Please use this identifier to cite or link to this item: https://oar.tib.eu/jspui/handle/123456789/784
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dc.rights.licenseCC BY 3.0 Unportedger
dc.contributor.authorSchladitz, A.
dc.contributor.authorMerkel, M.
dc.contributor.authorBastian, S.
dc.contributor.authorBirmili, W.
dc.contributor.authorWeinhold, K.
dc.contributor.authorLöschau, G.
dc.contributor.authorWiedensohler, A.
dc.date.accessioned2017-12-21T08:48:14Z
dc.date.available2019-06-26T17:20:34Z
dc.date.issued2014
dc.identifier.urihttps://oar.tib.eu/jspui/handle/123456789/784
dc.identifier.urihttp://dx.doi.org/10.34657/716-
dc.description.abstractAn automated function control unit was developed to regularly check the ambient particle number concentration derived from a mobility particle size spectrometer as well as its zero-point behaviour. The function control allows unattended quality assurance experiments at remote air quality monitoring or research stations under field conditions. The automated function control also has the advantage of being able to get a faster system stability response than the recommended on-site comparisons with reference instruments. The method is based on a comparison of the total particle number concentration measured by a mobility particle size spectrometer and a condensation particle counter while removing diffusive particles smaller than 20 nm in diameter. In practice, the small particles are removed by a set of diffusion screens, as traditionally used in a diffusion battery. Another feature of the automated function control is to check the zero-point behaviour of the ambient aerosol passing through a high-efficiency particulate air (HEPA) filter. The performance of the function control is illustrated with the aid of a 1-year data set recorded at Annaberg-Buchholz, a station in the Saxon air quality monitoring network. During the period of concern, the total particle number concentration derived from the mobility particle size spectrometer slightly overestimated the particle number concentration recorded by the condensation particle counter by 2 % (grand average). Based on our first year of experience with the function control, we developed tolerance criteria that allow a performance evaluation of a tested mobility particle size spectrometer with respect to the total particle number concentration. We conclude that the automated function control enhances the quality and reliability of unattended long-term particle number size distribution measurements. This will have beneficial effects for intercomparison studies involving different measurement sites, and help provide a higher data accuracy for cohort health and climate research studies.
dc.formatapplication/pdf
dc.languageeng
dc.publisherMünchen : European Geopyhsical Union
dc.relation.ispartofseriesAtmospheric Measurement Techniques, Volume 7, Issue 4, Page 1065-1073-
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/ger
dc.subjectaerosol
dc.subjectair quality
dc.subjectcondensation
dc.subjectdata set
dc.subjectdiffusion
dc.subjectfilter
dc.subjectmeasurement method
dc.subjectmobility
dc.subjectparticle size
dc.subjectspectrometry
dc.subject.ddc550
dc.titleA concept of an automated function control for ambient aerosol measurements using mobility particle size spectrometers
dc.typearticle-
dc.typeText-
dc.description.versionpublishedVersioneng
local.accessRightsopenAccess-
wgl.contributorTROPOSger
wgl.subjectGeowissenschaftenger
wgl.typeZeitschriftenartikelger
dc.relation.doihttps://doi.org/10.5194/amt-7-1065-2014
dcterms.bibliographicCitation.journalTitleAtmospheric Measurement Techniques-
local.identifier.doihttp://dx.doi.org/10.34657/716-
Appears in Collections:Geowissenschaften

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