Articles | Volume 22, issue 18
Atmos. Chem. Phys., 22, 12367–12386, 2022
https://doi.org/10.5194/acp-22-12367-2022
Atmos. Chem. Phys., 22, 12367–12386, 2022
https://doi.org/10.5194/acp-22-12367-2022
Research article
21 Sep 2022
Research article | 21 Sep 2022

Evaluating the contribution of the unexplored photochemistry of aldehydes on the tropospheric levels of molecular hydrogen (H2)

Maria Paula Pérez-Peña et al.

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Short summary
We used two atmospheric models to test the implications of previously unexplored aldehyde photochemistry on the atmospheric levels of molecular hydrogen (H2). We showed that the new photochemistry from aldehydes produces more H2 over densely forested areas. Compared to the rest of the world, it is over these forested regions where the produced H2 is more likely to be removed. The results highlight that other processes that contribute to atmospheric H2 levels should be studied further.
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