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dc.contributor.authorKrogseth, Ingjerd Sunde
dc.contributor.authorUndeman, Emma Maria
dc.contributor.authorEvenset, Anita
dc.contributor.authorChristensen, Guttorm N.
dc.contributor.authorWhelan, Mick
dc.contributor.authorBreivik, Knut
dc.contributor.authorWarner, Nicholas Alexander
dc.date.accessioned2017-11-14T10:13:57Z
dc.date.available2017-11-14T10:13:57Z
dc.date.created2017-10-09T11:25:50Z
dc.date.issued2017
dc.identifier.citationKrogseth, I. S., Undeman, E. M., Evenset, A., Christensen, G. N., Whelan, M. J., Breivik, K., & Warner, N. A. (2017). Elucidating the behavior of cyclic volatile methylsiloxanes in a subarctic freshwater food web: A modeled and measured approach. Environmental Science & Technology, 51, 12489-12497. doi:10.1021/acs.est.7b03083nb_NO
dc.identifier.issn0013-936X
dc.identifier.urihttp://hdl.handle.net/11250/2466112
dc.description.abstractCyclic volatile methylsiloxanes (cVMS) are used in personal care products and emitted to aquatic environments through wastewater effluents, and their bioaccumulation potential is debated. Here, a new bentho-pelagic version of the ACC-HUMAN model was evaluated for polychlorinated biphenyls (PCBs) and applied to cVMS in combination with measurements to explore their bioaccumulation behavior in a subarctic lake. Predictions agreed better with measured PCB concentrations in Arctic char (Salvelinus alpinus) and brown trout (Salmo trutta) when the benthic link was included than in the pelagic-only model. Measured concentrations of decamethylcyclopentasiloxane (D5) were 60 ± 1.2 (Chironomidae larvae), 107 ± 4.5 (pea clams Pisidium sp.), 131 ± 105 (three-spined sticklebacks: Gasterosteus aculeatus), 41 ± 38 (char), and 9.9 ± 5.9 (trout) ng g-1 wet weight. Concentrations were lower for octamethylcyclotetrasiloxane (D4) and dodecamethylcyclohexasiloxane (D6), and none of the cVMS displayed trophic magnification. Predicted cVMS concentrations were lower than measured in benthos, but agreed well with measurements in fish. cVMS removal through ventilation was an important predicted loss mechanism for the benthic-feeding fish. Predictions were highly sensitive to the partition coefficient between organic carbon and water (KOC) and its temperature dependence, as this controlled bioavailability for benthos (the main source of cVMS for fish).nb_NO
dc.language.isoengnb_NO
dc.titleElucidating the Behavior of Cyclic Volatile Methylsiloxanes in a Subarctic Freshwater Food Web: A Modeled and Measured Approachnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.rights.holderCopyright © 2017 American Chemical Societynb_NO
dc.source.pagenumber12489-12497nb_NO
dc.source.volume51nb_NO
dc.source.journalEnvironmental Science and Technologynb_NO
dc.identifier.doi10.1021/acs.est.7b03083
dc.identifier.cristin1503302
dc.relation.projectNorges forskningsråd: 222259nb_NO
dc.relation.projectNorges forskningsråd: 244298nb_NO
cristin.unitcode7460,60,0,0
cristin.unitcode7460,57,0,0
cristin.unitnameMiljøkjemi
cristin.unitnameAtmosfære og klima
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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