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dc.contributor.authorHartikainen, Anni
dc.contributor.authorYli-Pirilä, Pasi
dc.contributor.authorTiitta, Petri
dc.contributor.authorLeskinen, Afi
dc.contributor.authorKortelainen, Miika
dc.contributor.authorOrasche, Juergen
dc.contributor.authorSchnelle-Kreis, Juergen
dc.contributor.authorLehtinen, Kari E J
dc.contributor.authorZimmermann, Ralf
dc.contributor.authorJokiniemi, Jorma
dc.contributor.authorSippula, Olli
dc.date.accessioned2018-09-04T12:27:03Z
dc.date.available2018-09-04T12:27:03Z
dc.date.issued2018
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/6900
dc.description.abstractResidential wood combustion (RWC) emits high amounts of volatile organic compounds (VOCs) into ambient air, leading to formation of secondary organic aerosol (SOA), and various health and climate effects. In this study, the emission factors of VOCs from a logwood-fired modern masonry heater were measured using a Proton-Transfer-Reactor Time-of-Flight Mass Spectrometer. Next, the VOCs were aged in a 29 m3 Teflon chamber equipped with UV black lights, where dark and photochemical atmospheric conditions were simulated. The main constituents of the VOC emissions were carbonyls and aromatic compounds, which accounted for 50%–52% and 30%–46% of the detected VOC emission, respectively. Emissions were highly susceptible to different combustion conditions, which caused a 2.4-fold variation in emission factors. The overall VOC concentrations declined considerably during both dark and photochemical aging, with simultaneous increase in particulate organic aerosol mass. Especially furanoic and phenolic compounds decreased, and they are suggested to be the major precursors of RWC-originated SOA in all aging conditions. On the other hand, dark aging produced relatively high amounts of nitrogen-containing organic compounds in both gas and particulate phase, while photochemical aging increased especially the concentrations of certain gaseous carbonyls, particularly acid anhydrides.
dc.language.isoenglanti
dc.publisherAmerican Chemical Society (ACS)
dc.relation.ispartofseriesENVIRONMENTAL SCIENCE & TECHNOLOGY
dc.relation.urihttp://dx.doi.org/10.1021/acs.est.7b06269
dc.rightsAll rights reserved
dc.titleVolatile Organic Compounds from Logwood Combustion: Emissions and Transformation under Dark and Photochemical Aging Conditions in a Smog Chamber
dc.description.versionfinal draft
dc.contributor.departmentYmpäristö- ja biotieteiden laitos / Toiminta
dc.contributor.departmentDepartment of Applied Physics, activities
uef.solecris.id54221599en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© American Chemical Society
dc.relation.doi10.1021/acs.est.7b06269
dc.description.reviewstatuspeerReviewed
dc.format.pagerange4979-4988
dc.relation.issn0013-936X
dc.relation.issue8
dc.relation.volume82
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessEi


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