Sources and characteristics of summertime organic aerosol in the Colorado Front Range: perspective from measurements and WRF-Chem modeling

Bahreini, Roya; Ahmadov, Ravan; McKeen, Stu A.; Vu, Kennedy T.; Dingle, Justin H.; Apel, Eric C.; Blake, Donald R.; Blake, Nicola; Campos, Teresa L.; Cantrell, Chris; Flocke, Frank; Fried, Alan; Gilman, Jessica B.; Hills, Alan J.; Hornbrook, Rebecca S.; Huey, Greg; Kaser, Lisa; Lerner, Brian M.; Mauldin, Roy L.; Meinardi, Simone; Montzka, Denise D.; Richter, Dirk; Schroeder, Jason R.; Stell, Meghan; Tanner, David; Walega, James; Weibring, Peter; Weinheimer, Andrew

doi:https://doi.org/10.5194/acp-18-8293-2018

Articles | Volume 18, issue 11

https://doi.org/10.5194/acp-18-8293-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-8293-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 11

Research article

|

14 Jun 2018

Research article |

| 14 Jun 2018

Sources and characteristics of summertime organic aerosol in the Colorado Front Range: perspective from measurements and WRF-Chem modeling

Roya Bahreini, Ravan Ahmadov, Stu A. McKeen, Kennedy T. Vu, Justin H. Dingle, Eric C. Apel, Donald R. Blake, Nicola Blake, Teresa L. Campos, Chris Cantrell, Frank Flocke, Alan Fried, Jessica B. Gilman, Alan J. Hills, Rebecca S. Hornbrook, Greg Huey, Lisa Kaser, Brian M. Lerner, Roy L. Mauldin, Simone Meinardi, Denise D. Montzka, Dirk Richter, Jason R. Schroeder, Meghan Stell, David Tanner, James Walega, Peter Weibring, and Andrew Weinheimer

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Preprint (discussion started on 24 Jan 2018)
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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 Bahreini', Anonymous Referee #1, 22 Feb 2018
- AC1: 'Response to reviewers', Roya Bahreini, 03 May 2018
RC2: 'Review', Anonymous Referee #2, 01 Mar 2018
RC3: 'Referee Report', Anonymous Referee #3, 19 Mar 2018

Peer-review completion

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

AR by Roya Bahreini on behalf of the Authors (03 May 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (04 May 2018) by Lynn M. Russell

RR by Anonymous Referee #2 (23 May 2018)

ED: Publish as is (23 May 2018) by Lynn M. Russell

AR by Roya Bahreini on behalf of the Authors (26 May 2018) Author's response Manuscript

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Short summary

We measured organic aerosol (OA) and relevant trace gases during FRAPPÉ in the Colorado Front Range, with the goal of characterizing summertime OA formation. Our results indicate a significant production of secondary OA (SOA) in this region. About 2 μg m⁻³ of OA was present at background CO levels, suggesting contribution of non-combustion sources to SOA. Contribution of oil- and gas-related activities to anthropogenic SOA was modeled to be ~38 %. Biogenic SOA contributed to >40 % of OA.