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

Enroth, Joonas; Saarikoski, Sanna; Niemi, Jarkko; Kousa, Anu; Ježek, Irena; Močnik, Griša; Carbone, Samara; Kuuluvainen, Heino; Rönkkö, Topi; Hillamo, Risto; Pirjola, Liisa

doi:https://doi.org/10.5194/acp-16-5497-2016

Articles | Volume 16, issue 9

https://doi.org/10.5194/acp-16-5497-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-5497-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 9

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, Sanna Saarikoski, Jarkko Niemi, Anu Kousa, Irena Ježek, Griša Močnik, Samara Carbone, Heino Kuuluvainen, Topi Rönkkö, Risto Hillamo, and Liisa Pirjola

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Final revised paper (published on 03 May 2016)
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Preprint (discussion started on 18 Jan 2016)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Review of MS acp-2015-1026, titled "Chemical and physical characterization of traffic particles in four different highway environments in the Helsinki metropolitan area", by J. Enroth et al.', Anonymous Referee #1, 19 Feb 2016
RC2: 'Review comment', Anonymous Referee #2, 07 Mar 2016
AC1: 'Reply to Referee #1', Liisa Pirjola, 07 Apr 2016
AC2: 'Reply to Referee #2', Liisa Pirjola, 07 Apr 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Anna Wenzel on behalf of the Authors (08 Apr 2016) Author's response Manuscript

ED: Publish subject to technical corrections (16 Apr 2016) by Ryan Sullivan

AR by Liisa Pirjola on behalf of the Authors (18 Apr 2016) Author's response Manuscript

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Short summary

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.