thumb|right|Ntossøen.
Nyossøen er en dyb kratersø i det nordvestlige Cameroun kaldet Dødens Sø, da den er mættet med kuldioxid (CO2), der kommer fra en lomme af magma der ligger under søen. Den 21. august 1986 forårsagede et kuldioxyd-udslip, at 1.700 mennesker og 3.599 husdyr omkom.
thumb|right|Nyossøen 2 uger efter udslippet i 1986 thumb|right|Død ko efter udslippet i 1986
Se også Kivusøen Monounsøen
Referencer
Final step of the 32-year Lake Nyos degassing adventure: Natural CO2 recharge is to be balanced by discharge through the degassing pipes. Journal of African Earth Sciences 2020 One Day In 1986, Thousands Of People And Animals Around Lake Nyos Were Found Dead. IFLScience 2021 "Cameroon scientist denies dam about to collapse" (23 August 2005). Reuters. Cotel A (1999), A trigger mechanism for the Lake Nyos disaster, American Physical Society, Division of Fluid Dynamics Meeting, November 21-23, 1999 Decker, R. and Decker, B. (1997) Volcanoes, 3rd edition, WH Freeman, New York. Musa, Tansa (28 September 2005). "Cameroon dam could collapse in 10 years-UN experts". Reuters. Musa, Tansa (18 August 2005). "Cameroon dam nears collapse, 10,000 lives at risk". Reuters. Sano Y., Kusakabe M., Hirabayashi J. et al. (1990), Helium and carbon fluxes in Lake Nyos, Cameroon: constraint on next gas burst, Earth and Planetary Science Letters, v. 99, p. 303-314 Sano Y., Wakita H., Ohsumi T., Kusakabe M. (1987), Helium isotope evidence for magmatic gases in Lake Nyos, Cameroon, Geophysical Research Letters, v. 14, p. 1039-1041 Beer-Bottle Physics Could Help Explain Deadly Eruptions. Livescience This Small Lake in Africa Once Killed 1,700 People Overnight, and We Still Don't Know Why. ScienceAlert 2017
Kategori:Søer i Cameroun Kategori:Camerouns geografi