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dc.contributor.authorFaksness, Liv Guri
dc.contributor.authorAltin, Dag
dc.contributor.authorStørseth, Trond Røvik
dc.contributor.authorNordtug, Trond
dc.contributor.authorHansen, Bjørn Henrik
dc.date.accessioned2020-05-07T08:32:31Z
dc.date.available2020-05-07T08:32:31Z
dc.date.created2020-04-28T17:37:53Z
dc.date.issued2020-05
dc.identifier.citationMarine Environmental Research. 2020, 157 1-8.en_US
dc.identifier.issn0141-1136
dc.identifier.urihttps://hdl.handle.net/11250/2653581
dc.description.abstractMacondo source oils and artificially weathered oil residues from 150 °C+ to 300 °C+, including artificially photo oxidized oils, were prepared and used for generating low energy water accommodated fractions (LE-WAFs) in order to assess the impact of oil weathering on WAF chemistry composition and toxicity to marine organisms. Two pelagic species representing primary producers (the marine algae Skeletonema pseudocostatum) and invertebrates (the marine copepod Acartia tonsa) were tested. Obtained acute toxicity levels, expressed as EC/LC50 values, were in the same range or above the obtained maximum WAF concentrations for WAFs from most weathering degrees. Based on % WAF dilutions, reduced toxicity was determined as a function of weathering. The chemical compositions of all WAFs were compared to compositions obtained from water samples reported in the GRIIDC database using multivariate analysis, indicating that WAFs of photo oxidized and two field weathered oils resembled the field data the most.en_US
dc.language.isoengen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectPetroleum hydrocarbonsen_US
dc.subjectToxicityen_US
dc.subjectBioavailabilityen_US
dc.subjectWater accommodated fractionsen_US
dc.subjectWeathered oilen_US
dc.subjectDeepwater horizonen_US
dc.subjectMacondoen_US
dc.titleComparison of artificially weathered Macondo oil with field samples and evidence that weathering does not increase environmental acute toxicityen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2020 The Authors. Published by Elsevier Ltd.en_US
dc.source.pagenumber1-8en_US
dc.source.volume157en_US
dc.source.journalMarine Environmental Researchen_US
dc.identifier.doi10.1016/j.marenvres.2020.104928
dc.identifier.cristin1808518
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal