Evidence of microplastic-mediated transfer of PCB-153 to sea urchin tissues using radiotracers - Archive ouverte HAL Access content directly
Journal Articles Marine Pollution Bulletin Year : 2022

Evidence of microplastic-mediated transfer of PCB-153 to sea urchin tissues using radiotracers

Marine Pyl
  • Function : Author
Angus Taylor
  • Function : Author
François Oberhänsli
  • Function : Author
Peter Swarzenski
  • Function : Author
Marc Besson
Bruno Danis
  • Function : Author
Marc Metian
  • Function : Author

Abstract

The present study reports the first experimental microplastic-mediated transfer of a key PCB congener into adult specimens of the sea urchin Paracentrotus lividus. Three experiments were conducted to assess whether ¹⁴C-PCB-153 adsorbed onto negatively buoyant MPs (500-600 µm) is bioavailable to the sea urchin : (1) exposure to a low concentration of ¹⁴C-PCB-153 sorbed onto a high number of virgin MPs ("lowPCB highMP" experiment), (2) exposure to a high concentration of ¹⁴C-PCB-153 sorbed onto a relatively low number of virgin MPs ("highPCB lowMP" experiment), and (3) exposure to a low concentration of ¹⁴C-PCB-153 sorbed onto a relatively low number of aged MP ("lowPCB lowMP" experiment). Results showed that the transfer of ¹⁴C-PCB-153 from MPs to sea urchin tissues occurred in each of the three 15-day experiments, suggesting that MPs located on the seafloor may act as vectors of PCB-153 to sea urchins even during short-term exposure events.
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hal-03948652 , version 1 (20-01-2023)

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Marine Pyl, Angus Taylor, François Oberhänsli, Peter Swarzenski, Marc Besson, et al.. Evidence of microplastic-mediated transfer of PCB-153 to sea urchin tissues using radiotracers. Marine Pollution Bulletin, 2022, 185, pp.114322. ⟨10.1016/j.marpolbul.2022.114322⟩. ⟨hal-03948652⟩
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