Volcanic gas plume creates heavy vog conditions during slack tradew...

Volcanic air pollution, commonly called volcanic smog or vog, at the summit of Kīlauea Volcano created by the gas plume rising from Halema‘uma‘u Crater during slack tradewinds. High vog levels result in regionally hazy sky conditions that degrade air clarity and reduce visibility for everyone. Exposure to vog is known to exacerbate existing respiratory problems and can produce symptoms such as headaches and eye irritation is some otherwise healthy individuals.