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61,005 resultsShowing papers similar to Ingestion and toxicity of microplastics in the freshwater gastropod Lymnaea stagnalis: No microplastic-induced effects alone or in combination with copper
ClearInfluence of polystyrene microplastic and nanoplastic on copper toxicity in two freshwater microalgae
Researchers studied how polystyrene microplastics and nanoplastics affect the toxicity of copper to two freshwater microalgae species over extended exposure periods. They found that microplastics generally reduced copper toxicity by adsorbing copper ions, while nanoplastics had more variable effects depending on concentration and algal species. The study highlights that the size of plastic particles plays an important role in how they modify the bioavailability and toxicity of heavy metals in aquatic environments.
Assessment of the Effects of Environmental Concentrations of Microplastics on the Aquatic Snail Potamopyrgus antipodarum
Researchers examined the effects of environmentally relevant microplastic concentrations on the freshwater snail Potamopyrgus antipodarum, assessing impacts on this benthic invertebrate in an understudied freshwater ecosystem context.
The effect of microplastics and co-occurring toxicants on survival and life-history traits of the cladoceran Moina macrocopa
Researchers tested the effects of four types of microplastics on the freshwater cladoceran Moina macrocopa, both alone and in combination with copper, insecticides, and diesel fuel. The study found that only polystyrene-based microplastics induced direct toxicity, while other polymer types modulated the toxicity of co-occurring chemical contaminants in varying ways.
Combined effects of polystyrene microplastics and natural organic matter on the accumulation and toxicity of copper in zebrafish
Researchers investigated the combined effects of polystyrene microplastics and natural organic matter on copper accumulation and toxicity in zebrafish. They found that microplastics increased copper accumulation in the liver and gut, and that natural organic matter further amplified this effect in a size-dependent manner. The study suggests that microplastics in natural waters can interact with dissolved organic matter and metals to create more harmful exposure conditions for aquatic organisms.
Combined effects of polystyrene microplastics and copper on the growth and nutritional profile of Raphidocelis subcapitata
Researchers investigated the combined effects of polystyrene microplastics and copper on the growth and nutritional profile of the freshwater green alga Raphidocelis subcapitata, examining whether co-exposure to these two contaminants produces interactive toxicity effects beyond individual exposures.
Hazardous or not – Are adult and juvenile individuals of Potamopyrgus antipodarum affected by non-buoyant microplastic particles?
Researchers exposed adult and juvenile mud snails (Potamopyrgus antipodarum) to a mixture of five common polymer types at low and high dietary doses, finding no effects on morphology, reproduction, or development to maturity — suggesting that particle size and chemical composition may matter more than polymer presence alone in determining microplastic harm to freshwater invertebrates.
Effects of polystyrene microplastics on copper toxicity to the protozoan Euglena gracilis: emphasis on different evaluation methods, photosynthesis, and metal accumulation
Polystyrene microplastics altered the toxicity of copper to the protozoan Euglena gracilis, with effects on photosynthesis and metal accumulation showing that microplastics can either enhance or reduce copper toxicity depending on exposure concentration and duration.
Antagonistic effects of copper and microplastics in single and binary mixtures on development and reproduction in the freshwater cladoceran Daphnia carinata
Combined exposure of the freshwater cladoceran Daphnia carinata to polyethylene microplastics and copper showed antagonistic effects on survival and reproduction, with microplastics reducing the bioavailability of copper through adsorption, resulting in lower combined toxicity than copper alone at some concentrations.
Single and combined toxicity of polystyrene nanoplastics and copper on Platymonas helgolandica var. tsingtaoensis: Perspectives from growth inhibition, chlorophyll content and oxidative stress
Researchers investigated the single and combined toxicity of polystyrene nanoplastics and copper on the marine microalga Platymonas helgolandica. The study found that copper alone inhibited growth in a dose-dependent manner, while nanoplastics modified copper's bioavailability and altered the combined toxic response. The results suggest that the interaction between nanoplastics and heavy metals can produce complex toxicity patterns that differ from individual exposures.
Uptake, Elimination and Effects of Cosmetic Microbeads on the Freshwater Gastropod Biomphalaria glabrata
Researchers investigated uptake, elimination, and effects of cosmetic polyethylene microbeads on freshwater snails, finding that snails readily ingested and eliminated microbeads but showed limited adverse effects during short-term and long-term exposure periods.
The effects of polystyrene microparticles on the environmental availability and bioavailability of As, Cd and Hg in soil for the land snail Cantareus aspersus
Researchers exposed land snails to soil contaminated with both polystyrene microplastics and toxic metals including arsenic, cadmium, and mercury. They found that while microplastics had limited effects on overall metal availability in soil, they did alter the speed and pattern of metal uptake into snail tissues. The study suggests that microplastics may subtly change how organisms absorb environmental contaminants, even when they do not dramatically change the total amount available.
Assessment of intake and effect of microplastics and its combination with metals in experimental (Daphnia magna) and environmental conditions (freshwater fish)
Researchers assessed the intake and effects of microplastics and their combination with metals using Daphnia magna as an experimental model and freshwater fish under environmental conditions, investigating how microplastics adsorb and transport harmful metals in freshwater systems.
