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dc.contributor.authorBruvold, Are Sæle
dc.contributor.authorBienfait, André Marcel
dc.contributor.authorErvik, Torunn Kringlen
dc.contributor.authorLoeschner, Katrin
dc.contributor.authorValdersnes, Stig
dc.date.accessioned2023-12-21T14:19:56Z
dc.date.available2023-12-21T14:19:56Z
dc.date.created2023-04-28T13:15:11Z
dc.date.issued2023
dc.identifier.issn0141-1136
dc.identifier.urihttps://hdl.handle.net/11250/3108671
dc.description.abstractDue to the analytical challenges of detecting and quantifying nanoparticles in seawater, the data on distributions of NPs in the marine environment is limited to qualitative studies or by ensemble measurements subject to various analytical artifacts. Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) allows determination of individual inorganic NPs at environmentally relevant concentrations, yet only few studies have been conducted on selected elements in surface sea water. Here, a sequential multi-element screening method was developed and implemented to provide a first survey of the horizontal and vertical distributions of inorganic nanoparticles and trace elements in a pristine Norwegian fjord prospect for submarine tailings deposition. Statistical control of false-positive detections while minimizing the size detection limit was ensured using a novel raw signal processing. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) gave confirmative and qualitative information regarding particle morphology and composition. Following SP-ICP-MS screening for particles of 16 elements, particulate Al, Fe, Mn, Pb, Si and Ti were found and determined to mass concentrations in ng/L of 1–399, 1–412, below limit of detection (<LOD) - 269, <LOD - 1, <LOD - 1981 and <LOD - 127 ng/L with particle number concentrations up to 108 particles per liter. Total metals concentrations were at least an order of magnitude higher, at concentrations in μg/L of 1–12 for Al, 2–13 for Fe, 0.3–11 Mn, 0.02–0.5 for Pb, 46 to 318 Si and 0.04–0.4 for Ti. A strong depth dependence was observed for both trace elements and particles with concentrations increasing with depth. Our results provide a baseline for the fjord and new data on environmental levels of both total metals and metal containing nanoparticles including the vertical and horizontal distribution of natural nanoparticlesen_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleVertical distribution of inorganic nanoparticles in a Norwegian fjorden_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.source.articlenumber105975en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.1016/j.marenvres.2023.105975
dc.identifier.cristin2144211
dc.source.journalMarine Environmental Researchen_US
dc.relation.projectNorges forskningsråd: 299554en_US
dc.relation.projectHavforskningsinstituttet: 15507–02en_US
dc.relation.projectHavforskningsinstituttet: 15318en_US
dc.identifier.citationMarine Environmental Research. 2023, 188, 105975.en_US
dc.source.volume188en_US


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