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dc.contributor.authorLusher, Amy
dc.contributor.authorBuenaventura, Nina Tuscano
dc.contributor.authorEidsvoll, David
dc.contributor.authorThrane, Jan-Erik
dc.contributor.authorØkelsrud, Asle
dc.contributor.authorJartun, Morten
dc.date.accessioned2019-03-05T10:11:36Z
dc.date.available2019-03-05T10:11:36Z
dc.date.created2019-02-25T15:43:04Z
dc.date.issued2018
dc.identifier.isbn978-82-577-7061-7
dc.identifier.issn1894-7948
dc.identifier.urihttp://hdl.handle.net/11250/2588713
dc.descriptionProject manager Morten Jartunnb_NO
dc.description.abstractThe Norwegian Environment Agency (Miljødirektoratet) tasked NIVA to investigate the presence of microplastics in one of Norway’s largest freshwater ecosystems, Lake Mjøsa, using monitoring methods which have been recently optimised for the marine environment. Presented here is a baseline description of microplastic distribution in Lake Mjøsa and Lake Femunden, as well as NIVAs recommendations for future monitoring of microplastics in the Norwegian freshwater environment. Microplastics were identified in sediment across all sites in Lake Mjøsa. Core slices from a known volume of sediment are well suited to investigate both geographical and historical distribution of microplastics. Bivalves, such as the duck mussel appear less useful as a test medium but might be useful for comparative analyses against the marine environment. Samples of historical plankton could be a useful way to study temporal changes in a specific area. However, fibres need to be excluded from historical samples as contamination during past sampling campaigns cannot be accounted for. Contamination mitigation measures should be considered in ongoing plankton sampling to facilitate microplastic monitoring in the future. It is not likely that choosing to investigate only one matrix (i.e. just sediments or just plankton samples) will provide a robust assessment of microplastic contamination for a whole ecosystem. A combination of water, sediment and biota samples are recommended. Microplastic monitoring could also be introduced to already established monitoring programs (e.g. Milfersk and/or ØKOSTOR), albeit gradually, to get a better understanding of microplastic distribution both geographically and between different matrixes (such as water, sediment and different biota). Long-term, continuous monitoring will eventually generate a knowledge base for assessing both the fate of microplastics and the effects they may have on organisms.nb_NO
dc.description.sponsorshipNorwegian Environment Agencynb_NO
dc.language.isoengnb_NO
dc.publisherNorwegian Insititute for Water Researchnb_NO
dc.relation.ispartofNIVA-rapport
dc.relation.ispartofseriesNIVA-rapport;7326
dc.relation.ispartofseriesMiljødirektoratet-rapport;1212
dc.rightsNavngivelse-Ikkekommersiell-DelPåSammeVilkår 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/deed.no*
dc.subjectForurensningnb_NO
dc.subjectPollutionnb_NO
dc.subjectFerskvannnb_NO
dc.subjectFreshwaternb_NO
dc.subjectSedimentnb_NO
dc.subjectMikroplastnb_NO
dc.subjectMicroplasticnb_NO
dc.titleFreshwater microplastics in Norway: A first look at sediment, biota and historical plankton samples from Lake Mjøsa and Lake Femundennb_NO
dc.title.alternativeMikroplast i ferskvannssystemer i Norge. Et første blikk på sediment, biota og historiske planktonprøver fra Mjøsa og Femundennb_NO
dc.typeResearch reportnb_NO
dc.description.versionpublishedVersionnb_NO
dc.rights.holderNorwegian Insititute for Water Researchnb_NO
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400nb_NO
dc.subject.nsiVDP::Mathematics and natural scienses: 400nb_NO
dc.source.pagenumber46nb_NO
dc.source.issue7326nb_NO
dc.identifier.cristin1680546
dc.relation.projectNorsk institutt for vannforskning: 180228nb_NO
cristin.unitcode7464,20,19,0
cristin.unitcode7464,20,13,0
cristin.unitcode7464,30,19,0
cristin.unitnameMiljøgifter
cristin.unitnameØkotoksikologi
cristin.unitnameFerskvannsøkologi
cristin.ispublishedtrue
cristin.fulltextoriginal


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Navngivelse-Ikkekommersiell-DelPåSammeVilkår 4.0 Internasjonal
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