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dc.date.accessioned2019-12-10T19:46:31Z
dc.date.available2019-12-10T19:46:31Z
dc.date.created2015-05-19T09:10:02Z
dc.date.issued2015
dc.identifier.citationCoutris, Claire Macken, Ailbhe Collins, Andrew Richard El Yamani, Naouale Brooks, Steven . Marine ecotoxicity of nitramines, transformation products of amine-based carbon capture technology. Science of the Total Environment. 2015, 527-528, 211-219
dc.identifier.urihttp://hdl.handle.net/10852/71534
dc.description.abstractIn the context of reducing CO2 emissions to the atmosphere, chemical absorption with amines is emerging as the most advanced technology for post-combustion CO2 capture from exhaust gases of fossil fuel power plants. Despite amine solvent recycling during the capture process, degradation products are formed and released into the environment, among them aliphatic nitramines, for which the environmental impact is unknown. In this study, we determined the acute and chronic toxicity of two nitramines identified as important transformation products of amine-based carbon capture, dimethylnitramine and ethanolnitramine, using a multi-trophic suite of bioassays. The results were then used to produce the first environmental risk assessment for the marine ecosystem. In addition, the in vivo genotoxicity of nitramines was studied by adapting the comet assay to cells from experimentally exposed fish. Overall, based on the whole organism bioassays, the toxicity of both nitramines was considered to be low. The most sensitive response to both compounds was found in oysters, and dimethylnitramine was consistently more toxic than ethanolnitramine in all bioassays. The Predicted No Effect Concentrations for dimethylnitramine and ethanolnitramine were 0.08 and 0.18 mg/L, respectively. The genotoxicity assessment revealed contrasting results to the whole organism bioassays, with ethanolnitramine found to be more genotoxic than dimethylnitramine by three orders of magnitude. At the lowest ethanolnitramine concentration (1 mg/L), 84% DNA damage was observed, whereas 100 mg/L dimethylnitramine was required to cause 37% DNA damage. The mechanisms of genotoxicity were also shown to differ between the two compounds, with oxidation of the DNA bases responsible for over 90% of the genotoxicity of dimethylnitramine, whereas DNA strand breaks and alkali-labile sites were responsible for over 90% of the genotoxicity of ethanolnitramine. Fish exposed to > 3 mg/L ethanolnitramine had virtually no DNA left in their red blood cells.
dc.description.abstractMarine ecotoxicity of nitramines, transformation products of amine-based carbon capture technology
dc.languageEN
dc.publisherElsevier Science
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleMarine ecotoxicity of nitramines, transformation products of amine-based carbon capture technology
dc.title.alternativeENEngelskEnglishMarine ecotoxicity of nitramines, transformation products of amine-based carbon capture technology
dc.typeJournal article
dc.creator.authorCoutris, Claire
dc.creator.authorMacken, Ailbhe
dc.creator.authorCollins, Andrew Richard
dc.creator.authorEl Yamani, Naouale
dc.creator.authorBrooks, Steven
cristin.unitcode185,51,13,20
cristin.unitnameSeksjon for klinisk ernæring
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2
dc.identifier.cristin1243212
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science of the Total Environment&rft.volume=527-528&rft.spage=211&rft.date=2015
dc.identifier.jtitleScience of the Total Environment
dc.identifier.volume527-528
dc.identifier.startpage211
dc.identifier.endpage219
dc.identifier.doihttps://doi.org/10.1016/j.scitotenv.2015.04.119
dc.identifier.doihttps://doi.org/10.1016/j.scitotenv.2015.04.119
dc.identifier.urnURN:NBN:no-74639
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn0048-9697
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/71534/2/1243212.pdf
dc.type.versionAcceptedVersion
dc.relation.projectNFR/199874


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