Nitrous acid formation in a snow-free wintertime polluted rural area

Tsai, Catalina; Spolaor, Max; Colosimo, Santo Fedele; Pikelnaya, Olga; Cheung, Ross; Williams, Eric; Gilman, Jessica B.; Lerner, Brian M.; Zamora, Robert J.; Warneke, Carsten; Roberts, James M.; Ahmadov, Ravan; de Gouw, Joost; Bates, Timothy; Quinn, Patricia K.; Stutz, Jochen

doi:https://doi.org/10.5194/acp-18-1977-2018

Articles | Volume 18, issue 3

https://doi.org/10.5194/acp-18-1977-2018

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

https://doi.org/10.5194/acp-18-1977-2018

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

Articles | Volume 18, issue 3

Research article

|

12 Feb 2018

Research article |

| 12 Feb 2018

Nitrous acid formation in a snow-free wintertime polluted rural area

Catalina Tsai, Max Spolaor, Santo Fedele Colosimo, Olga Pikelnaya, Ross Cheung, Eric Williams, Jessica B. Gilman, Brian M. Lerner, Robert J. Zamora, Carsten Warneke, James M. Roberts, Ravan Ahmadov, Joost de Gouw, Timothy Bates, Patricia K. Quinn, and Jochen Stutz

Download

Final revised paper (published on 12 Feb 2018)
Preprint (discussion started on 04 Aug 2017)

Interactive discussion

Status: closed

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

- Printer-friendly version

- Supplement

RC1: 'Review of acp-2017-648', Anonymous Referee #1, 03 Sep 2017
RC2: 'referee comment', Anonymous Referee #2, 13 Sep 2017
AC1: 'Response to Reviewers Comments', Jochen Stutz, 17 Nov 2017

Peer-review completion

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

AR by Jochen Stutz on behalf of the Authors (17 Nov 2017) Author's response Manuscript

ED: Publish as is (05 Dec 2017) by Hang Su

AR by Jochen Stutz on behalf of the Authors (19 Dec 2017)

Short summary

Nitrous acid (HONO) photolysis is an important source of hydroxyl radicals (OH). Vertical HONO fluxes, observed in the snow-free, wintertime Uintah Basin, Utah, USA, show that chemical formation of HONO on the ground closes the HONO budget. Under high NO_x conditions, HONO formation is most likely due to photo-enhanced conversion of NO₂ on the ground. Under moderate to low NO₂ conditions, photolysis of HNO₃ on the ground seems to be the most likely source of HONO.