Atmospheric loss of nitrous oxide (N2O) is not influenced by its potential reactions with OH and NO3 radicals

Abstract : The rate coefficient for the possible reaction of OH radical with N 2 O was determined to be k1 < 1 × 10-17 cm 3 molecule-1 s-1 between 253 and 372 K using pulsed laser photolysis to generate OH radicals and pulsed laser induced fluorescence to detect them. The rate coefficient for the reaction of NO3 radical with N2O was measured to be k2 < 5 × 10-20 cm 3 molecule-1 s-1 at 298 K using a direct method that involves a larger reaction chamber equipped with cavity ring down spectroscopic detection of NO3 and N2O5. Various tests were carried out ensure the accuracy of our measurements. Based on our measured upper limits, we suggest that these two reactions alter the atmospheric lifetime of N2O of ~120 years by less than 4%.
Document type :
Journal articles
Complete list of metadatas

Cited literature [17 references]  Display  Hide  Download

https://hal-insu.archives-ouvertes.fr/insu-02373036
Contributor : Nathalie Pothier <>
Submitted on : Wednesday, November 20, 2019 - 5:09:05 PM
Last modification on : Monday, January 27, 2020 - 4:08:02 PM

Files

 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : 2020-05-20

Please log in to resquest access to the document

Licence


Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives 4.0 International License

Identifiers

Citation

A Ravishankara, Anne-Laure Pelé, Li Zhou, Yangang Ren, Antonia Zogka, et al.. Atmospheric loss of nitrous oxide (N2O) is not influenced by its potential reactions with OH and NO3 radicals. Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2019, 44, ⟨10.1039/C9CP04818A⟩. ⟨insu-02373036⟩

Share

Metrics

Record views

52