Articles | Volume 20, issue 21
Atmos. Chem. Phys., 20, 13417–13424, 2020
https://doi.org/10.5194/acp-20-13417-2020
Atmos. Chem. Phys., 20, 13417–13424, 2020
https://doi.org/10.5194/acp-20-13417-2020

Technical note 12 Nov 2020

Technical note | 12 Nov 2020

Technical Note: Effect of varying the λ = 185 and 254 nm photon flux ratio on radical generation in oxidation flow reactors

Jake P. Rowe et al.

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AR by Andrew Lambe on behalf of the Authors (29 Sep 2020)  Author's response    Manuscript
ED: Publish as is (05 Oct 2020) by Eliza Harris
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Short summary
We conducted a series of experiments in which the 185 to 254 nm photon flux ratio (I185 : I254) emitted by low-pressure mercury lamps installed in an oxidation flow reactor (OFR) was systematically varied using multiple novel lamp configurations. Integrated OH exposure values achieved for each lamp type were obtained as a function of OFR operating conditions. A photochemical box model was used to develop a generalized OH exposure estimation equation as a function of [H2O], [O3], and OH reactivity.
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