Quantifying the trophic transfer of sub-micron plastics in an assembled food chain

Fazel Abdolahpur Monikh*, Sille Holm, Raine Kortet, Mandar Bandekar, Jukka Kekäläinen, Arto Koistinen, Jari T.T. Leskinen, Jarkko Akkanen, Hannu Huuskonen, Anu Valtonen, Lan Dupuis, Willie Peijnenburg, Iseult Lynch, Eugenia Valsami-Jones, Jussi V.K. Kukkonen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Sub-micron plastics (SMPs, size < 1 µm) are potentially taken up by plants. Serious concerns arise that how far SMPs can transfer from plants into food webs. Here, we show that lettuce takes up 250 nm gadolinium labelled polystyrene (PS) and polyvinyl chloride (PVC) SMPs from the soil. The polymer type influences the biodistribution of the particles in lettuce (roots and leaves) and the number of particles transferred from the plants to insects feeding on the treated lettuce. The SMPs were further transferred from insects to insect-feeding fish to accumulate mostly in the fish liver. No Gd was released from the particles upon biotransformation (formation of protein corona on the particles) in the plants or insects. However, Gd ion was detected in fish fed with PS-SMP treated insects, indicating the possible degradation of the particles. No biomagnification in fish was detected for either type of SMPs. We conclude that plastic particles can potentially transfer from soil into food webs and the chemical composition of plastics influences their biodistribution and trophic transfer in organisms.

Original languageEnglish
Article number101611
JournalNano Today
Volume46
DOIs
Publication statusPublished - 9 Sept 2022

Bibliographical note

Funding Information:
This study was funded by University of Eastern Finland water program, which is co-funded by the Saastamoinen Foundation, Wihuri Foundation and Olvi Foundation. The study was also partially funded by the European Union's Horizon 2020 research and innovation program, via the projects PLASTICSFATE (Grant Agreement number 965367) and RiskGONE (814425). I.L. acknowledges funding from the Leverhulme Trust grant “PlasticRivers”, R.K. acknowledges funding from the SUREAQUA, and J.K. from Academy of Finland (project 308485). We would like to thank Pyry Pihlasvaara and Marja Noponen for their help in performing the laboratory work. We also thank Virpi Miettinen for helping with sample preparation for SEM and TEM and Dr. Emilia Uurasjärvi for help in determining the SMPs chemical composition using Raman Spectroscopy. We would also like to thank Pasi Yli-Pirilä for his help in performing the ICP-MS measurements. We are grateful to SIB Labs Kuopio Electron Microscopy Facility, part of Biocenter Kuopio and Biocenter Finland for technical and financial assistance. F.A.M. designed the experiments, conceptualized, supervised, wrote and reviewed the study. F.A.M. J.K. J.A. R.K. and M.B. performed the soil-plant experiment. F.A.M. S.H. and A.V. performed the plant-insect experiment. F.A.M. R.K. H.H. and L.D. performed the insect-fish experiment. F.A.M. M.B. S.H. R.K. and L.D. studied the biotransformation of the particles in different physiological media. F.A.M. W.J.G. and M.P. designed and characterized the SMPs. F.A.M. and M.B. performed the spICP-MS and ICP-MS measurement. F.A.M. J.L. and A.K. performed the sample preparation for electron microscopy (SEM, TEM) and performed the imaging using SEM and TEM. F.A.M. and A.K. characterized the particles in terms of chemical compositions. J.V.K.K. W.J.G. M.P. I.L. and E.V.J. contributed to conceptualizing, designing the experiment, supervising, writing, and editing the paper. R.K. J.K. J.A. and H.H. contributed to the design of the experiment and editing the paper. The authors declare no competing interests.

Funding Information:
This study was funded by University of Eastern Finland water program, which is co-funded by the Saastamoinen Foundation, Wihuri Foundation and Olvi Foundation . The study was also partially funded by the European Union’s Horizon 2020 research and innovation program, via the projects PLASTICSFATE (Grant Agreement number 965367 ) and RiskGONE ( 814425 ). I.L. acknowledges funding from the Leverhulme Trust grant “PlasticRivers”, R.K. acknowledges funding from the SUREAQUA, and J.K. from Academy of Finland (project 308485 ). We would like to thank Pyry Pihlasvaara and Marja Noponen for their help in performing the laboratory work. We also thank Virpi Miettinen for helping with sample preparation for SEM and TEM and Dr. Emilia Uurasjärvi for help in determining the SMPs chemical composition using Raman Spectroscopy. We would also like to thank Pasi Yli-Pirilä for his help in performing the ICP-MS measurements. We are grateful to SIB Labs Kuopio Electron Microscopy Facility, part of Biocenter Kuopio and Biocenter Finland for technical and financial assistance.

Publisher Copyright:
© 2022 The Author(s)

Keywords

  • Biodistribution
  • Gadolinium labelled SMP
  • Method development
  • Nanoplastics
  • Polystyrene
  • Polyvinyl chloride

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biomedical Engineering
  • Materials Science(all)
  • Pharmaceutical Science

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