Photochemistry of OIO: Laboratory study and atmospheric implications

Gómez Martín, Juan C., Ashworth, Stephen, Mahajan, Anoop S. and Plane, John M. C. (2009) Photochemistry of OIO: Laboratory study and atmospheric implications. Geophysical Research Letters, 36 (9). ISSN 1944-8007

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Abstract

Iodine chemistry influences the oxidizing capacity of the atmosphere, principally by depleting ozone, and induces the formation of new particles in the marine boundary layer. The photochemistry of iodine dioxide (OIO) plays a key role in both these processes. Here we report that OIO photolyses in the visible (480–650 nm), yielding iodine atoms with a quantum efficiency of unity (1.07 ± 0.15). As a result, much smaller sources of iodine precursors are required to cause significant ozone depletion, which has important implications for the marine boundary layer ozone budget.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
University of East Anglia > Faculty of Science > Research Groups > Physical and Analytical Chemistry
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Depositing User: Rachel Smith
Date Deposited: 10 Feb 2011 16:28
Last Modified: 25 Jul 2018 04:51
URI: https://ueaeprints.uea.ac.uk/id/eprint/21118
DOI: 10.1029/2009GL037642

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