Articles | Volume 16, issue 19
https://doi.org/10.5194/acp-16-12703-2016
https://doi.org/10.5194/acp-16-12703-2016
Research article
 | 
12 Oct 2016
Research article |  | 12 Oct 2016

Photolysis of frozen iodate salts as a source of active iodine in the polar environment

Óscar Gálvez, M. Teresa Baeza-Romero, Mikel Sanz, and Alfonso Saiz-Lopez

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Cited articles

Abad, L., Bermejo, D., Herrero, V. J., Santos, J., and Tanarro, I.: Performance of a solenoid driven pulsed molecular beam source, Rev. Sci. Instrum., 66, 3826–3832, https://doi.org/10.1063/1.1145444, 1995.
Allan, J. D., Williams, P. I., Najera, J., Whitehead, J. D., Flynn, M. J., Taylor, J. W., Liu, D., Darbyshire, E., Carpenter, L. J., Chance, R., Andrews, S. J., Hackenberg, S. C., and McFiggans, G.: Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA, Atmos. Chem. Phys., 15, 5599–5609, https://doi.org/10.5194/acp-15-5599-2015, 2015.
Atkinson, H. M., Huang, R.-J., Chance, R., Roscoe, H. K., Hughes, C., Davison, B., Schönhardt, A., Mahajan, A. S., Saiz-Lopez, A., Hoffmann, T., and Liss, P. S.: Iodine emissions from the sea ice of the Weddell Sea, Atmos. Chem. Phys., 12, 11229–11244, https://doi.org/10.5194/acp-12-11229-2012, 2012.
Awtrey, A. D. and Connick, R. E.: The Absorption Spectra of I2, I3, I, IO3, S4O6= and S2O3=. Heat of the Reaction I3  =  I2 + I, J. Am. Chem. Soc., 73, 1842–1843, https://doi.org/10.1021/ja01148a504, 1951.
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Reactive iodine species play a key role in the oxidation capacity of the polar troposphere, although sources and mechanisms are poorly understood. In this paper, the photolysis of frozen iodate salt has been studied, confirming that under near-UV–Vis radiation iodate is photolysed. Incorporating this result into an Antarctic atmospheric model, we have shown that it could increase the atmospheric IO levels and could constitute a pathway for the release of active iodine to the polar atmosphere
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