Carbonyl Sulfide and Carbon Disulfide from the Eruptions of Mount St. Helens

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Science  05 Feb 1982:
Vol. 215, Issue 4533, pp. 665-667
DOI: 10.1126/science.215.4533.665


Ash from the massive 18 May 1980 eruption of Mount St. Helens readily gave off large amounts of carbonyl sulfide and carbon disulfide gases at room temperature. These findings suggest that the sulfur that enhances the Junge sulfate layer in the stratosphere after volcanic eruptions could be carried directly to the upper atmosphere as carbonyl sulfide and carbon disulfide adsorbed on ash particles from major volcanic eruptions.