Articles | Volume 19, issue 7
Atmos. Chem. Phys., 19, 4917–4931, 2019
https://doi.org/10.5194/acp-19-4917-2019
Atmos. Chem. Phys., 19, 4917–4931, 2019
https://doi.org/10.5194/acp-19-4917-2019

Research article 11 Apr 2019

Research article | 11 Apr 2019

pH-dependent production of molecular chlorine, bromine, and iodine from frozen saline surfaces

John W. Halfacre et al.

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Cited articles

Abbatt, J., Oldridge, N., Symington, A., Chukalovskiy, V., McWhinney, R. D., Sjostedt, S., and Cox, R. A.: Release of Gas-Phase Halogens by Photolytic Generation of OH in Frozen Halide-Nitrate Solutions: An Active Halogen Formation Mechanism, J. Phys. Chem. A, 114, 6527–6533, https://doi.org/10.1021/jp102072t, 2010. 
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In this study, we found that a chemical called hydroxyl radical can help create chlorine, bromine, and iodine (i.e., halogens) from acidic frozen imitation seawater. Even more halogens are created if we also add ozone. This result helps our understanding of how halogens are released from the frozen Arctic ice and snow into the atmosphere, where they alter the atmosphere's oxidation ability.
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