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Iodine oxide in the marine boundary layer

Abstract

A striking example of the influence of halogen chemistry on tropospheric ozone levels is the episodic destruction of boundary-layer ozone during the Arctic sunrise by reactive halogen species1, 2. We detected iodine oxide in the boundary layer at Mace Head, Ireland (53°20′ N, 9°54′ W) during May 1997, which indicates that iodine chemistry is occurring in the troposphere.

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Figure 1: Figure 1 Spectra.
Figure 2: Figure 2 IO and ozone measurements at Mace Head.

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Alicke, B., Hebestreit, K., Stutz, J. et al. Iodine oxide in the marine boundary layer. Nature 397, 572–573 (1999). https://doi.org/10.1038/17508

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