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dc.contributor.authorLawler, M. J.
dc.contributor.authorWhitehead, J.
dc.contributor.authorO'Dowd, C.
dc.contributor.authorMonahan, C.
dc.contributor.authorMcFiggans, G.
dc.contributor.authorSmith, J. N.
dc.date.accessioned2018-09-20T16:14:09Z
dc.date.available2018-09-20T16:14:09Z
dc.date.issued2014-11-05
dc.identifier.citationLawler, M. J. Whitehead, J.; O'Dowd, C.; Monahan, C.; McFiggans, G.; Smith, J. N. (2014). Composition of 15–85 nm particles in marine air. Atmospheric Chemistry and Physics 14 (21), 11557-11569
dc.identifier.issn1680-7324
dc.identifier.urihttp://hdl.handle.net/10379/12397
dc.description.abstractThe chemical composition of 15-85 nm diameter particles was measured at Mace Head, Ireland, during May 2011 using the TDCIMS (thermal desorption chemical ionization mass spectrometer). Measurable levels of chloride, sodium, and sulfate were present in essentially all collected samples of these particles at this coastal Atlantic site. Acetaldehyde and benzoic acid were also frequently detected. Concomitant particle hygroscopicity observations usually showed a sea-salt mode and a lower hygroscopicity mode with growth factors near to that of ammonium sulfate. There were many periods lasting from hours to about 2 days during which the 10-60 nm particle number increased dramatically in polar oceanic air. These periods were correlated with the presence of benzoic acid in the particles and an increase in the number of lower hygroscopicity mode particles. Very small (< 10 nm) particles were also present, suggesting that new particle formation contributed to these nanoparticle enhancement events.
dc.publisherCopernicus GmbH
dc.relation.ispartofAtmospheric Chemistry and Physics
dc.subjectdifferential mobility analyzer
dc.subjectionization mass-spectrometry
dc.subjectsecondary organic aerosol
dc.subjectboundary-layer
dc.subjectchemical-composition
dc.subjectsize distributions
dc.subjectwater-uptake
dc.subjectnonmethane hydrocarbons
dc.subjectatmospheric particles
dc.subjectnumber concentrations
dc.titleComposition of 15–85 nm particles in marine air
dc.typeArticle
dc.identifier.doi10.5194/acp-14-11557-2014
dc.local.publishedsourcehttp://doi.org/10.5194/acp-14-11557-2014
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