Water-soluble iron emitted from vehicle exhaust is linked to primary speciated organic compounds

Salazar, Joseph R.; Cartledge, Benton T.; Haynes, John P.; York-Marini, Rachel; Robinson, Allen L.; Drozd, Greg T.; Goldstein, Allen H.; Fakra, Sirine C.; Majestic, Brian J.

doi:https://doi.org/10.5194/acp-20-1849-2020

Articles | Volume 20, issue 3

https://doi.org/10.5194/acp-20-1849-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-1849-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 3

Research article

|

17 Feb 2020

Research article |

| 17 Feb 2020

Water-soluble iron emitted from vehicle exhaust is linked to primary speciated organic compounds

Joseph R. Salazar, Benton T. Cartledge, John P. Haynes, Rachel York-Marini, Allen L. Robinson, Greg T. Drozd, Allen H. Goldstein, Sirine C. Fakra, and Brian J. Majestic

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Final revised paper (published on 17 Feb 2020)
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Preprint (discussion started on 19 Sep 2019)
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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 of acp-2019-386, Salazar et al.', Anonymous Referee #2, 10 Oct 2019
RC2: 'Salazar et al', Anonymous Referee #1, 03 Nov 2019
AC1: 'responce to reviewer', Joseph Salazar, 13 Dec 2019
AC2: 'Response to Reviewer 2', Joseph Salazar, 14 Dec 2019

Peer-review completion

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

AR by Joseph Salazar on behalf of the Authors (14 Dec 2019) Author's response Manuscript

ED: Publish subject to technical corrections (15 Jan 2020) by Harald Saathoff

AR by Joseph Salazar on behalf of the Authors (20 Jan 2020) Manuscript

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Short summary

The solubility of atmospheric iron is important in human health and environmental chemistry. To understand the origin of water-soluble iron in urban areas, tailpipe emissions were collected from 32 low-emitting vehicles, from which iron solubility averaged 30 % (0–82 %), more than 10 times the average in the Earth's crust. Water-soluble iron was independent of almost all exhaust components and of the iron phase in the particles but was correlated with specific exhaust-derived organic compounds.