Cloud forming potential of secondary organic aerosol under near atmospheric conditions

dc.contributor.authorDuplissy, Jonathan
dc.contributor.authorGysel, Martin
dc.contributor.authorAlfarra, M. Rami
dc.contributor.authorDommen, Josef
dc.contributor.authorMetzger, Axel
dc.contributor.authorPrévôt, André S.H.
dc.contributor.authorWeingartner, Ernest
dc.contributor.authorLaaksonen, Ari
dc.contributor.authorRaatikainen, Tomi
dc.contributor.authorGood, Nicholas
dc.contributor.authorTurner, S. Fiona
dc.contributor.authorMcFiggans, Gordon
dc.contributor.authorBaltensperger, Urs
dc.date.accessioned2024-08-13T13:45:02Z
dc.date.available2024-08-13T13:45:02Z
dc.date.issued2008
dc.description.abstractCloud droplets form by nucleation on atmospheric aerosol particles. Populations of such particles invariably contain organic material, a major source of which is thought to be condensation of photo‐oxidation products of biogenic volatile organic compounds (VOCs). We demonstrate that smog chamber studies of the formation of such biogenic secondary organic aerosol (SOA) formed during photo‐oxidation must be conducted at near atmospheric concentrations to yield atmospherically representative particle composition, hygroscopicity and cloud‐forming potential. Under these conditions, the hygroscopicity measured at 95% relative humidity can be used reliably to predict the CCN activity of the SOA particles by assuming droplet surface tension of pure water. We also show that the supersaturation required to activate a given size of particle decreases with age.
dc.identifier.doi10.1029/2007gl031075
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.urihttps://irf.fhnw.ch/handle/11654/46688
dc.issue3
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofGeophysical Research Letters
dc.spatialHoboken
dc.subject.ddc550 - Geowissenschaften
dc.titleCloud forming potential of secondary organic aerosol under near atmospheric conditions
dc.type01A - Beitrag in wissenschaftlicher Zeitschrift
dc.volume35
dspace.entity.typePublication
fhnw.InventedHereNo
fhnw.ReviewTypeAnonymous ex ante peer review of a complete publication
fhnw.affiliation.hochschuleHochschule für Technikde_CH
fhnw.affiliation.institutlnstitut für Sensorik und Elektronikde_CH
fhnw.openAccessCategoryClosed
fhnw.publicationStatePublished
relation.isAuthorOfPublication54997bb8-cf4a-4120-b0c7-f8e731e8eea1
relation.isAuthorOfPublication05dd9a19-7a24-4325-805a-2d121483b168
relation.isAuthorOfPublication.latestForDiscovery05dd9a19-7a24-4325-805a-2d121483b168
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