An automated online instrument to quantify aerosol-bound reactive oxygen
species (ROS) for ambient measurement and health-relevant aerosol studies

Wragg, Francis P. H.; Fuller, Stephen J.; Freshwater, Ray; Green, David C.; Kelly, Frank J.; Kalberer, Markus

doi:https://doi.org/10.5194/amt-9-4891-2016

Articles | Volume 9, issue 10

https://doi.org/10.5194/amt-9-4891-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-9-4891-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 10

Research article

|

06 Oct 2016

Research article |

| 06 Oct 2016

An automated online instrument to quantify aerosol-bound reactive oxygen species (ROS) for ambient measurement and health-relevant aerosol studies

Francis P. H. Wragg, Stephen J. Fuller, Ray Freshwater, David C. Green, Frank J. Kelly, and Markus Kalberer

Download

Final revised paper (published on 06 Oct 2016)
Preprint (discussion started on 23 Jun 2016)

Interactive discussion

Status: closed

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

- Printer-friendly version

- Supplement

RC1: 'comments on "An Automated On-line Instrument to Quantify Aerosol-Bound Reactive Oxygen Species (ROS) for Ambient Measurement and Health Relevant Aerosol Studies"', Anonymous Referee #2, 21 Jul 2016
- AC1: 'Response to Referee 1', Markus Kalberer, 14 Sep 2016
RC2: 'an online particle bound ROS instrument', Anonymous Referee #1, 27 Jul 2016
- AC2: 'Answers to Referee 2', Markus Kalberer, 14 Sep 2016

Short summary

A new portable, online instrument was designed, built and characterised to quantify reactive oxygen species (ROS) in atmospheric aerosols for laboratory and field deployment. ROS are potentially major contributors to the toxicity of particles. Our new instrument allows automated quantification of ROS over days with a detection limit of about 4 nmol [H₂O₂] equivalents per cubic metre of air, allowing for continuous atmospheric measurements of this important aerosol toxicity parameter.