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SUMMARY:Elucidating Marine Chlorine Production and its Role in Methane Oxid
 ation
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20250924T160000
UID:2026-05-07-04-46-46@natsci.colostate.edu
DTSTAMP:20260507T044646
Description:About the seminar:\n\nLarge uncertainties associated with the g
 lobal budget of the greenhouse gas methane significantly inhibit the abili
 ty of researchers and policymakers to effectively reduce emissions. The ga
 ps in the global budget of methane can be filled by gathering more observa
 tions around poorly constrained removal pathways. Oxidation via the chlori
 ne radical is one of those pathways that is relevant to methane destructio
 n\, specifically\, in the marine troposphere. The importance of regional c
 hlorine chemistry was first alluded to when discrepancies in the isotopic 
 ratios of carbon monoxide\, a product of the reaction of methane and chlor
 ine\, were discovered in Barbados in the late 1990’s. Current research i
 nto seasonally dependent pathways has led to the elucidation of the minera
 l dust-sea spray aerosol (MDSA) mechanism. In this seminar\, supporting li
 terature for the MDSA mechanism will be explored. Preliminary gas-phase da
 ta collected in Cape San Juan\, Puerto Rico via an iodide chemical ionizat
 ion mass spectrometer will be investigated to augment modern observations 
 around this mechanism. 4:00 pm
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