Fine particles in the Soufriere eruption plume

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.216.4550.1118· OSTI ID:5609014

Woods, D C; Chuan, R L

The size distributions of fine particles measured at tropospheric altitudes in the periphery of the eruption plume formed during the 17 April 1979 eruption of Soufriere Volcano and in the low-level effluents on 15 May 1979 were found to be bimodal, having peak concentrations at geometric mean diameters of 1.1 and 0.23 micrometers. Scanning electron microscopy and energy-dispersive x-ray analysis of the samplers revealed an abundance of aluminum and silicon and traces of sodium, magnesium, chlorine, potassium, calcium, and iron in the large-particle mode. The submicrometer-sized particles were covered with liquid containing sulfur, assumed to be in the form of liquid sulfuric acid.

• OSTI ID: 5609014
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 216; ISSN SCIEA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
ALKALI METALS
ALKALINE EARTH METALS
ALUMINIUM
CALCIUM
CHLORINE
EARTH ATMOSPHERE
ECOLOGICAL CONCENTRATION
ELECTRON MICROSCOPY
ELEMENTS
ENVIRONMENTAL TRANSPORT
ERUPTION
HALOGENS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON
MAGNESIUM
MASS TRANSFER
METALS
MICROSCOPY
NONMETALS
PARTICLE SIZE
PLUMES
POLLUTION
POTASSIUM
SCANNING ELECTRON MICROSCOPY
SEMIMETALS
SILICON
SIZE
SODIUM
SULFUR
SULFURIC ACID
TRANSITION ELEMENTS
TROPOSPHERE
VOLCANOES