The number fraction of iron-containing particles affects OH, HO2 and H2O2 budgets in the atmospheric aqueous phase

Khaled, Amina; Zhang, Minghui; Ervens, Barbara

doi:https://doi.org/10.5194/acp-22-1989-2022

Articles | Volume 22, issue 3

https://doi.org/10.5194/acp-22-1989-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-1989-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 3

Research article

|

11 Feb 2022

Research article |

| 11 Feb 2022

The number fraction of iron-containing particles affects OH, HO₂ and H₂O₂ budgets in the atmospheric aqueous phase

Amina Khaled, Minghui Zhang, and Barbara Ervens

Supplement

https://doi.org/10.5194/acp-22-1989-2022-supplement

Data sets

Data: Model output, Khaled et al., 2022, The number fraction of iron-containing particles affects OH, HO2, and H2O2 budgets in the atmospheric aqueous phase Barbara Ervens https://doi.org/10.5281/zenodo.5829360

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Short summary

Chemical reactions with iron in clouds and aerosol form and cycle reactive oxygen species (ROS). Previous model studies assumed that all cloud droplets (particles) contain iron, while single-particle analyses showed otherwise. By means of a model, we explore the bias in predicted ROS budgets by distributing a given iron mass to either all or only a few droplets (particles). Implications for oxidation potential, radical loss and iron oxidation state are discussed.