2026-06-27T10:32:14Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/72942024-06-19T14:16:16Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Martín, Carmen author Fajardo Martínez, Carmen María author Costa Buitrago, Gonzalo Antonio author Sánchez-Fortún Rodríguez, Sebastián author San Andrés Larrea, María Dolores De author González Gómez, Fernando author Nande Barbeitos, María Del Mar author Mengs, Gerardo author Martín Fernández, Margarita 2023-06-17T08:29:54Z 2023-06-17T08:29:54Z 2021-01-22 C. Martín, C. Fajardo, G. Costa et al. «Bioassays to Assess the Ecotoxicological Impact of Polyethylene Microplastics and Two Organic Pollutants, Simazine and Ibuprofen». Chemosphere, vol. 274, julio de 2021, p. 129704. DOI.org (Crossref), https://doi.org/10.1016/j.chemosphere.2021.129704. 0045-6535 10.1016/j.chemosphere.2021.129704 https://hdl.handle.net/20.500.14352/7294 1879-1298 https://doi.org/10.1016/j.chemosphere.2021.129704 https://www.sciencedirect.com/science/article/pii/S0045653521001739?via%3Dihub Research on the environmental impact of plastics, especially on the effect of microplastics (MPs), has become a priority issue in recent years, mainly in terrestrial ecosystems where there is a lack of studies. This work aims to assess the impact of two types of polyethylene MPs, white microbeads (W) and fluorescent blue microbeads (FB), and their interactions with two contaminants, ibuprofen (Ib) and simazine (Sz), on different organisms. A set of bioassays for Vibrio fischeri, Caenorhabditis elegans and Lactuca sativa was carried out, which helped to establish the ecotoxicological impact of those pollutants. C. elegans showed the least sensitivity, while V. fischeri and L. sativa showed a high toxicological response to MPs alone. We found that W and FB induced an inhibition of 27% and 5.79%, respectively, in V. fischeri, and the growth inhibition rates were near 70% in L. sativa for both MPs. MPs exhibited a potential role as contaminant vectors in V. fischeri since the inhibition caused by W-Ib or W-Sz complexes was near 39%. The W-Sz complex significantly reduced leaf development in L. sativa, and a reduction of 30% in seed germination was detected when the complex FB-Sz was tested. This study reveals the importance of designing a complete set of analyses with organisms from different trophic levels, considering the great variability in the effects of MPs and the high number of relevant factors. eng Bioassays to assess the ecotoxicological impact of polyethylene microplastics and two organic pollutants, simazine and ibuprofen journal article URL https://docta.ucm.es/bitstreams/e3888195-6e3e-4128-a3fe-4d43d07f4880/download File MD5 878839bafbb0911facbcf41ef8b0f748 1676677 application/pdf Bioassays_to_assess.pdf