Tafkin Monoun
Tafkin Monoun wani tabki ne da ke Lardin Yammaci, Kamaru, wanda yake a yankin Oku Volcanic. A ranar 15 ga Agusta, 1984, wani ɓarnar ɓarkewa ta auku a tafkin, wanda ya haifar da sakin adadin carbon dioxide mai yawa (CO2) wanda ya kashe mutane 37. Da farko, mutuwar ba ta kasance ta bayyana ba, kuma ana zargin musabbabin kamar ta'addanci. Furtherarin bincike da irin wannan taron shekaru biyu daga baya a Tafkin Nyos ya haifar da bayanin da aka yarda da shi a halin yanzu.

Bala'i 

Mutane da yawa sun ba da rahoton jin wata babbar kara a ranar 15 ga Agusta, 1984 da misalin ƙarfe 22:30. An bayar da rahoton cewa wani gajimare mai dauke da iskar gas daga wani rami da ke gabashin tafkin. Mutuwar da aka samu na mazauna a wani yanki mai ƙanƙantar da hankali ana tsammanin ya faru ne tsakanin 03:00 zuwa wayewar gari. An ce wadanda abin ya shafa suna da konewar fata, wanda rahotanni daga baya suka bayyana a matsayin "lalacewar fata" kamar canza launi. Waɗanda suka tsira sun ba da rahoton cewa farin, kamar hayaƙi kamar hayaƙi yana da ƙamshi mai ɗaci da acidic. An shimfida ciyayi a gabashin tafkin, wataƙila tsunami ne.

Kodayake Tafkin Monoun yana kusa da tsakiyar filin tsaunin da ya hada da akalla ramuka 34 na baya-bayan nan, binciken da ya biyo baya ya gano cewa lamarin ba ya haifar da fashewa ko fitowar iskar gas daga cikin tafkin ba. Maimakon haka, watsi da iskar carbon dioxide a cikin ɓarkewar mahaifa yana da laifi. Ba a yi cikakken bayani game da ƙanshin gajimare da lalacewar fata ga waɗanda aka cutar ba. Wasu ra'ayoyin suna danganta matsalolin fata ga haɗuwa da abubuwan da suka gabata da abubuwan da ke faruwa bayan mutuwa kamar livor mortis, kodayake babu cikakkiyar yarjejeniya.

Daga cikin wadanda abin ya shafa har da wasu daga cikin mahaya a cikin babbar mota dauke da mutane goma sha biyu. Injin motar ta daina aiki yayin da yunwar iskar oxygen ta dauke ta, kuma mutanen da ke cikin motar suka fito suka mutu. Mutane biyu da ke zaune a kan babbar motar sun tsira, saboda matsayinsu ya ba su damar numfashi - carbon dioxide ya fi iska (oxygen da nitrogen) nauyi wanda ya sa ta kasance kusa da ƙasa.

Shekaru biyu bayan haka, a ranar 21 ga Agusta 1986, makamancin wannan har ma da mafi muni ya faru a Tafkin Nyos, kusan kilomita 100 (mi mi 62) NNW, ya kashe kusan mutane 1,746 da dabbobi sama da 3,000. Tare da Tafkin Nyos da Tafkin Kivu, Tafkin Monoun ɗayan tabkuna ne guda uku a duniya waɗanda aka san suna da yawan iskar gas da ke narkar da shi a ƙasa da ƙasa kuma waɗanda ke da yanayin da ya dace da fashewar jini.

Degassing 
A cikin 2003, an saka bututun iska a cikin tafkin, a kokarin hana bala'in sake afkuwa. Da farko ana buƙatar fanfo don ɗebo ruwa daga ƙasa, amma yayin da iskar carbon dioxide ta fara fitowa daga mafita sai ta haifar da ruwa a cikin ruwa a cikin bututu, wanda ya ba da damar kashe fanfin.

Koyaya, wani bincike a watan Satumbar 2005 da George Kling da wasu masu bincike a Jami'ar Michigan suka gano cewa ba a cire gas daga cikin tafkin da sauri don tabbatar da cewa bala'in ba zai sake faruwa ba. Kling ya bada shawarar saukar da bututun da ke ciki da kuma ƙarin sabo domin sakin ƙarin carbon dioxide.

Manazarta

Hanyoyin haɗin waje 
 The Lake Nyos and Monoun Degassing Project
 Killer lakes in Cameroon may strike again
 Volcanic Lakes and Gas Releases – Reports from the investigation of the disaster
 BBC News 27 Sep 2005: Action needed on deadly lakes
 Mechanics of the switching on of the trigger mechanism of limnological catastrophes – Latvian research by Nataliya Anatolievna Solodovnik and Anatoliy Borisovich Solodovnik