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Enhanced desorption of persistent organic pollutants from microplastics under simulated physiological conditions

Environmental Pollution 2013 1037 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Adil Bakir, Adil Bakir, Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Adil Bakir, Adil Bakir, Adil Bakir, Adil Bakir, Adil Bakir, Richard C. Thompson Adil Bakir, Richard C. Thompson Adil Bakir, Adil Bakir, Adil Bakir, Adil Bakir, Adil Bakir, Adil Bakir, Adil Bakir, Richard C. Thompson Adil Bakir, Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Steven J. Rowland, Steven J. Rowland, Steven J. Rowland, Steven J. Rowland, Steven J. Rowland, Richard C. Thompson Steven J. Rowland, Richard C. Thompson Steven J. Rowland, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Adil Bakir, Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Adil Bakir, Adil Bakir, Richard C. Thompson Adil Bakir, Adil Bakir, Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Adil Bakir, Adil Bakir, Richard C. Thompson Adil Bakir, Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Adil Bakir, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson

Summary

Researchers tested how persistent organic pollutants desorb from microplastics under conditions that simulate the digestive systems of warm-blooded marine animals versus cold-blooded fish. They found that gut surfactants and warmer body temperatures dramatically increased the release of pollutants from the plastics, with up to 30 times more chemicals released under warm-blooded conditions. The study suggests that marine mammals and seabirds may face greater chemical exposure risks from ingested microplastics than previously assumed.

Polymers
Study Type Environmental

Microplastics have the potential to uptake and release persistent organic pollutants (POPs); however, subsequent transfer to marine organisms is poorly understood. Some models estimating transfer of sorbed contaminants to organisms neglect the role of gut surfactants under differing physiological conditions in the gut (varying pH and temperature), examined here. We investigated the potential for polyvinylchloride (PVC) and polyethylene (PE) to sorb and desorb (14)C-DDT, (14)C-phenanthrene (Phe), (14)C-perfluorooctanoic acid (PFOA) and (14)C-di-2-ethylhexyl phthalate (DEHP). Desorption rates of POPs were quantified in seawater and under simulated gut conditions. Influence of pH and temperature was examined in order to represent cold and warm blooded organisms. Desorption rates were faster with gut surfactant, with a further substantial increase under conditions simulating warm blooded organisms. Desorption under gut conditions could be up to 30 times greater than in seawater alone. Of the POP/plastic combinations examined Phe with PE gave the highest potential for transport to organisms.

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