Articles | Volume 16, issue 20
https://doi.org/10.5194/acp-16-13105-2016
https://doi.org/10.5194/acp-16-13105-2016
Research article
 | 
26 Oct 2016
Research article |  | 26 Oct 2016

Quantification of environmentally persistent free radicals and reactive oxygen species in atmospheric aerosol particles

Andrea M. Arangio, Haijie Tong, Joanna Socorro, Ulrich Pöschl, and Manabu Shiraiwa

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Manabu Shiraiwa on behalf of the Authors (04 Oct 2016)  Author's response    Manuscript
ED: Publish as is (12 Oct 2016) by Astrid Kiendler-Scharr (deceased)
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Short summary
We have quantified environmentally persistent free radicals and reactive oxygen species (ROS) in size-segregated atmospheric aerosol particles. We suggest that ROS were formed by decomposition of secondary organic aerosols interacting with transition metal ions and quinones contained in humic-like substances. The results have significant implications for aqueous-phase and cloud processing of organic aerosols as well as adverse health effects upon respiratory deposition of aerosol particles.
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