Mercury emissions from Mount St Helens during September 1980

Details Mercury emissions from Mount St Helens during September 1980 Mercury emissions from Mount St Helens during September 1980

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.293..555v&link_type=abstract

Nature, vol. 293, Oct. 15, 1981, p. 555, 556. U.S. Geological Survey

Mathematics

Logic

12

Forecasting, Mercury Vapor, Outgassing, Volcanology, Air Pollution, Carbon Dioxide, Plumes, Pollution Monitoring, Sulfur Dioxides, Wind Velocity

Scientific paper

It is noted that mercury emissions from active volcanoes are of interest for monitoring and forecasting volcanic activity and for estimating the volcanogenic contribution of Hg to the atmosphere. Collections of Hg from air samples during the first two weeks of September 1980, when Mt. St. Helens was in a noneruptive phase, are analyzed. Mercury concentrations in the plume are found to vary between 750 and 1800 ng/cu m. From these analyses, it is calculated that the daily Hg output from the Mt. St. Helens system ranged from 200 to 1700 kg. Rough estimates of the yearly Hg release from volcanic sources throughout the world suggest that volcanoes may be important contributors of Hg to the atmosphere.

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