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dc.rights.licenseopenen_US
dc.contributor.authorMARTINEZ ALVAREZ, Ignacio
dc.contributor.authorLE MENACH, Karyn
IDREF: 256879966
dc.contributor.authorDEVIER, Marie-Helene
IDREF: 072746092
dc.contributor.authorCAJARAVILLE, Miren P.
dc.contributor.authorBUDZINSKI, Hélène
ORCID: 0000-0003-1028-9154
IDREF: 070478090
dc.contributor.authorORBEA, Amaia
dc.date.accessioned2022-11-07T13:34:37Z
dc.date.available2022-11-07T13:34:37Z
dc.date.issued2022-03-12
dc.identifier.issn2079-4991en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/170216
dc.description.abstractEnThe occurrence of nanoplastics (NPs) and microplastics (MPs) in aquatic ecosystems and their capacity to sorb hydrophobic pollutants is nowadays an issue of great concern. This study aimed to assess the potential bioavailability and acute toxicity of polystyrene (PS) NPs (50 and 500 nm) and of MPs (4.5 µm), alone and with sorbed benzo(a)pyrene (B(a)P), in the embryo/larval stages of brine shrimps and zebrafish. Exposure to pristine plastics up to 50.1 mg PS/L did not cause significant impact on brine shrimp survival, while some treatments of plastics-B(a)P and all concentrations of B(a)P (0.1–10 mg/L) resulted acutely toxic. In zebrafish, only the highest concentrations of MPs-B(a)P and B(a)P caused a significant increase of malformation prevalence. Ingestion of NPs was observed by 24–48 h of exposure in the two organisms (from 0.069 to 6.87 mg PS/L). In brine shrimps, NPs were observed over the body surface and within the digestive tract, associated with feces. In zebrafish, NPs were localized in the eyes, yolk sac, and tail at 72 h, showing their capacity to translocate and spread into the embryo. MP ingestion was only demonstrated for brine shrimps. In zebrafish embryos exposed to plastics-B(a)P, B(a)P appeared in the yolk sac of the embryos. The presence of B(a)P was also noticeable in brine shrimps exposed to 500 nm NPs-B(a)P. In conclusion, NPs entered and spread into the zebrafish embryo and PS NPs, and MPs were successful vectors of B(a)P to brine shrimp and zebrafish embryos. Particle size played a significant role in explaining the toxicity of plastics–B(a)P. Our study provides support for the idea that plastics may pose a risk to aquatic organisms when combined with persistent organic pollutants such as B(a)P. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003en_US
dc.description.sponsorshipCOntinental To coastal Ecosystems: evolution, adaptability and governance - ANR-10-LABX-0045en_US
dc.language.isoENen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.subject.enPolystyrene
dc.subject.enNanoplastics
dc.subject.enMicroplastics
dc.subject.enBenzo(a)pyrene
dc.subject.enZebrafish embryos
dc.subject.enBrine shrimp larvae
dc.subject.enAcute toxicity
dc.subject.enBioavailability
dc.title.enScreening of the Toxicity of Polystyrene Nano-and Microplastics Alone and in Combination with Benzo(a)pyrene in Brine Shrimp Larvae and Zebrafish Embryos
dc.typeArticle de revueen_US
dc.identifier.doi10.3390/nano12060941en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalNanomaterialsen_US
bordeaux.volume12en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue6en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-03842283
hal.version1
hal.date.transferred2022-11-07T13:34:46Z
hal.exporttrue
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nanomaterials&rft.date=2022-03-12&rft.volume=12&rft.issue=6&rft.eissn=2079-4991&rft.issn=2079-4991&rft.au=MARTINEZ%20ALVAREZ,%20Ignacio&LE%20MENACH,%20Karyn&DEVIER,%20Marie-Helene&CAJARAVILLE,%20Miren%20P.&BUDZINSKI,%20H%C3%A9l%C3%A8ne&rft.genre=article


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