of polyethylene microplastics combined with the organic pollutants simazine and ibuprofen using bioassays in terrestrial ecosystems, finding measurable toxic effects on soil organisms from both the microplastics and co-contaminants.
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.
Microplastics and Co‐Contaminants in Soil: A Review of Combined Ecological Impact and Emerging Remediation Strategies
This review synthesizes evidence on how microplastics in soil interact with co-contaminants including heavy metals, pharmaceuticals, and persistent organic pollutants, finding that microplastics modify the mobility, bioavailability, and toxicity of these co-occurring pollutants in ways that current risk assessments do not fully capture.
Effects of co-loading of polyethylene microplastics and ciprofloxacin on the antibiotic degradation efficiency and microbial community structure in soil
Researchers studied how polyethylene microplastics and the antibiotic ciprofloxacin together affect soil microbial communities and antibiotic degradation. The study found that co-loading of microplastics with antibiotics altered microbial community structure and affected the rate of antibiotic degradation in soil, suggesting microplastic contamination may influence how soils process pharmaceutical pollutants.
Polyethylene microplastics enhanced the toxicity of diisobutyl phthalate in saline soil microorganisms
Researchers examined whether polyethylene microplastics alter the toxicity of the plasticizer diisobutyl phthalate (DiBP) on saline soil microorganisms by testing combinations of both pollutants at two concentrations. PE microplastics enhanced DiBP toxicity to soil microbial communities, suggesting that co-contamination of saline agricultural soils poses greater risks than either pollutant alone.
Aged microplastics enhance their interaction with ciprofloxacin and joint toxicity on Escherichia coli
Researchers found that aged microplastics showed enhanced adsorption of the antibiotic ciprofloxacin compared to pristine particles, and that their combined exposure produced greater toxicity to E. coli at the molecular level than either pollutant alone.
A critical review on interaction of microplastics with organic contaminants in soil and their ecological risks on soil organisms
This review examines how microplastics interact with organic pollutants in soil, including pesticides and industrial chemicals, and the combined risks they pose to soil ecosystems. Researchers found that microplastics can adsorb organic contaminants through various mechanisms and alter their movement, breakdown, and toxicity in soil. The combined effects on soil animals, plants, and microorganisms can be either synergistic or antagonistic, making risk assessment more complex than studying either pollutant 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.
Microplastics inAgricultural Soils: Sources, Fate,and Interactions with Other Contaminants
This review examines microplastics as emerging soil contaminants, focusing on their interactions with co-occurring pollutants such as heavy metals, pesticides, and antibiotics, and assessing the compound toxic risks these combinations pose to agricultural ecosystems and food safety.
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.
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.
Aging in soil increases the disturbance of microplastics to the gut microbiota of soil fauna
Researchers compared how fresh versus soil-aged microplastics affect the gut bacteria of small soil-dwelling worms called enchytraeids. They found that microplastics that had aged in soil for several months caused significantly greater disruption to the animals' gut microbiome than fresh particles. The aging process released chemical additives and encouraged biofilm growth on the plastic surfaces, making aged microplastics more biologically active and potentially more harmful to soil organisms.
Effect of emerging contaminants on soil microbial community composition, soil enzyme activity, and strawberry plant growth in polyethylene microplastic-containing soils
Researchers found that emerging contaminants altered soil microbial community composition and enzyme activity, but these effects were suppressed when HDPE microplastics were also present in the soil, suggesting microplastics may modulate how soils respond to chemical contaminants.
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.
Ecotoxicological effects of polyethylene microplastics and lead (Pb) on the biomass, activity, and community diversity of soil microbes
A soil experiment found that polyethylene microplastics made lead (a toxic heavy metal) more available in soil and worsened its harmful effects on soil microorganisms. The combination reduced beneficial enzyme activity, lowered microbial efficiency, and shifted the soil microbial community, suggesting that microplastic pollution in contaminated soils could amplify heavy metal toxicity in ways that ultimately affect food crops and human health.
Impacts of Nano- and Microplastic Contamination on Soil Organisms and Soil–Plant Systems
Nano- and microplastic contamination was found to negatively affect soil organic matter dynamics and the activity of soil organisms. The research adds to growing evidence that plastic particles impair the biological processes that maintain soil health and fertility.
Microplastics as Emerging Soil Pollutants
This review covers how microplastics enter and accumulate in soils, their effects on soil health, microbial communities, soil fauna, and plant growth, and the implications of widespread soil plastic contamination for ecosystem function.
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.
Presence of microplastics enhanced the toxicity of silver nanoparticles on the collembolan Folsomia candida
Researchers examined the combined effects of polyvinyl chloride microplastics and silver nanoparticles on the soil organism Folsomia candida over 28 days. They found that co-exposure produced synergistic toxic effects, reducing reproduction by over 50% and increasing silver accumulation in the organisms by nearly 88% compared to silver nanoparticle exposure alone. The study suggests that the presence of microplastics in soil can amplify the toxicity of other contaminants by enhancing their bioaccumulation.
A Systematic Review of Nano- and Microplastic (NMP) Influence on the Bioaccumulation of Environmental Contaminants: Part I—Soil Organisms
This systematic review investigates whether microplastics and nanoplastics help other environmental contaminants like heavy metals and pesticides accumulate in soil organisms. The research finds that the presence of plastic particles can change how much of these pollutants earthworms and other soil creatures absorb. This matters because contaminants that build up in soil organisms can eventually work their way into the food we grow and eat.
Bioavailability of pyrene in soil affected by polylactic acid and polystyrene microplastics and their toxic effects on earthworms (Eisenia fetida)
Researchers investigated how polylactic acid and polystyrene microplastics interact with the pollutant pyrene in soil and affect earthworm health. They found that while microplastics alone did not break down the earthworms' antioxidant defenses, combining them with pyrene produced more severe toxic effects including neurotoxicity and disruption of gut microbiota. The study suggests that microplastics in contaminated soils can amplify the harmful effects of other pollutants on soil organisms.
Unveiling the Microplastic Menace
This review addresses the growing microplastic menace -- particles 5 mm and smaller -- focusing on how different polymer types interact with soil pollutants and accumulate across environmental compartments. The authors discuss the compounding ecological risks from microplastic co-contamination with heavy metals and other soil pollutants.
Role of Biodegradable and Non-Biodegradable Microplastic in Modulating the toxicological Effects of Organic Pollutants in the Soil Organism Folsomia candida
Researchers exposed soil-dwelling springtail insects to combinations of microplastics and agricultural chemicals and found that biodegradable plastics (PBAT- and starch-based) made the toxicity of pesticides and veterinary drugs significantly worse, while conventional polyethylene plastic did not — raising concerns that "eco-friendly" biodegradable plastics may actually increase chemical risks in farming soils.