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20 resultsShowing papers similar to Distinct polymer-dependent sorption of persistent pollutants associated with Atlantic salmon farming to microplastics
ClearMicroplastics in feed affect the toxicokinetics of persistent halogenated pollutants in Atlantic salmon
Atlantic salmon fed diets where persistent organic pollutants were pre-sorbed onto 125-250 micron microplastics accumulated more POPs in their fillets than fish fed contaminated feed without microplastics. Depuration was also slower for several contaminants in the microplastic-exposed group, suggesting that microplastics alter toxicokinetics in fish.
Enrichment of Persistent Organic Pollutants in Microplastics from Coastal Waters
Researchers quantified how microplastics concentrate persistent organic pollutants compared to suspended particulate matter in coastal seawater. They found that the concentrating effect of microplastics on these pollutants was one to two orders of magnitude greater than that of natural suspended particles. The study provides precise measurements of enrichment factors, suggesting that microplastics may serve as significant carriers of toxic organic chemicals in marine environments.
Adsorption and Desorption Behaviour of Polychlorinated Biphenyls onto Microplastics’ Surfaces in Water/Sediment Systems
Researchers evaluated the adsorption and desorption behavior of polychlorinated biphenyls (PCBs) onto polystyrene, polyethylene, and polyethylene terephthalate microplastics of varying sizes in marine water/sediment systems. Results showed that polymer type and particle size influenced PCB binding capacity, with microplastics acting as potential vectors for transferring persistent organic pollutants to marine biota through the food chain.
Transport of persistent organic pollutants: Another effect of microplastic pollution?
This review examines how microplastics act as vectors for persistent organic pollutants (POPs) in aquatic environments, covering the physical and chemical factors governing pollutant adsorption and desorption. The authors discuss how interactions between microplastics and POPs vary with polymer type, particle properties, and environmental conditions, and when these interactions may result in toxic effects on aquatic organisms.
Mechanistic Insights into PFAS Adsorption on Microplastics: Effects of Contaminant Properties and Water Chemistry
Researchers investigated how two widely detected PFAS compounds, PFOS and PFOA, adsorb onto five common types of microplastics in aquatic environments. The study found that contaminant properties and water chemistry significantly influence adsorption behavior, confirming that microplastics can serve as carriers for PFAS transport in waterways.
Analysis of the Interaction between Microplastics and Pops in Freshwater Environments ‒ An Experimental Study Under Laboratory Conditions
Researchers investigated the adsorption of persistent organic pollutants (POPs) onto seven common plastic polymer types (PET, PS, PP, PVC, AC, PE, PA) in freshwater, finding correlations between pollutant concentrations and microplastic type and identifying synergistic behaviors relevant to fragmentation and contamination dynamics.
Exploring sorption of pesticides and PAHs in microplastics derived from plastic mulch films used in modern agriculture
Researchers investigated how microplastics derived from agricultural mulch films sorb pesticides and polycyclic aromatic hydrocarbons, finding significant uptake that could facilitate transfer of these contaminants through farming environments.
Sorption of representative organic contaminants on microplastics: Effects of chemical physicochemical properties, particle size, and biofilm presence
This study examined how organic pollutants like flame retardants and industrial chemicals attach to microplastics in saltwater conditions. Smaller microplastic particles absorbed more contaminants per unit weight, and natural biofilms growing on the plastic surfaces changed how much pollution they could carry. The findings help explain how microplastics act as carriers of toxic chemicals through the environment and potentially into the food chain.
Adsorption of perfluoroalkyl substances on polyamide microplastics: Effect of sorbent and influence of environmental factors
Researchers studied how perfluoroalkyl substances (PFAS), a group of persistent industrial chemicals, bind to polyamide microplastics in water. They found that smaller microplastic particles absorbed dramatically more PFAS than larger ones, and that water chemistry conditions like pH and salinity influenced the process. The findings suggest microplastics can concentrate harmful chemicals and potentially increase human and wildlife exposure to PFAS in contaminated environments.
