Pocket of carbon dioxide–rich air that can be lethal
In geology, a mazuku (Swahili for "evil wind") is a pocket of carbon dioxide-rich air that can be lethal to any human or animal life inside.[1] Mazuku is created when carbon dioxide accumulates in pockets low to the ground.[2] CO2 is denser than air, which causes it to flow downhill, hugging the ground like a low fog, and is also undetectable by human olfactory or visual senses in most conditions.
Mazukus can be related to volcanic activity or a natural disaster known as a limnic eruption. In the first case, noxious gases are released from the Earth's crust into the atmosphere, whereas in the second case, the gases originate deep in a lake and boil rapidly to the surface. Because of their nature as sporadic and subtle events, few mazukus have been recorded, but there is a growing understanding of them based on historical and fossil evidence.
^Walsh, Declan (January 2004). "Goma Lives in Fear of Volcano's Next Eruption; 2004". The Sunday Independent. Plate Tectonics. Archived from the original on 26 March 2011. Retrieved 23 April 2011.
^"Volcano Under the City". NOVA. 1 November 2005. PBS.
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