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dc.contributor.authorRajala, Juho
dc.contributor.authorVehniäinen, Eeva-Riikka
dc.contributor.authorVäisänen, Ari
dc.contributor.authorKukkonen, Jussi
dc.date.accessioned2017-10-11T06:09:44Z
dc.date.available2018-04-04T21:45:08Z
dc.date.issued2017
dc.identifier.citationRajala, J., Vehniäinen, E.-R., Väisänen, A., & Kukkonen, J. (2017). Partitioning of nanoparticle-originated dissolved silver in natural and artificial sediments. <i>Environmental Toxicology and Chemistry</i>, <i>36</i>(10), 2593-2601. <a href="https://doi.org/10.1002/etc.3798" target="_blank">https://doi.org/10.1002/etc.3798</a>
dc.identifier.otherCONVID_26918800
dc.identifier.otherTUTKAID_73325
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/55608
dc.description.abstractSediments are believed to be a major sink for silver nanoparticles (AgNPs) in the aquatic environment, but there is a lack of knowledge about the environmental effects and behavior of AgNPs in sediments. The release of highly toxic Ag+ through dissolution of AgNPs is one mechanism leading to toxic effects in sediments. We applied an ultrasound-assisted sequential extraction method to evaluate the dissolution of AgNPs and to study the partitioning of dissolved Ag in sediments. Silver was spiked into artificial and 2 natural sediments (Lake Höytiäinen sediment and Lake Kuorinka sediment) as silver nitrate (AgNO3), uncoated AgNPs, or polyvinylpyrrolidone-coated AgNPs (PVP-AgNPs). In addition, the total body burdens of Ag in the sediment-dwelling oligochaete Lumbriculus variegatus were assessed over a 28-d exposure period. The dissolution rate was found to be similar between the uncoated AgNP and PVP-AgNP groups. In all sediments, dissolved Ag was mainly bound to the residual fraction of the sediment, followed by iron and manganese oxides or natural organic matter. In Lake Kuorinka sediment, dissolved Ag that originated from PVP-AgNPs was relatively more bioaccessible, also resulting in higher total body burden in L. variegatus than that from uncoated AgNPs or AgNO3. In artificial sediment and Lake Höytiäinen sediment, AgNO3 was significantly more bioaccessible than AgNPs. Our results highlight the importance of sediment properties and AgNP surface chemistry when evaluating the environmental exposure of AgNPs.
dc.language.isoeng
dc.publisherJohn Wiley & Sons, Inc.; Society of Environmental Toxicology and Chemistry
dc.relation.ispartofseriesEnvironmental Toxicology and Chemistry
dc.subject.othersediment chemistry
dc.subject.othersequential extraction
dc.subject.othernanoecotoxicology
dc.titlePartitioning of nanoparticle-originated dissolved silver in natural and artificial sediments
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201709293882
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineYmpäristötiedefi
dc.contributor.oppiaineEpäorgaaninen ja analyyttinen kemiafi
dc.contributor.oppiaineEnvironmental Scienceen
dc.contributor.oppiaineInorganic and Analytical Chemistryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-09-29T12:15:11Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange2593-2601
dc.relation.issn0730-7268
dc.relation.numberinseries10
dc.relation.volume36
dc.type.versionacceptedVersion
dc.rights.copyright© 2017 SETAC. This is a final draft version of an article whose final and definitive form has been published by Wiley. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber285296
dc.subject.ysosedimentit
dc.subject.ysoekotoksikologia
dc.subject.ysonanohiukkaset
dc.subject.ysohopea
jyx.subject.urihttp://www.yso.fi/onto/yso/p14605
jyx.subject.urihttp://www.yso.fi/onto/yso/p19671
jyx.subject.urihttp://www.yso.fi/onto/yso/p23451
jyx.subject.urihttp://www.yso.fi/onto/yso/p7409
dc.relation.doi10.1002/etc.3798
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiatutkijan tehtävä, SAfi
jyx.fundingprogramResearch post as Academy Research Fellow, AoFen
jyx.fundinginformationJ.E. Rajala acknowledges support from the University of Jyväskylä Graduate School for Doctoral Studies. E.‐R. Vehniäinen was supported by the Academy of Finland (285296).


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