Heterogeneous reaction of peroxyacetic acid and hydrogen peroxide on ambient aerosol particles under dry and humid conditions: kinetics, mechanism and implications

Wu, Q. Q.; Huang, L. B.; Liang, H.; Zhao, Y.; Huang, D.; Chen, Z. M.

doi:https://doi.org/10.5194/acp-15-6851-2015

Articles | Volume 15, issue 12

https://doi.org/10.5194/acp-15-6851-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-6851-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 12

Research article

|

23 Jun 2015

Research article |

| 23 Jun 2015

Heterogeneous reaction of peroxyacetic acid and hydrogen peroxide on ambient aerosol particles under dry and humid conditions: kinetics, mechanism and implications

Q. Q. Wu, L. B. Huang, H. Liang, Y. Zhao, D. Huang, and Z. M. Chen

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Final revised paper (published on 23 Jun 2015)
Preprint (discussion started on 26 Feb 2015)

Interactive discussion

Status: closed

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

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- Supplement

RC C603: 'Needs major and minor revisions', Anonymous Referee #1, 09 Mar 2015
- AC C3133: 'Response to Referee #1', Zhongming Chen, 01 Jun 2015
RC C1127: 'Comment', Jianmin Chen, 26 Mar 2015
- AC C3134: 'Response to Dr. Chen', Zhongming Chen, 01 Jun 2015
RC C1187: 'reviewer comment', Anonymous Referee #3, 29 Mar 2015
- AC C3135: 'Response to Referee #3', Zhongming Chen, 01 Jun 2015

Peer-review completion

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

AR by Zhongming Chen on behalf of the Authors (01 Jun 2015) Author's response Manuscript

ED: Publish subject to technical corrections (06 Jun 2015) by Sergey A. Nizkorodov

Technical corrections recommended prior to the ACP publication

L24: than is H2O2 -> than H2O2 is

L25: … that of PAA, while the less RH sensitivity of H2O2, we suggest… -> … that of PAA, the smaller RH sensitivity of H2O2 uptake coefficient suggests…

L52, L143, L361,: comma needed after "e.g."

R2: oxygen molecule product is missing in reaction R(2)

L56: pathway -> loss

L59: Whereas when -> When

L85: undertake -> use

L114: was 1.3 M, which… -> was 1.3 M. The solution …

L126: was -> is

L190: the concentration of the molecule number -> the number concentration

L192: the Kelvin temperature -> the temperature

L217: was ultrasonic in ice -> was exposed to ultrasonic treatment in ice

Line 238: both the … and the BET … can not … -> neither the … nor the BET… can…

Eq 6: formatting on "ln" is different from that used in the rest of the equations

L259: use -> used

Eqs. 11-13: the unit used for A needs to be specified below the equations

L318: Fig. 6 -> Fig. 6b

L320: if physical -> if a physical

L322: 100 times that -> 100 times longer than that

L409: I do not understand the meaning of "physical dominated"

L425: acidic ions -> ions of strong acids

L439: studies -> studied

L464: mineral -> minerals

L484: the chemical processes -> chemical processes

L504: compared with the physical processes, the chemical process dominates -> chemical processes dominate

L523: against -> with respect to

L600: Anab InitioStudy -> An ab Initio Study

L740: Photoch. Photobio. -> Photochem. Photobiol.

L801: inconsistent capitalization in the title

Figure 1: I included this comment in my initial review but this still remains an issue. Lines in Figure 1 are so thin that only half of them got printed on my b/w printer. Consider making the line thickness larger

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AR by Zhongming Chen on behalf of the Authors (07 Jun 2015) Author's response Manuscript

Short summary

The present study provides the first measurement for the uptake coefficient of gaseous peroxide compounds including peroxyacetic acid and hydrogen peroxide on the ambient particles (PM2.5 and Asian Storm Dust) over a wide range of relative humidity. The measured uptake coefficient values suggest that the heterogeneous reaction on the ambient particles plays an important role in the atmospheric budgets of peroxide compounds and potentially affects the components of aerosols in the atmosphere.