Articles | Volume 19, issue 14
https://doi.org/10.5194/acp-19-9581-2019
https://doi.org/10.5194/acp-19-9581-2019
Research article
 | 
30 Jul 2019
Research article |  | 30 Jul 2019

Effects of inorganic salts on the heterogeneous OH oxidation of organic compounds: insights from methylglutaric acid–ammonium sulfate

Hoi Ki Lam, Sze Man Shum, James F. Davies, Mijung Song, Andreas Zuend, and Man Nin Chan

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Latest update: 20 Nov 2024
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Short summary
We show the presence of dissolved inorganic salts could reduce the overall heterogeneous reactivity of organic compounds with gas–phase OH radicals at the surface by lowering the surface concentration of organic compounds. Until recently, the kinetic parameters reported in the literature were mostly measured based on experiments with pure organic particles. The lifetime of organic compounds or chemical tracers against heterogeneous OH reaction in the atmosphere could be longer than expected.
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