Articles | Volume 15, issue 8
https://doi.org/10.5194/acp-15-4373-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-4373-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
29 Apr 2015
Research article |
| 29 Apr 2015
Near-highway aerosol and gas-phase measurements in a high-diesel environment
H. L. DeWitt
CORRESPONDING AUTHOR
Aix Marseille Université, CNRS, LCE FRE 3416, 13331 Marseille, France
S. Hellebust
Aix Marseille Université, CNRS, LCE FRE 3416, 13331 Marseille, France
B. Temime-Roussel
Aix Marseille Université, CNRS, LCE FRE 3416, 13331 Marseille, France
S. Ravier
Aix Marseille Université, CNRS, LCE FRE 3416, 13331 Marseille, France
L. Polo
Université Grenoble Alpes, CNRS, LGGE, 38000 Grenoble, France
IFSTTAR, Case 24, 69675 Bron CEDEX, France
V. Jacob
Université Grenoble Alpes, CNRS, LGGE, 38000 Grenoble, France
C. Buisson
IFSTTAR, Case 24, 69675 Bron CEDEX, France
A. Charron
IFSTTAR, Case 24, 69675 Bron CEDEX, France
IFSTTAR, Case 24, 69675 Bron CEDEX, France
A. Pasquier
IFSTTAR, Case 24, 69675 Bron CEDEX, France
J. L. Besombes
Université de Savoie, LCME, 73376 Le Bourget du Lac, France
J. L. Jaffrezo
Université Grenoble Alpes, CNRS, LGGE, 38000 Grenoble, France
H. Wortham
Aix Marseille Université, CNRS, LCE FRE 3416, 13331 Marseille, France
Aix Marseille Université, CNRS, LCE FRE 3416, 13331 Marseille, France
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Latest update: 05 Dec 2025
Short summary
By performing source-apportionment modeling, the amount of primary and secondary organic emissions was resolved from a bulk aerosol data set measured adjacent to a major highway in France. Over 70% of vehicles on this highway were diesel, and a high concentration of BC and NOx were measured. Even close to a major highway, the bulk of the aerosol mass was secondary in nature. Radiocarbon data revealed that most of the fossil organic carbon was from primary vehicular emissions and not from SOA.
By performing source-apportionment modeling, the amount of primary and secondary organic...
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