The role of highly oxygenated molecules (HOMs) in determining  the composition of ambient ions in the boreal forest

Bianchi, Federico; Garmash, Olga; He, Xucheng; Yan, Chao; Iyer, Siddharth; Rosendahl, Ida; Xu, Zhengning; Rissanen, Matti P.; Riva, Matthieu; Taipale, Risto; Sarnela, Nina; Petäjä, Tuukka; Worsnop, Douglas R.; Kulmala, Markku; Ehn, Mikael; Junninen, Heikki

doi:https://doi.org/10.5194/acp-17-13819-2017

Articles | Volume 17, issue 22

https://doi.org/10.5194/acp-17-13819-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-13819-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 22

Research article

|

20 Nov 2017

Research article |

| 20 Nov 2017

The role of highly oxygenated molecules (HOMs) in determining the composition of ambient ions in the boreal forest

Federico Bianchi, Olga Garmash, Xucheng He, Chao Yan, Siddharth Iyer, Ida Rosendahl, Zhengning Xu, Matti P. Rissanen, Matthieu Riva, Risto Taipale, Nina Sarnela, Tuukka Petäjä, Douglas R. Worsnop, Markku Kulmala, Mikael Ehn, and Heikki Junninen

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Final revised paper (published on 20 Nov 2017)
Preprint (discussion started on 31 May 2017)

Interactive discussion

Status: closed

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

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RC1: 'comment on "Chemical characterization of atmospheric ions at the High Altitude Research Station Jungfraujoch (Switzerland)"', Anonymous Referee #1, 29 Jun 2017
- AC1: 'Answers to Referee 1', Federico Bianchi, 16 Aug 2017
RC2: 'Review of Bianchi et al. "Insight into naturally-charged [HOMs]..."', Anonymous Referee #2, 05 Jul 2017
- RC3: 'repost garbled comments...', Anonymous Referee #2, 08 Jul 2017
  - AC2: 'Answers to Referee 2', Federico Bianchi, 16 Aug 2017

Peer-review completion

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

AR by Federico Bianchi on behalf of the Authors (17 Aug 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (23 Aug 2017) by Fangqun Yu

RR by Anonymous Referee #2 (12 Sep 2017)

ED: Publish subject to technical corrections (20 Sep 2017) by Fangqun Yu

AR by Federico Bianchi on behalf of the Authors (28 Sep 2017) Author's response Manuscript

Short summary

Naturally charged highly oxidised molecules (HOMs) were characterized using advanced mass spectrometers. Two different classes of compounds, clustered with the nitrate and bisulfate ions, were identified: HOMs containing only carbon, hydrogen and oxygen and nitrogen-containing HOMs or organonitrates (ONs). They exhibit strong diurnal variations where HOMs peak during night and ONs during day. Finally, large clusters containing up to 40 carbon atoms (four oxidized α-pinene units) were observed.