What
is Volcanic Ash?
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Volcanic
ash consists of tiny jagged pieces of rock and glass. Ash is hard,
abrasive, mildly corrosive, conducts electricity when wet, and does
not dissolve in water. Ash is spread over broad areas by wind.
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What
is it like during an ash fall?
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Falling
ash can turn daylight into complete darkness. Accompanied by rain
and lightning, the gritty ash can lead to power outages, prevent
communications, and disorient people.
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Guidance
for homes, businesses, & communities
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Taking
action before, during, and after an ash fall can prevent or reduce
many of the damaging effects of ash. Removing ash requires disposal
sites and coordination among individuals and households, community
organizations, and businesses.
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References
and Web Links
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Volcanic
ash brochures
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Two ash fall hazards pamplets published by the International
Volcanic Health Hazard Network (IVHHN) are available on the IVHHN
Pamphlets webpage.
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Volcanic
gases and aerosols
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Information
relating to the health hazards of gases and aerosols typically
emitted during volcanic activity are also available from the International
Volcanic Health Hazard Network (IVHHN).See introduction
to volcanic gases and guidelines
based on international urban and industrial pollution studies.
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