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<div class="csl-entry">Bamford, S. A. (2008). <i>Optimized determination of elemental concentrations in airborne particulate matter using X-ray emission techniques</i> [Dissertation, Technische Universität Wien]. reposiTUm. https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:1-28983</div>
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Gravimetric and elemental concentration analayses have been carried out on airborne particulate matter sampled in an urban residential area.The data and derived information were generated from daily sampling of PM10, PM2.5 and coarse particle fractions for a period of five months, including both winter and summer seasons.The air filter samples were collected with the Gent sampler and the EU sampler LVS3.<br />Whereas summer airborne particle mass concentrations were always below the PM10 limit value of 50ug/m3, winter mass concentrations had over twenty exceedances. More information was obtained through determination of elemental concentrations by PIXE and EDXRF analysis. The PIXE procudure was optimized using proton energy of 2 MeV, with 24 um Mylar foil between sample and detector, and proton beam of 7 mm wide. The EDXRF method was also optimized through careful selection of secondary targets and evaluation models. The elements identified and quantified with PIXE and EDXRF analysis of the air filter samples were: Al, Si, S, Cl, K, Ca. Ti, Fe, Cu, Zn, and Pb. Validation of the quantitative methods with the standard air filter SRM2783 gave reasonable agreement for most elements analyzed. Correleation tests on selected elemnts enabled identification of some of the sources of pollution as emanating from dust particles, vehicular combustion, and combustion from fossil fuels used for heating during winter. The elemental concentration analysis gave additional information than was possible simply with gravimetric analysis alone. A muliti-orifice impactor sampler "DEKATI" was also modified to enable direct deposition of particulates on a reflector for subsequent analysis by TXRF.<br />
en
dc.language
English
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dc.language.iso
en
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dc.rights.uri
http://rightsstatements.org/vocab/InC/1.0/
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dc.subject
Aerosol Analyse
de
dc.subject
Röntgenemissionstechniken
de
dc.subject
PIXE und EDXRF
de
dc.subject
Elementanalyse
de
dc.subject
Vergleich von Luftproben Sammlern
de
dc.subject
airborne particulates
en
dc.subject
X-ray emission techniques
en
dc.subject
PIXE and EDXRF
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dc.subject
elemental analysis
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dc.subject
comparison of air samplers
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dc.title
Optimized determination of elemental concentrations in airborne particulate matter using X-ray emission techniques
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dc.type
Thesis
en
dc.type
Hochschulschrift
de
dc.rights.license
In Copyright
en
dc.rights.license
Urheberrechtsschutz
de
dc.contributor.affiliation
TU Wien, Österreich
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dc.rights.holder
Samuel Akoto Bamford
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tuw.version
vor
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tuw.thesisinformation
Technische Universität Wien
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tuw.publication.orgunit
E141 - Atominstitut der Österreichischen Universitäten