Filter measurements of stratospheric sulfate and chloride in the eruption plume of Mount St. Helens

Journal Article · Wed Dec 31 23:00:00 EST 1980 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.211.4484.826· OSTI ID:5608957

Gandrud, B W; Lazrus, A L

Five flights of the U-2 aircraft with a filter sampler aboard were flown in the Mount St. Helens debris from 19 May to 17 June 1980. Sulfate concentrations as large as 216 times the expected background were observed. The enhancements of acid chloride vapor were considerably smaller, suggesting an insignificant increase of background values of hydrogen chloride once the plume is well mixed throughout the lower stratosphere.

• OSTI ID: 5608957
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 211; ISSN SCIEA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580202 -- Geophysics-- Volcanology-- (1980-1989)
AIR FILTERS
AIR POLLUTION
CASCADE MOUNTAINS
CHLORIDES
CHLORINE COMPOUNDS
EARTH ATMOSPHERE
ECOLOGICAL CONCENTRATION
EQUIPMENT
FEDERAL REGION X
FILTERS
HALIDES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MOUNTAINS
MT ST HELENS
NORTH AMERICA
OXYGEN COMPOUNDS
PLUMES
POLLUTION
POLLUTION CONTROL EQUIPMENT
STRATOSPHERE
SULFATES
SULFUR COMPOUNDS
USA
WASHINGTON