Effects of marine fuel sulfur restrictions on particle number concentrations and size distributions in ship plumes in the Baltic Sea

Seppälä, Sami D.; Kuula, Joel; Hyvärinen, Antti-Pekka; Saarikoski, Sanna; Rönkkö, Topi; Keskinen, Jorma; Jalkanen, Jukka-Pekka; Timonen, Hilkka

doi:https://doi.org/10.5194/acp-21-3215-2021

Articles | Volume 21, issue 4

https://doi.org/10.5194/acp-21-3215-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-3215-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 4

Research article

|

03 Mar 2021

Research article |

| 03 Mar 2021

Effects of marine fuel sulfur restrictions on particle number concentrations and size distributions in ship plumes in the Baltic Sea

Sami D. Seppälä, Joel Kuula, Antti-Pekka Hyvärinen, Sanna Saarikoski, Topi Rönkkö, Jorma Keskinen, Jukka-Pekka Jalkanen, and Hilkka Timonen

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Preprint (discussion started on 05 Oct 2020)
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Interactive discussion

Status: closed

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

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RC1: 'Review Seppälä et al., manuscript no. 2020-946. Review by Adam Kristensson, Lund University, Lund, Sweden', Adam Kristensson, 23 Oct 2020
RC2: 'Referee comment', Anonymous Referee #2, 17 Nov 2020
AC1: 'Comment on acp-2020-946', Sami Seppälä, 29 Dec 2020

Peer-review completion

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

AR by Sami Seppälä on behalf of the Authors (29 Dec 2020) Author's response Manuscript

ED: Publish as is (02 Jan 2021) by Veli-Matti Kerminen

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Short summary

The effects of fuel sulfur content restrictions implemented by the International Maritime Organization in the Baltic Sea (in July 2010 and January 2015) on the particle properties of ship exhaust plumes and ambient aerosol were studied. The restrictions reduced the particle number concentrations and median particle size in plumes and number concentrations in ambient aerosol. These changes may improve human health in coastal areas and decrease the cooling effect of exhaust emissions from ships.