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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 17, issue 6 | Copyright
Atmos. Chem. Phys., 17, 4229-4249, 2017
https://doi.org/10.5194/acp-17-4229-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 29 Mar 2017

Research article | 29 Mar 2017

Evaluation of the absorption Ångström exponents for traffic and wood burning in the Aethalometer-based source apportionment using radiocarbon measurements of ambient aerosol

Peter Zotter et al.
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Mirena Feist-Polner on behalf of the Authors (31 Jan 2017)  Author's response
ED: Reconsider after minor revisions (Editor review) (16 Feb 2017) by Willy Maenhaut
AR by Svenja Lange on behalf of the Authors (22 Feb 2017)  Author's response    Manuscript
ED: Reconsider after minor revisions (Editor review) (24 Feb 2017) by Willy Maenhaut
AR by Svenja Lange on behalf of the Authors (27 Feb 2017)  Author's response    Manuscript
ED: Publish as is (27 Feb 2017) by Willy Maenhaut
Publications Copernicus
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Short summary
Most studies use a single Ångström exponent for wood burning (αWB) and traffic (αTR) emissions in the Aethalometer model, used for source apportionment of black carbon, derived from previous work. However, accurate determination of the α values is currently lacking. Comparing radiocarbon measurements (14C) with the Aehtalometer model, good agreement was found, indicating that the Aethalometer model reproduces reasonably well the 14C results using our best estimate of a single αWB and αTR.
Most studies use a single Ångström exponent for wood burning (αWB) and traffic (αTR) emissions...
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