Articles | Volume 16, issue 9
Atmos. Chem. Phys., 16, 5497–5512, 2016
https://doi.org/10.5194/acp-16-5497-2016
Atmos. Chem. Phys., 16, 5497–5512, 2016
https://doi.org/10.5194/acp-16-5497-2016

Research article 03 May 2016

Research article | 03 May 2016

Chemical and physical characterization of traffic particles in four different highway environments in the Helsinki metropolitan area

Joonas Enroth et al.

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Cited articles

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This paper presents a comprehensive summary of roadside measurements using a mobile laboratory, equipped with state-of-the-art instrumentation. Pollution gradients were observed for particle number, black carbon, organics, some metals, and gases at four different highway environments. Flow dynamics appeared to be an important factor, however, at the most open site, condensation of semi-volatile organics was observed. The fleet average NO2 emission factor increased over the last decade.
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