Articles | Volume 19, issue 23
Atmos. Chem. Phys., 19, 14703–14720, 2019
https://doi.org/10.5194/acp-19-14703-2019

Special issue: Simulation chambers as tools in atmospheric research (AMT/ACP/GMD...

Atmos. Chem. Phys., 19, 14703–14720, 2019
https://doi.org/10.5194/acp-19-14703-2019

Research article 05 Dec 2019

Research article | 05 Dec 2019

Predominance of secondary organic aerosol to particle-bound reactive oxygen species activity in fine ambient aerosol

Jun Zhou et al.

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Predominance of secondary organic aerosol to particle-bound reactive oxygen species activity in fine ambient aerosol J. Zhou and J. Dommen https://doi.org/10.5281/zenodo.3520219

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Short summary
Reactive oxygen species (ROS) are believed to contribute to the adverse health effects of aerosols. We measured particle-bound ROS (PB-ROS) with an online instrument in two distinct environments, i.e., Beijing (China) and Bern (Switzerland). In both cities these exogenic ROS are predominantly related to secondary organic aerosol (SOA). PB-ROS content in SOA from various anthropogenic emission sources tested in the laboratory was comparable to that in the ambient measurements.
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