The Halemaʻumaʻu Crater expels about 300 tons of sulfur dioxide daily both within the crater and along the rim. Those with breathing or heart problems should avoid this area.
By John Fischer, About.com
The Halemaʻumaʻu Crater expels about 300 tons of sulfur dioxide daily both within the crater and along the rim. Those with breathing or heart problems should avoid this area.
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