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Close encounters on a micro scale: microplastic sorption of polycyclic aromatic hydrocarbons and their potential effects on associated biofilm communities
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Researchers investigated the sorption of polycyclic aromatic hydrocarbons (PAHs) onto microplastics and the potential cascading effects on biofilm communities associated with those microplastics in aquatic environments. They found that evaluating microplastics in isolation underestimates their ecological impact, as co-transported PAHs can alter the composition and function of biofilm communities across different compartments of aquatic ecosystems.
The findings in our study highlight the importance of investigating contaminants such as MPs holistically, including any associated substances, to fully understand how they impact surrounding ecological systems as they traverse the different compartments of the aquatic ecosystem.
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Exploring the interplay between microplastics, polyciclic aromatic hidrocarbons and biofilms in freshwater
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Researchers explored how microplastics interact with polycyclic aromatic hydrocarbons (PAHs) in freshwater, and how both pollutants together form biofilms. The study found that microplastics can act as concentration surfaces for PAHs, potentially amplifying toxic exposure in organisms that ingest plastic particles.
Microplastics, PAHs and biofilms in freshwater
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Researchers tested how five common plastic types adsorb polycyclic aromatic hydrocarbons (PAHs) in freshwater and serve as surfaces for microbial biofilm growth. All five plastics were able to bind PAHs and support biofilms, suggesting microplastics can concentrate toxic compounds and harbor bacteria in freshwater environments.
Microplastic-Associated Biofilms and Their Role in the Fate of Microplastics in Aquatic Environment
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This review examines how microbial biofilms attached to microplastics in aquatic environments mediate the accumulation and transfer of chemical pollutants, exploring how the 'plastisphere' community influences the fate and ecotoxicological impact of microplastics and co-contaminants.
Exploring the Interaction between Microplastics, Polycyclic Aromatic Hydrocarbons and Biofilms in Freshwater
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Researchers investigated the adsorption of benzo(a)pyrene and pyrene by five microplastic types in freshwater over 3 and 30 days, finding that polypropylene was the most efficient adsorbent while polystyrene was the least efficient for benzo(a)pyrene. The study also examined how bacterial biofilms on microplastics, including pathogenic species such as Escherichia coli and Klebsiella pneumoniae, interact with PAH adsorption dynamics.
Effects of microplastic sorption on microbial degradation of halogenated polycyclic aromatic hydrocarbons in water
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Researchers investigated how microplastics act as carriers for halogenated polycyclic aromatic hydrocarbons (HPAHs) in water and whether this sorption affects microbial degradation of these dioxin-like compounds. They found that microplastic-sorbed HPAHs had reduced bioavailability to degrading bacteria, potentially slowing natural breakdown of these toxic pollutants.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.