Emission rates of sulfur dioxide, trace gases and metals from Mount Erebus, Antarctica

SO2 emission rates have been measured annually since 1983 at Mount Erebus, Antarctica by correlation spectrometer (COSPEC V). Following a 4 month period of sustained strombolian activity in late 1984, SO2 emissions declined from 230 Mg/day in 1983 to 25 Mg/day and then slowly increased from 16 Mg/da...

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Bibliographic Details
Published inGeophysical research letters Vol. 17; no. 12; pp. 2125 - 2128
Main Authors Kyle, Philip R., Meeker, Kimberley, Finnegan, David
Format Journal Article
LanguageEnglish
Published Blackwell Publishing Ltd 01.11.1990
Subjects
Activation analysis
Antarctica
Emission
Halogens
Magnesium
Plumes
Sulfur dioxide
Trace gases
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Summary:SO2 emission rates have been measured annually since 1983 at Mount Erebus, Antarctica by correlation spectrometer (COSPEC V). Following a 4 month period of sustained strombolian activity in late 1984, SO2 emissions declined from 230 Mg/day in 1983 to 25 Mg/day and then slowly increased from 16 Mg/day in 1985 to 51 Mg/day in 1987. Nine sets of filter packs containing particle and 7LiOH treated filters were collected in the plume in 1986 and analyzed by neutron activation. Using the COSPEC data and measured element/S ratios on the filters, emission rates have been determined for trace gases and metals. We infer HCl and HF emissions in 1983 to be about 1200 and 500 Mg/day, respectively. Mt. Erebus has therefore been an important source of halogens to the Antarctic atmosphere and could be responsible for excess Cl found in central Antarctica snow.
Bibliography:ark:/67375/WNG-8TV0JXTN-Z
ArticleID:90GL02293
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ISSN:0094-8276
1944-8007
DOI:10.1029/GL017i012p02125