Researchers report that summer iodine concentrations in ice cores from the French Alps tripled between 1950 and 1995, consistent with increased iodine deposition as predicted by chemical transport model simulations; the increased iodine deposition resulted from increased oceanic iodine emissions driven by enhanced ozone levels from anthropogenic nitrogen oxide emissions.
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Article #18-09867: "Alpine ice evidence of a three-fold increase in atmospheric iodine deposition since 1950 in Europe due to increasing oceanic emissions," by Michel Legrand et al.
MEDIA CONTACT: Michel Legrand, Université Grenoble Alpes, FRANCE; tel: +33-4-76-86-11-81; e-mail: < michel.legrand@univ-grenoble-alpes.fr >
Proceedings of the National Academy of Sciences