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Comparing the effects of pristine and UV-VIS aged microplastics: Behavioural response of model terrestrial and freshwater crustaceans.
Zidar, Primoz; Kühnel, Dana; Skapin, Andrijana Sever; Skalar, Tina; Drobne, Damjana; Skrlep, Luka; Music, Branka; Jemec Kokalj, Anita.
Afiliación
  • Zidar P; University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, Ljubljana SI-1000, Slovenia.
  • Kühnel D; Helmholtz Centre for Environmental Research - UFZ, Permoserstr. 15, Leipzig 03418, Germany.
  • Skapin AS; Slovenian National Building and Civil Engineering Institute, Dimiceva ulica 12, Ljubljana SI-1000, Slovenia; Faculty of Polymer Technology-FTPO, Ozare 19, Slovenj Gradec SI-2380, Slovenia.
  • Skalar T; University of Ljubljana, Faculty of Chemistry and Chemical Technology, Vecna pot 113, Ljubljana SI-1000, Slovenia.
  • Drobne D; University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, Ljubljana SI-1000, Slovenia.
  • Skrlep L; Slovenian National Building and Civil Engineering Institute, Dimiceva ulica 12, Ljubljana SI-1000, Slovenia.
  • Music B; Slovenian National Building and Civil Engineering Institute, Dimiceva ulica 12, Ljubljana SI-1000, Slovenia.
  • Jemec Kokalj A; University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, Ljubljana SI-1000, Slovenia. Electronic address: anita.jemec@bf.uni-lj.si.
Ecotoxicol Environ Saf ; 285: 117020, 2024 Sep 13.
Article en En | MEDLINE | ID: mdl-39276645
ABSTRACT
Physico-chemical properties of microplastics (MPs) change during weathering in the environment. There is a lack of knowledge about the effects of such environmentally relevant MPs on organisms. We investigated 1) the physico-chemical changes of MPs due to UV-VIS weathering, and 2) compared the effect of pristine and aged MPs on the behaviour of the water flea Daphnia magna and terrestrial crustacean Porcellio scaber. Dry powders of MPs were produced from widely used polymer types disposable three-layer polypropylene (PP) medical masks (inner, middle and outer), polyester textile fibres, car tires and low-density polyethylene (LDPE) bags and were subjected to accelerated ultraviolet-visible (UV-VIS) ageing. Our results show that the extent of transformation depends on the type of polymer, with PP showing the most changes, followed by LDPE, textile fibres and tire particles. Obvious fragmentation was observed in PP and textile fibres. In the case of PP, but not polyester textile fibres, changes in FTIR spectra and surface properties were observed. Tire particles and LDPE did not change in size, but clear changes were observed in their FTIR spectra. Most MPs, aged and pristine, did not affect the swimming of daphnids. The only effect observed was a significant increase in path length and swimming speed for the pristine tire particles when the recording was done with particles remaining in the wells. After transfer to a clean medium, this effect was no longer present, suggesting a physical rather than chemical effect. Similarly, woodlice showed no significant avoidance response to the MPs tested, although there was a noticeable trend to avoid soils contaminated with pristine polyester textile fibers and preference towards the soils contaminated with aged MP of the middle mask layer. Overall, the apparent changes in physico-chemical properties of MPs after accelerated ageing were not reflected in their effects on woodlice and daphnids.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Ecotoxicol Environ Saf Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Ecotoxicol Environ Saf Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos