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dc.contributor.authorBeiras, Ricardo
dc.contributor.authorMuniategui Lorenzo, Soledad
dc.contributor.authorRodil Rodríguez, María del Rosario
dc.contributor.authorTato, Tania
dc.contributor.authorMontes Goyanes, Rosa María
dc.contributor.authorLópez-Ibáñez, Sara
dc.contributor.authorConcha-Graña, Estefanía
dc.contributor.authorCampoy-López, Pedro
dc.contributor.authorSalgueiro-González, Noelia
dc.contributor.authorQuintana Álvarez, José Benito
dc.identifier.citationBeiras et al. Polyethylene microplastics do not increase bioaccumulation or toxicity of nonylphenol and 4-MBC to marine zooplankton, Science of the Total Environment, 2019, 692, 1-9. j.scitotenv.2019.07.106
dc.description.abstractGlobal production of synthetic polymers, led by polyethylene (PE), rose steadily in the last decades, and marine ecosystems are considered as a global sink. Although PE is not biodegradable, in coastal areas it fragments into microplastics (MP) readily taken up by biota, and have been postulated as vectors of hydrophobic chemicals to marine organisms. We have tested this hypothesis using two organisms representative of the marine plankton, the holoplanktonic copepod Acartia clausi, and the meroplanktonic larva of the Paracentrotus lividus sea-urchin, and two model chemicals with similar hydrophobic properties, the 4-n-Nonylphenol and the 4-Methylbenzylidene-camphor used as plastic additive and UV filter in cosmetics. Both test species actively ingested the MP particles. However, the presence of MP never increased the bioaccumulation of neither model chemicals, nor their toxicity to the exposed organisms. Bioaccumulation was a linear function of waterborne chemical disregarding the level of MP. Toxicity, assessed by the threshold (EC10) and median (EC50) effect levels, was either independent of the level of MP or even in some instances significantly decreased in the presence of MPs. These consistent results challenge the assumption that MP act as vectors of hydrophobic chemicals to planktonic marine organisms
dc.description.sponsorshipThis study has received funding by the Spanish Government (MINECO/AEI) through Projects PCIN-2015-187-C03-03 (JPI Oceans EPHEMARE), PCIN-2015-170-C02-01 (JPI Oceans BASEMAN), CTM2016-77945-C3, and CTM2017-84763-C3-2-R, by Xunta de Galicia through “Program of Consolidation and structuring of competitive research groups in the University system of Galicia” (Refs GRC2013-004, ED431C 2017/28 and ED431C 2017/36), and by the European Union through the European Regional Development Fund (ERDF). N. S.-G. was granted with a postdoctoral fellowship Mod. A (2016) by Axencia Galega de Innovación (GAIN), Xunta de Galicia
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/CTM2017-84763-C3-2-R/ES/EVALUACION DEL EXPOSOMA DE CONTAMINANTES EMERGENTES EN AMBIENTES ACUATICOS
dc.rights© 2019 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (
dc.subjectToxicity bioassays
dc.titlePolyethylene microplastics do not increase bioaccumuation or toxicity of nonylphenol and 4-MBC to marine zooplankton
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Química Analítica, Nutrición e Bromatoloxía
dc.contributor.affiliationUniversidade de Santiago de Compostela. Instituto de Investigación e Análises Alimentarias

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© 2019 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (
Except where otherwise noted, this item's license is described as  © 2019 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (

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