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| Titel |
Submicron particulate organic matter in the urban atmosphere: a new method for real-time measurement, molecular-level characterization and source apportionment |
| VerfasserIn |
Markus Müller, Philipp Eichler, Barbara D'Anna, Wen Tan, Armin Wisthaler |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250143629
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| Publikation (Nr.) |
 EGU/EGU2017-7368.pdf |
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| Zusammenfassung |
| We used a novel chemical analytical method for measuring submicron particulate organic
matter in the atmosphere of three European cities (Innsbruck, Lyon, Valencia).
Proton-Transfer-Reaction Time-of-Flight Mass Spectrometry (PTR-ToF-MS) was used in
combination with the “chemical analysis of aerosol online" (CHARON) inlet for
detecting particulate organic compounds on-line (i.e. without filter pre-collection), in
real-time (1-min time resolution), at ng m-3 concentrations, with molecular-level
resolution (i.e. obtaining molecular weight and elemental composition information).
The CHARON-PTR-ToF-MS system monitored molecular tracers associated with
different particle sources including levoglucosan from biomass combustion, PAHs
from vehicular traffic, nicotine from cigarette smoking, and monoterpene oxidation
products secondarily formed from biogenic emissions. The tracer information was
used for interpreting positive matrix factorization (PMF) data which allowed us to
apportion the sources of submicron particulate organic matter in the different urban
environments.
This work was funded through the PIMMS ITN, which was supported by the
European Commission’s 7th Framework Programme under grant agreement number
287382. |
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