How much does traffic contribute to benzene and polycyclic aromatic hydrocarbon air pollution? Results from a high-resolution North American air quality model centred on Toronto, Canada

Whaley, Cynthia H.; Galarneau, Elisabeth; Makar, Paul A.; Moran, Michael D.; Zhang, Junhua

doi:https://doi.org/10.5194/acp-20-2911-2020

Articles | Volume 20, issue 5

https://doi.org/10.5194/acp-20-2911-2020

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

https://doi.org/10.5194/acp-20-2911-2020

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

Articles | Volume 20, issue 5

Research article

|

11 Mar 2020

Research article |

| 11 Mar 2020

How much does traffic contribute to benzene and polycyclic aromatic hydrocarbon air pollution? Results from a high-resolution North American air quality model centred on Toronto, Canada

Cynthia H. Whaley, Elisabeth Galarneau, Paul A. Makar, Michael D. Moran, and Junhua Zhang

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Final revised paper (published on 11 Mar 2020)
Supplement to the final revised paper
Preprint (discussion started on 17 Oct 2019)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Referee Comment #1', Anonymous Referee #1, 15 Nov 2019
RC2: 'unclear motivations for the paper', Anonymous Referee #2, 20 Dec 2019
AC1: 'Authors' response to referees 1 & 2', Cynthia Whaley, 27 Jan 2020

Peer-review completion

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

AR by Cynthia Whaley on behalf of the Authors (27 Jan 2020) Author's response Manuscript

ED: Publish as is (09 Feb 2020) by Ronald Cohen

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Cynthia Whaley on behalf of the Authors (10 Mar 2020) Author's adjustment Manuscript

EA: Adjustments approved (10 Mar 2020) by Ronald Cohen

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Short summary

Benzene and polycyclic aromatic compounds are toxic air pollutants and ubiquitous in the environment. Using a chemical transport model, we have determined the net impact of vehicle emissions on ambient concentrations of these species. Traffic emissions were found to be a significant fraction of ambient pollution in the densely populated modelled region of North America. Our simulations demonstrate the air quality benefits that would result from transitioning to a zero-emission vehicle fleet.