Development, characterization and first deployment of an improved online reactive oxygen species analyzer

Zhou, Jun; Bruns, Emily A.; Zotter, Peter; Stefenelli, Giulia; Prévôt, André S. H.; Baltensperger, Urs; El-Haddad, Imad; Dommen, Josef

doi:https://doi.org/10.5194/amt-11-65-2018

Articles | Volume 11, issue 1

https://doi.org/10.5194/amt-11-65-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-11-65-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 11, issue 1

Research article

|

09 Jan 2018

Research article |

| 09 Jan 2018

Development, characterization and first deployment of an improved online reactive oxygen species analyzer

Jun Zhou, Emily A. Bruns, Peter Zotter, Giulia Stefenelli, André S. H. Prévôt, Urs Baltensperger, Imad El-Haddad, and Josef Dommen

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Final revised paper (published on 09 Jan 2018)
Supplement to the final revised paper
Preprint (discussion started on 29 May 2017)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Zhou et al', Anonymous Referee #1, 18 Jul 2017
- AC1: 'final author comments to Referee #1-amt-2017-161', Jun Zhou, 30 Oct 2017
RC2: 'Review for amt-2017-161', Anonymous Referee #2, 01 Aug 2017
- AC2: 'final author comments to Referee #2-amt-2017-161', Jun Zhou, 30 Oct 2017

Peer-review completion

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

AR by Jun Zhou on behalf of the Authors (30 Oct 2017) Author's response Manuscript

ED: Publish as is (06 Nov 2017) by Francis Pope

AR by Jun Zhou on behalf of the Authors (07 Nov 2017) Author's response Manuscript

Short summary

Reactive oxygen species (ROS) in the particle phase may induce oxidative stress in the human lungs upon inhalation. Here we present and thoroughly characterize a modified online and offline ROS analyzer. Selected model organic compounds were tested and potential interferences from gas-phase and matrix effects of particulate constituents were evaluated. ROS measurements of filter samples revealed the rapid decay of a substantial ROS fraction, supporting the application of online measurements.