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Microplastic-mediated transport of PCBs? A depuration study with Daphnia magna

PLoS ONE 2019 66 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Elena Gorokhova Elena Gorokhova Martin Ogonowski, Zandra Gerdes, Martin Ogonowski, Zandra Gerdes, Zandra Gerdes, Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Elena Gorokhova Martin Ogonowski, Martin Ogonowski, Zandra Gerdes, Elena Gorokhova Elena Gorokhova Martin Ogonowski, Zandra Gerdes, Margaretha Adolfsson‐Erici, Martin Ogonowski, Martin Ogonowski, Elena Gorokhova Martin Ogonowski, Martin Ogonowski, Elena Gorokhova Zandra Gerdes, Margaretha Adolfsson‐Erici, Martin Ogonowski, Andreas Barth, Elena Gorokhova Elena Gorokhova Elena Gorokhova Andreas Barth, Elena Gorokhova Elena Gorokhova Elena Gorokhova Andreas Barth, Andreas Barth, Inna Nybom, Inna Nybom, Inna Nybom, Elena Gorokhova Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Caroline Ek, Elena Gorokhova Elena Gorokhova Elena Gorokhova Andreas Barth, Elena Gorokhova Andreas Barth, Elena Gorokhova Elena Gorokhova Zandra Gerdes, Caroline Ek, Zandra Gerdes, Margaretha Adolfsson‐Erici, Margaretha Adolfsson‐Erici, Margaretha Adolfsson‐Erici, Elena Gorokhova Margaretha Adolfsson‐Erici, Elena Gorokhova Elena Gorokhova Zandra Gerdes, Elena Gorokhova Elena Gorokhova Andreas Barth, Martin Ogonowski, Andreas Barth, Elena Gorokhova Elena Gorokhova Martin Ogonowski, Martin Ogonowski, Elena Gorokhova Martin Ogonowski, Elena Gorokhova Elena Gorokhova

Summary

Researchers tested whether microplastics could help remove PCBs from the water flea Daphnia magna, finding that only one PCB congener was cleared more efficiently with microplastic exposure while most others were unaffected. The study suggests microplastics have limited value as a depuration tool for PCB-contaminated zooplankton under environmentally relevant conditions.

Models

Daphnia

The role of microplastic (MP) as a carrier of persistent organic pollutants (POPs) to aquatic organisms has been a topic of debate. However, the reverse POP transport can occur if relative contaminant concentrations are higher in the organism than in the microplastic. We evaluated the effect of microplastic on the PCB removal in planktonic animals by exposing the cladoceran Daphnia magna with a high body burden of polychlorinated biphenyls (PCB 18, As the endpoints, we used PCB body burden, growth, fecundity and elemental composition (%C and %N) of the daphnids. In the daphnids fed with microplastic, PCB 209 was removed more efficiently, while there was no difference for any other congeners and PCBs between the microplastic-exposed and control animals. Also, higher sizespecific egg production in the animals carrying PCB and receiving food mixed with microplastics was observed. However, the effects of the microplastic exposure on fecundity were of low biological significance, because the PCB body burden and the microplastic exposure concentrations were greatly exceeding environmentally relevant concentrations.

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