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ACP | Articles | Volume 19, issue 23
Atmos. Chem. Phys., 19, 14703–14720, 2019
https://doi.org/10.5194/acp-19-14703-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

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
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

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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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.
Reactive oxygen species (ROS) are believed to contribute to the adverse health effects of...
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