Articles | Volume 15, issue 8
Atmos. Chem. Phys., 15, 4373–4387, 2015
https://doi.org/10.5194/acp-15-4373-2015
Atmos. Chem. Phys., 15, 4373–4387, 2015
https://doi.org/10.5194/acp-15-4373-2015

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 et al.

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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.
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