Lethal Surface Ozone Concentrations Are Possible on Habitable Zone Exoplanets
G. J. Cooke,
D. R. Marsh,
C. Walsh
et al.
Abstract:Ozone (O3) is important for the survival of life on Earth because it shields the surface from ionizing ultraviolet radiation. However, the existence of O3 in Earth’s atmosphere is not always beneficial. Resulting from anthropogenic activity, O3 exists as a biologically harmful pollutant at the surface when it forms in the presence of sunlight and other pollutants. As a strong oxidizer, O3 can be lethal to several different organisms; thus, when assessing the potential habitability of an exoplanet, a key part i… Show more
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