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Enhancing microplastic sampling efficiency with in-situ filtration instrumentation: a novel protocol for turbid estuarine waters

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorRUIZ GONZALEZ, Vania
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorJALON ROJAS, Isabel
ORCID: 0000-0003-4254-4084
IDREF: 160580730
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSTEINMETZ, Charlene
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorKAIMATHURUTHY, Betty John
dc.date.accessioned2025-04-07T09:32:56Z
dc.date.available2025-04-07T09:32:56Z
dc.date.conference2024-06
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/206013
dc.description.abstractEnConducting in situ observations to measure microplastic concentrations in the abiotic compartment is essential for enhancing our understanding of plastic pollution along the land-sea continuum. While numerous protocols have been devised to investigate microplastic (MP) pollution in oceans and rivers, mainly in surface waters and sediments, many may not be suitable for assessing MP contamination in coastal transition waters such as estuaries, where MPs can exhibit high mobility within the water column. Assessing MPs in tidal systems requires several samplings throughout the tidal cycle, which is challenging due to short sampling periods and the presence of suspended sediments. Sampling MPs in these environments is therefore challenging using nets (risk of clogging), bottles (limited water quantity), or pumps (potential sample contamination). To address this challenge, a new instrument, the Ascension profiler, has been introduced for in-situ water pumping and filtering, avoiding sample contamination. This device offers the flexibility of using filters with different mesh sizes and enables the filtration of large water volumes to ensure representative sampling even at high water depths. In our study, we propose an innovative in-situ sampling strategy protocol that accounts for the typical time scales of estuarine variability as well as the longitudinal salinity gradient using Ascension. We present all the preliminary tests made with the instrument to set up a protocol (water volume, pumping duration, filter size) adapted to the conditions of the macrotidal hyperturbid Gironde estuary. Furthermore, this new sampling method and protocol hold promise for application in other oceanic, coastal, and freshwater environments.
dc.description.sponsorshipProcessus physiques de transport de microplastiques en estuaires macrotidaux - ANR-22-CE01-0011en_US
dc.language.isoENen_US
dc.title.enEnhancing microplastic sampling efficiency with in-situ filtration instrumentation: a novel protocol for turbid estuarine waters
dc.typeCommunication dans un congrèsen_US
dc.subject.halSciences de l'environnementen_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.conference.titleRencontres du GDR Plastiques Environnement Santéen_US
bordeaux.teamMETHYSen_US
bordeaux.import.sourcehal
hal.identifierhal-04691421
hal.version1
hal.proceedingsouien_US
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=RUIZ%20GONZALEZ,%20Vania&JALON%20ROJAS,%20Isabel&STEINMETZ,%20Charlene&KAIMATHURUTHY,%20Betty%20John&rft.genre=unknown


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