20.500.12556/DiRROS-19502 Exploring the impacts of plastics in soil the effects of polyester textile fibers on soil invertebrates Polyester fiber is one of the most abundant types of microplastics in the environment. A major proportion of the fibers entering wastewater treatment plants end up in sewage sludge, which is used as a soil fertilizer in many countries. As their impacts in the terrestrial environment are still poorly understood, we studied the effects of polyester fibers on enchytraeids (Enchytraeus crypticus), springtails (Folsomia candida), isopods (Porcellio scaber) and oribatid mites (Oppia nitens), all playing an important role in soil decomposer food webs. We exposed these invertebrates in the laboratory to short (12 µm–2.87 mm) and long (4–24 mm) polyester fibers, spiked in soil or in food at five concentrations ranging from 0.02% to 1.5% (w/w) and using five replicates. Overall the effects of polyester fibers on the soil invertebrates were slight. Energy reserves of the isopods were slightly affected by both fiber types, and enchytraeid reproduction decreased up to 30% with increasing fiber concentration, but only for long fibers in soil. The low ingestion of long fibers by the enchytraeids suggests that this negative impact arose from a physical harm outside the organism, or from indirect effects resulting from changes in environmental conditions. The short fibers were clearly ingested by enchytraeids and isopods, with the rate of ingestion positively related to fiber concentration in the soil. This study shows that polyester fibers are not very harmful to soil invertebrates upon short-term exposure. However, longer lasting, multigeneration studies with functional endpoints are needed to reveal the possible long-term effects on soil invertebrates and their role in the decomposition process. This study also shows that polyester fibers can enter terrestrial food web via ingestion of fibers by soil invertebrates. microplastic polyester fibres soil ecotoxicology Enchytraeid springtail isopod true false true Angleški jezik Ni določen Neznano 2024-07-19 03:41:26 2024-07-19 13:21:48 2024-07-20 04:03:06 0000-00-00 00:00:00 2020 0 0 str. 1-11 Vol. 700 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2020-01-15 595.373 0048-9697 10.1016/j.scitotenv.2019.134451 5210447 RAZ_Selonen_Salla_2020.pdf RAZ_Selonen_Salla_2020.pdf 1 DD63B1609A9EFE3CD3AC03C133F7B368 43869db6b66c7324888d0df7f6219db9fb2f6f75e968f903568e59c39957cfd6 ee8189fa-45b0-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=27004 https://doi.org/10.1016/j.scitotenv.2019.134451 0 0dafbbc7-45b1-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=27005 Nacionalni inštitut za biologijo 0 0 0