thumb|Dense vog as seen from Hilo Bay, Hawaii Vog is a form of air pollution that results when sulfur dioxide and other gases and particles emitted by an erupting volcano react with oxygen and moisture in the presence of sunlight. The word is a portmanteau of the words volcanic and smog, the latter itself a portmanteau of smoke and fog. The term is in common use in the Hawaiian Islands, where the Kīlauea volcano, on the Island of Hawaii (the "Big Island"), erupted continuously between 1983 and 2018. Based on June 2008 measurements, Kīlauea emits 2,000–4,000 tons of sulfur dioxide (SO2) every d
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Article
8 sectionsContents
- Description
- Vog in Hawaii
- Comparing vog and smog
- Health hazards
- Recent events
- See also
- References
- External links
thumb|Dense vog as seen from Hilo Bay, Hawaii Vog is a form of air pollution that results when sulfur dioxide and other gases and particles emitted by an erupting volcano react with oxygen and moisture in the presence of sunlight. The word is a portmanteau of the words volcanic and smog, the latter itself a portmanteau of smoke and fog. The term is in common use in the Hawaiian Islands, where the Kīlauea volcano, on the Island of Hawaii (the "Big Island"), erupted continuously between 1983 and 2018. Based on June 2008 measurements, Kīlauea emits 2,000–4,000 tons of sulfur dioxide (SO2) every day.
==Description== Vog is created when volcanic gases (primarily oxides of sulfur) react with sunlight, oxygen and moisture. The result includes sulfuric acid and other sulfates. Vog is made up of a mixture of gases and aerosols which makes it hard to study and potentially more dangerous than either on their own.