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| Titel |
Stable carbon isotope ratio analysis of biomass burning tracers in ambient aerosol |
| VerfasserIn |
Iulia Gensch, Xuefang Sang, Werner Laumer, Chuen Y. Chan, Guenter Engling, Astrid Kiendler-Scharr |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250098358
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| Publikation (Nr.) |
 EGU/EGU2014-14028.pdf |
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| Zusammenfassung |
| Due to the potential to fingerprint emissions as well as chemical and physical processes in the
atmosphere, stable isotopes are considered as a promising tool to improve our understanding
of sources and atmospheric fate of organic aerosol.
In this study, compound specific isotopic measurements of levoglucosan by employing
Thermal Desorption - Two Dimensional Gas Chromatography - Isotopic Ratio Mass
Spectrometry (TD-2DGC-IRMS) are presented for ambient aerosol sampled during
biomass burning episodes at rural, suburban and urban sites in Guangdong province, China.
Further, information on the origin and pathways of the probed air masses is given, based on
back trajectories calculated with the Lagrangian particle dispersion model FLEXPART from
ECMWF meteorological data.
The results combining observed δ13C for levoglucosan with back trajectory analyses will
be discussed in relation to the potential of using compound specific δ13C measurements for
improved source apportionment and determining the photochemical age of organic molecular
markers. |
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