Whereas the total halogens and sulfur concentrations were obtained byĪlkaline trap sampling with subsequent ion chromatography (IC) and inductively coupled plasma mass spectrometry (ICP-MS) measurements. The sum of the reactive species of each halogen wasĭetermined by gas diffusion denuder sampling followed by gas chromatography–mass spectrometry (GC-MS) analysis, Two field campaigns were conducted: one in JulyĢ016 and one in September 2016. Observations of the oxidation of bromine, chlorine, and iodine during theįirst 11 min following emission, examining the plume from Santiago crater of the
Which is entrained by ambient air that is mixed into the plume. The activation reaction mechanisms in the plume consume ozone (O 3), (HCl, HBr, and HI) into reactive species such as BrO, Br 2, BrCl, ClO, OClO, and Rapid reactions convert the initially emitted hydrogen halides Volcanic emissions are a source of halogens in theĪtmosphere. 10 Institute of Geosciences, Johannes Gutenberg University Mainz, Mainz, GermanyĬorrespondence: Thorsten Hoffmann Hide author detailsĬorrespondence: Thorsten Hoffmann Received: – Discussion started: – Revised: – Accepted: – Published:.9 Laboratorio de Química de la Atmósfera, Universidad Nacional, Heredia, Costa Rica.8 Department of Earth and Planetary Sciences, McGill University,.
1 Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University, Mainz, Germany.
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