RT Journal Article
T1 Bioassays to assess the ecotoxicological impact of polyethylene microplastics and two organic pollutants, simazine and ibuprofen
A1 Martín, Carmen
A1 Fajardo Martínez, Carmen María
A1 Costa Buitrago, Gonzalo Antonio
A1 Sánchez-Fortún Rodríguez, Sebastián
A1 San Andrés Larrea, María Dolores De
A1 González Gómez, Fernando
A1 Nande Barbeitos, María Del Mar
A1 Mengs, Gerardo
A1 Martín Fernández, Margarita
AB 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.
PB Elsevier
SN 0045-6535
YR 2021
FD 2021-01-22
LK https://hdl.handle.net/20.500.14352/7294
UL https://hdl.handle.net/20.500.14352/7294
LA eng
NO 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.
NO Ministerio de Ciencia, Innovación y Universidades (España)
DS Docta Complutense
RD 10 abr 2025