Microplastics and copper effects on the neotropical teleost Prochilodus lineatus: Is there any interaction?
Researchers exposed the neotropical fish Prochilodus lineatus to polyethylene microplastics and copper separately and together, finding that microplastics alone caused oxidative stress and genotoxic effects, while combined exposure with copper did not consistently amplify harm compared to either stressor alone.
Combined effects of polystyrene microplastics and copper on antioxidant capacity, immune response and intestinal microbiota of Nile tilapia (Oreochromis niloticus)
Researchers examined the combined effects of polystyrene microplastics and copper on Nile tilapia and found that co-exposure increased copper accumulation in the liver and caused tissue damage in multiple organs. High concentrations of both contaminants together triggered oxidative stress, inflammation, and shifts in intestinal microbial communities. The study suggests that microplastics can worsen the toxic effects of heavy metals on freshwater fish.
Combined effects of nanoplastics and copper on the freshwater alga Raphidocelis subcapitata
Researchers found that carboxylated polystyrene nanoplastics do not adsorb copper ions or alter copper toxicity to freshwater algae in short- or long-term tests, but that nanoplastics do attach to algal cell walls and cause morphological changes — highlighting the importance of prolonged exposures and multiple endpoints in nanoplastic toxicity assessments.
Ingestion and Toxicity of Polystyrene Microplastics in Freshwater Bivalves
Researchers investigated microplastic ingestion in the freshwater mussel Dreissena polymorpha using polystyrene spheres of various sizes. They found that mussels rapidly ingested microplastics and that body burden was influenced by exposure time, body size, food abundance, and microplastic concentration, providing important baseline data on how freshwater bivalves interact with microplastic pollution.
Quantifying Effects and Ingestion of Several Pristine Microplastics in Two Early Life Stages of Freshwater Mussels
Researchers tested whether several types of pristine microplastics harm two early life stages of freshwater mussels, species that are already imperiled in North America. The study found no acute toxicity to larvae or juveniles from any of the plastics tested, though the mussels did ingest the particles in a concentration-dependent manner and were able to expel them during a depuration period.
Combined effects of microplastics and copper on antioxidant capacity, gut microbiome, and metabolomics of Pseudorasbora parva
Researchers studied the combined effects of microplastics and copper on the freshwater fish Pseudorasbora parva, examining antioxidant capacity, gut microbiota, and metabolic responses. They found that the presence of microplastics alongside copper actually reduced copper accumulation in tissues and lessened oxidative damage compared to copper exposure alone. The study suggests that while microplastics can alter the toxicity profile of metals in fish, the interactions are complex and involve metabolic adjustments that balance cellular repair and energy expenditure.
Impacts of PVC microplastic ingestion on Biomphalaria alexandrina: behavioral, physiological, and histological responses
Researchers exposed the freshwater snail Biomphalaria alexandrina to PVC microplastics and measured behavioral, physiological, and histological outcomes. They found concentration-dependent harm including reduced feeding and survival, oxidative stress, and damage to digestive glands.
Antidote or Trojan horse for submerged macrophytes: Role of microplastics in copper toxicity in aquatic environments
Researchers investigated whether polyethylene microplastics act as an antidote or a Trojan horse for copper toxicity to submerged aquatic plants. The study found that microplastics reduced dissolved copper concentrations through adsorption but could then release copper-loaded particles that were taken up by plants. The results suggest that microplastics may initially reduce copper toxicity in water but ultimately serve as carriers that deliver copper directly into plant tissues.
Exploring the Role of Polystyrene Microplastics in Cu Binding in Sea Surface Waters: An Experimental Perspective for Future Research
The role of polystyrene microplastics in binding copper (Cu) and altering its environmental mobility and toxicity was investigated, finding that microplastics can both adsorb and release copper depending on environmental conditions. This has implications for how microplastics modulate heavy metal hazards in contaminated environments.
Effects of microplastics and natural particles on the aquatic invertebrate Daphnia magna under different dietary quality scenarios
Researchers exposed Daphnia magna to both natural particles—including sediment, algae, and biofilm—and polystyrene microplastics to compare their effects, finding that natural particles caused similar or greater harm than microplastics at equivalent concentrations, highlighting the need for environmental context in MP toxicity studies.
Effect of microplastics and microplastic-metal combinations on growth and chlorophyll a concentration of Chlorella vulgaris
Researchers tested the effects of polystyrene microplastics alone and in combination with metals (copper, zinc, manganese) on the freshwater microalga Chlorella vulgaris. The study found that low microplastic concentrations had no significant impact, but higher concentrations reduced algal growth and chlorophyll content, with metal-microplastic combinations producing more pronounced effects.
Combined Effect of Polystyrene Particles and Copper Ions on the Vital Parameters of Daphnia Magna in a Series of Generations
Researchers studied the combined effects of polystyrene microplastics and copper ions on Daphnia magna over four generations using both short-term and continuous exposure designs. Toxicity was greater under combined exposure and increased across generations, suggesting cumulative intergenerational harm from mixed pollutant stress.