Widespread detection of chlorine oxyacids in the Arctic atmosphere.

ABSTRACT: Chlorine radicals are strong atmospheric oxidants known to play an important role in the depletion of surface ozone and the degradation of methane in the Arctic troposphere. Initial oxidation processes of chlorine produce chlorine oxides, and it has been speculated that the final oxidation steps lead to the formation of chloric (HClO₃) and perchloric (HClO₄) acids, although these two species have not been detected in the atmosphere. Here, we present atmospheric observations of gas-phase HClO₃ and HClO₄. Significant levels of HClO₃ were observed during springtime at Greenland (Villum Research Station), Ny-Ålesund research station and over the central Arctic Ocean, on-board research vessel Polarstern during the Multidisciplinary drifting

SUBMITTER: Tham YJ 

PROVIDER: S-EPMC10063661 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature