Articles | Volume 19, issue 18
Atmos. Chem. Phys., 19, 11953–11968, 2019
https://doi.org/10.5194/acp-19-11953-2019
Atmos. Chem. Phys., 19, 11953–11968, 2019
https://doi.org/10.5194/acp-19-11953-2019

Research article 25 Sep 2019

Research article | 25 Sep 2019

Diurnal variability, photochemical production and loss processes of hydrogen peroxide in the boundary layer over Europe

Horst Fischer et al.

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Short summary
We use in situ observations of H2O2 to study the interplay between photochemistry, transport and deposition processes. The data were obtained during five ground-based field campaigns across Europe. A budget calculation indicates that the photochemical production rate was much larger than photochemical loss and that dry deposition is the dominant loss process. To reproduce the change in H2O2 mixing ratios after sunrise, a variable contribution of entrainment from the residual layer is required.
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