Molecular corridors and kinetic regimes in the multiphase chemical evolution of secondary organic aerosol

Shiraiwa, M.; Berkemeier, T.; Schilling-Fahnestock, K. A.; Seinfeld, J. H.; Pöschl, U.

doi:https://doi.org/10.5194/acp-14-8323-2014

Articles | Volume 14, issue 16

https://doi.org/10.5194/acp-14-8323-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-14-8323-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 16

Research article

| Highlight paper

|

20 Aug 2014

Research article | Highlight paper |

| 20 Aug 2014

Molecular corridors and kinetic regimes in the multiphase chemical evolution of secondary organic aerosol

M. Shiraiwa, T. Berkemeier, K. A. Schilling-Fahnestock, J. H. Seinfeld, and U. Pöschl

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Final revised paper (published on 20 Aug 2014)
Supplement to the final revised paper
Preprint (discussion started on 06 Mar 2014)

Interactive discussion

Status: closed

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

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RC C885: 'Comments to Shiraiwa et al. 2014 Atmos. Chem. Phys. Discuss.', Anonymous Referee #1, 28 Mar 2014
- AC C3717: 'Response to Referee 1', Manabu Shiraiwa, 17 Jun 2014
RC C2292: 'Suggestions and Recommendation by Reviewer', Anonymous Referee #2, 11 May 2014
- AC C3718: 'Response to Referee 2', Manabu Shiraiwa, 17 Jun 2014

Peer-review completion

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

AR by Manabu Shiraiwa on behalf of the Authors (17 Jun 2014) Author's response Manuscript

ED: Referee Nomination & Report Request started (18 Jun 2014) by Maria Cristina Facchini

RR by Anonymous Referee #1 (03 Jul 2014)

Suggestions for revision or reasons for rejection

In the revised manuscript, the authors made important improvements. In the revision, the authors clarified a number of concerns that both reviewers have raised. The chemical understanding of the proposed molecular corridors was especially improved. However, there are still several issues that they need to address before publication in ACP.

1. In the Introduction section, the authors mentioned that only 10-30% of SOA have been identified using common techniques. The reference is from ambient studies. How about the general mass closure for the lab studies used in this paper? If the identified percentage is low, the authors need to clarify that the data points used here are sufficient to represent the entire SOA behavior.

2. In the revised manuscript, the authors indicate that the recent advent of soft ionization methods that facilitate the identification of the dominant fraction of the compounds constituting SOA opens up a window onto the pathways of SOA formation and aging that was heretofore unavailable. This is not entirely consistent with the results. In the molecular corridors shown in Figure 1, the biogenic plots are from traditional analytical methods. The alkane-derived SOA constituents obtained from soft ionization methods provide a larger number of data points and better credibility. But it doesn’t necessarily make a huge difference if only using data from traditional methods. In another word, this study could still be performed with only the traditional analytical methods; new techniques do not “open up a window” in terms of the content of this study, just providing more data points. Some of the sentences need to be rewritten.

3. In the revised manuscript, the authors explained why the biogenic SOA data from different NO conditions are shown in one plot (fewer data points and relatively tight molecular corridors). The authors also mentioned, “the molecular corridors of alkane SOA formed under low and high NO conditions are also quite similar”. So the alkane SOA data under different NO conditions were shown separately only because too many products were observed under each condition? If so, need to clarify.

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ED: Reconsider after minor revisions (Editor review) (12 Jul 2014) by Maria Cristina Facchini

AR by Manabu Shiraiwa on behalf of the Authors (15 Jul 2014) Author's response Manuscript

ED: Publish as is (16 Jul 2014) by Maria Cristina Facchini

AR by Manabu Shiraiwa on behalf of the Authors (17 Jul 2014)

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