Hawaii volcano generates toxic gas plume called laze
https://phys.org/news/2018-05-hawaii-volcano-toxic-gas-plume.html
It's just the latest hazard from a weeks-old eruption that has so far generated earthquakes and featured gushing molten rock, giant ash plumes and sulfur dioxide. The eruption has destroyed more than 40 buildings forced more than 2,000 people to evacuate.
On Monday, lava entered and then stalled on the property of a geothermal plant near one of Kilauea's new volcanic vents. Officials earlier this month removed 50,000 gallons (190,000 liters) of stored flammable gas from the plant to reduce the chance of explosions.