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| Titel |
The isotopic composition of CO in vehicle exhaust |
| VerfasserIn |
Stijn Naus, Thomas Röckmann, Elena Popa |
| 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 |
250149252
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| Publikation (Nr.) |
 EGU/EGU2017-13585.pdf |
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| Zusammenfassung |
| The isotopic composition of atmospheric carbon monoxide (CO) and its sources can be a
powerful tool to help constrain the CO budget, but data on the isotopic composition of CO
sources is sparse. We investigated the isotopic composition (13C16O and 12C18O) of one of
the main sources of CO in urban areas: traffic emissions. Samples from individual
passenger cars and atmospheric samples from polluted areas were measured. The results
show strong indications that CO emissions from traffic are dominated by a small
subset of cars or driving conditions, which, in this study, were cold petrol cars.
The spread in isotopic composition of the full dataset was large, but this dominant
subset showed a relatively stable isotopic composition. Therefore, the individual car
samples result in a well-defined overall traffic signature, which was in agreement
with the atmospheric isotopic signature derived from the atmospheric samples. |
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