Fashewar Shenhai-Hujja
Lokacin da matakan methane suka wuce madaidaicin fashewa ko faɗuwa ƙasa da ƙananan iyaka, ƙonewar yana da laushi saboda rashin ko dai methane ko oxygen. A cikin kewayon fashewa, duk da haka, rabon methane-to-oxygen shine mafi kyau ga konewa, haddasa mummunar gobara.
Idan a wannan lokacin, Sakamakon sinadarai yana faruwa a cikin ƙayyadaddun yanki kuma yana buƙatar gagarumin sakin zafi, iskar gas da ke haifarwa suna faɗaɗa da sauri, yana ƙarewa a fashewa.