Different partition of polycyclic aromatic hydrocarbon on environmental particulates in freshwater: Microplastics in comparison to natural sediment
This study investigated how the polycyclic aromatic hydrocarbon phenanthrene partitions between water and three common plastic types, finding that polymer composition strongly influences sorption behavior. The results help explain how microplastics act as vectors for toxic organic compounds in aquatic environments.
Sorption of alkylphenols and estrogens on microplastics in marine conditions
Researchers investigated the sorption of six endocrine-disrupting chemicals — including alkylphenols and estrogens — onto microplastics under marine conditions, supporting the hypothesis that microplastics act as a secondary contamination vector for aquatic organisms by concentrating pollutants.
Sorption of Pyrene and Fluoranthene onto Common Microplastics Under Freshwater Conditions
Researchers investigated how two common polycyclic aromatic hydrocarbons, pyrene and fluoranthene, bind to six different types of microplastic polymers under freshwater conditions. The study found significant differences in sorption capacity across polymer types, confirming that microplastics can act as vectors for transporting harmful organic pollutants through aquatic environments.
Sorption and desorption kinetics of PFOS to pristine microplastic
Researchers investigated how the persistent pollutant PFOS sorbs onto polyethylene microplastic particles of different sizes over six months. They found that smaller microplastic particles adsorbed more PFOS due to their greater surface area, and that PFOS could be released from the microplastics under simulated fish gut conditions. The findings suggest that microplastics may act as carriers of chemical pollutants into the digestive systems of aquatic organisms.
Microplastic Intake, Its Biotic Drivers, and Hydrophobic Organic Contaminant Levels in the Baltic Herring
Researchers investigated microplastic ingestion and hydrophobic organic contaminant levels in Baltic herring along the Swedish west coast, finding microplastics in 22.3% of fish with large geographic variability, though no significant correlation was found between microplastic burden and contaminant concentrations in muscle tissue.
Interactions of microplastics with contaminants in freshwater systems: a review of characteristics, bioaccessibility, and environmental factors affecting sorption
This review examined how microplastics act as vectors for environmental contaminants in freshwater systems, analyzing the characteristics, bioaccessibility, and environmental factors that influence pollutant sorption onto plastic particles and their potential transfer to organisms including humans.
Partitioning of chemical contaminants to microplastics: Sorption mechanisms, environmental distribution and effects on toxicity and bioaccumulation
This review critically examines how chemical contaminants like persistent organic pollutants and heavy metals sorb onto microplastic surfaces in the environment. Researchers found that while microplastics can concentrate pollutants at levels far above surrounding water, the actual contribution of microplastics to contaminant transfer into organisms may be less significant than direct exposure from water and food. The study calls for more realistic experimental designs to clarify the true risk.
The implications of water extractable organic matter (WEOM) on the sorption of typical parent, alkyl and N/O/S-containing polycyclic aromatic hydrocarbons (PAHs) by microplastics
This study explored how dissolved organic matter in water affects the ability of microplastics to adsorb persistent organic pollutants like pesticides, finding that organic matter significantly influences microplastics' role as chemical carriers. The results have implications for understanding how microplastics transfer toxic chemicals through aquatic ecosystems.
Toxicity assessment of pollutants sorbed on microplastics using various bioassays on two fish cell lines
Researchers collected microplastic samples from ocean expeditions and tested their toxicity using two fish cell lines, finding that cell lines differed in sensitivity and that microplastics with sorbed pollutants were toxic to cells. The results suggest that real-world microplastics carrying accumulated chemical pollutants pose a chemical toxicity risk to marine organisms beyond just the physical effects of ingesting plastic.
Microplastics and organic contaminants: Investigation of the sorption process on different polymer types
Researchers investigated sorption of organic contaminants onto microplastics collected from environmental samples, finding that real-world MPs had different sorption capacities than laboratory-prepared particles due to surface aging, biofouling, and co-sorption of natural organic matter.
Influence of microplastics on nutrients and metal concentrations in river sediments
Researchers investigated how microplastics influence nutrient and metal concentrations in river sediments, finding that microplastics alter the distribution of pollutants through their capacity to adsorb contaminants and support biofilm formation on their hydrophobic surfaces.