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The international team of researchers, thanks in part to their collaboration with the Italian research station Dirigibile Italia \u2013 managed by CNR-ISP \u2013 analysed snow and aerosol samples collected at Ny-\u00c5lesund, in the Svalbard archipelago, during the winter and spring of 2022. The research has demonstrated the existence of a specific, previously unknown process that takes place in the snowpack and leads to the formation of bromate under natural conditions. \u201cAs solar radiation increases during the polar spring, light-induced chemical reactions are triggered. Bromide present in the snow \u2013 which in this environment is the main chemical form of bromine \u2013 can oxidise to form bromate, a much more stable compound that can accumulate both in the snowpack and in the surrounding environment,\u201d explains Andrea Spolaor, a researcher at CNR-ISP and co-author of the study.<\/p>\n The research made use of analytical techniques that are more sensitive than those available in the past. Furthermore, by employing specific protocols for the identification of oxidised bromine species, it was possible to detect bromate even at low concentrations, overcoming the limitations of previous studies which had failed to detect its presence. Furthermore, through quantum mechanical calculations, the chemical mechanism leading to the formation of bromate in snow has been elucidated.<\/p>\n \u201cBy combining advanced experiments with sophisticated theoretical models, we have been able to clarify the dynamics of the elementary chemical processes at work in a highly complex medium such as snow,\u201d emphasises David Cappelletti, a professor at the University of Perugia and co-author of the study. Although it has no direct impact on current climate change, this discovery is significant.<\/p>\n Rome, 21 April 2026<\/p>\n Institute of Polar Sciences of the National Research Council in Venice, Ca\u2019 Foscari University of Venice, University of Perugia<\/p>\n <\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" We would like to thank the CNR and its Press Office for the following article. Press release dated 21 April 2026 Research carried out by the CNR-ISP in collaboration with Ca\u2019 Foscari University of Venice, the University of Perugia and other international research institutes has detected bromate, a bromine-based chemical compound, in the snowpack of […]<\/p>\n","protected":false},"author":1,"featured_media":23027,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[395],"tags":[],"class_list":["post-23653","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cnr-en"],"yoast_head":"\n![\"Fronte](\"https:\/\/www.kronostories.it\/wp-content\/uploads\/2026\/05\/Immagine-02.jpg\")