vog
n.— «The island of Hawaii does have a monitoring system and a Vog index, the researchers point out, but it is measured only along the Kona Coast, not in Kau. This “volcano-smog” index—Vog is a locally coined term—also is based on aerosol visibility, not SO2.» —“Long-spewing Hawaiian Volcano May Be Health Risk” by Corvallis, Ore. ScienceDaily Mar. 16, 2005. (source: Double-Tongued Dictionary)
Further reading
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