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dc.contributor.authorKrogseth, Ingjerd Sunde
dc.contributor.authorKierkegaard, Amelie
dc.contributor.authorMcLachlan, Michael S.
dc.contributor.authorBreivik, Knut
dc.contributor.authorHansen, Kaj M.
dc.contributor.authorSchlabach, Martin
dc.date.accessioned2017-12-04T12:56:04Z
dc.date.available2017-12-04T12:56:04Z
dc.date.created2013-01-02T09:30:04Z
dc.date.issued2013
dc.identifier.citationKrogseth, I.S., Kierkegaard, A., Mclachlan, M.S., Breivik, K., Hansen, K.M., Schlabach, M. (2013). Occurrence and seasonality of cyclic volatile methyl siloxanes in Arctic air. Environmental Science and Technology, 47, 502-509. doi:10.1021/es3040208nb_NO
dc.identifier.issn0013-936X
dc.identifier.urihttp://hdl.handle.net/11250/2469047
dc.description.abstractCyclic volatile methyl siloxanes (cVMS) are present in technical applications and personal care products. They are predicted to undergo long-range atmospheric transport, but measurements of cVMS in remote areas remain scarce. An active air sampling method for decamethylcyclopentasiloxane (D5) was further evaluated to include hexamethylcyclotrisiloxane (D3), octamethylcyclotetrasiloxane (D4), and dodecamethylcyclohexasiloxane (D6). Air samples were collected at the Zeppelin observatory in the remote Arctic (79° N, 12° E) with an average sampling time of 81 ± 23 h in late summer (August−October) and 25 ± 10 h in early winter (November−December) 2011. The average concentrations of D5 and D6 in late summer were 0.73 ± 0.31 and 0.23 ± 0.17 ng/m3, respectively, and 2.94 ± 0.46 and 0.45 ± 0.18 ng/m3 in early winter, respectively. Detection of D5 and D6 in the Arctic atmosphere confirms their long-range atmospheric transport. The D5 measurements agreed well with predictions from a Eulerian atmospheric chemistry−transport model, and seasonal variability was explained by the seasonality in the OH radical concentrations. These results extend our understanding of the atmospheric fate of D5 to high latitudes, but question the levels of D3 and D4 that have previously been measured at Zeppelin with passive air samplers.nb_NO
dc.language.isoengnb_NO
dc.subjectZeppelinobservatoriet
dc.titleOccurrence and seasonality of cyclic volatile methyl siloxanes in Arctic airnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.rights.holderCopyright © 2012 American Chemical Societynb_NO
dc.source.pagenumber502-509nb_NO
dc.source.volume47nb_NO
dc.source.journalEnvironmental Science and Technologynb_NO
dc.source.issue1nb_NO
dc.identifier.doi10.1021/es3040208
dc.identifier.cristin978779
dc.relation.projectNorges forskningsråd: 196191nb_NO
cristin.unitcode7460,60,0,0
cristin.unitcode7460,57,0,0
cristin.unitnameMiljøkjemi
cristin.unitnameAtmosfære og klima
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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