Articles | Volume 18, issue 3
https://doi.org/10.5194/acp-18-2139-2018
https://doi.org/10.5194/acp-18-2139-2018
Research article
 | 
14 Feb 2018
Research article |  | 14 Feb 2018

Downwind evolution of the volatility and mixing state of near-road aerosols near a US interstate highway

Provat K. Saha, Andrey Khlystov, and Andrew P. Grieshop

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Cited articles

Adachi, K. and Buseck, P. R.: Changes of ns-soot mixing states and shapes in an urban area during CalNex, J. Geophys. Res.-Atmos., 118, 3723–3730, https://doi.org/10.1002/jgrd.50321, 2013.
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Biswas, S., Verma, V., Schauer, J. J., Cassee, F. R., Cho, A. K., and Sioutas, C.: Oxidative Potential of Semi-Volatile and Non Volatile Particulate Matter (PM) from Heavy-Duty Vehicles Retrofitted with Emission Control Technologies, Environ. Sci. Technol., 43, 3905–3912, https://doi.org/10.1021/es9000592, 2009.
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Short summary
We present spatial measurements of particle volatility and mixing state near a US interstate highway. We find that the relative abundance of semi-volatile species in ultrafine particles decreases with downwind distance and the mixing state of roadside aerosols does not change significantly within a few hundred meters from the highway. The results from our study show that exposures and impacts of near-road particles may differ across seasons and under changing ambient conditions.
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