Gazawar dam din Certej a 1971

Rushewar dam na Certej a shekarar 1971 ya kasance ambaliya ne sakamakon gazawar dam din wutsiya a ma'adinan Certej wanda ya yi sanadiyar mutuwar mutane 89. Ya faru a ranar 30 ga Oktoba 1971 a Certeju de Sus commune, gundumar Hunedoara, Romania. 

 Tarihi 
An yi amfani da tafkin wutsiya na Certej tsakanin 1936 zuwa 1971 don riƙe wutsiyar acid na cyanide-laced sakamakon haƙar zinari na Certej. 

 Bala'in 
Da karfe 4:55 na safe, dam din ya karye na tsawon mita 80 (87 yd) kuma daga tafkin wutsiya, ragowar kubik 300,000 (390,000 cu yd) na ragowar ya taso zuwa garin Certej, wanda ya mamaye radius na kusan kilomita 4-5 (2.5–3.1m). Ambaliyar ruwan ta ruguza gaba daya gine-gine guda shida da wani dakin kwanan dalibai da gidaje guda bakwai, wanda ya yi sanadiyar mutuwar mutane 89 tare da jikkata wasu 76. Sakamakon faduwar dam din da aka yi, akasarin wadanda abin ya shafa na barci, lamarin da ya yi sanadiyar mutuwar mutane da dama.

 Sakamakon haka 
Hukumomin Kwaminisanci na Romania sun sanar da mutuwar mutane 48 kawai a cikin manema labarai, don kauce wa ayyana Ranar makoki ta kasa. Wadanda suka tsira an biya su saboda asarar gidajensu, suna karɓar ɗaki ko kayan gini daga jihar don sake gina gidajensu.

An kafa kwamitin gwamnati daga cikin kwararru 16 don gudanar da bincike kan bala'in. Bayan binciken da suka yi, sun gano cewa wutsiyar ta rasa kwanciyar hankali saboda karuwar tsayin da aka ba su. Har ila yau, wani abu na iya kasancewa nau'in abun ciki na kandami, kamar yadda tsakanin 1936 da 1971, an adana kayan daban-daban, suna da halaye daban-daban, wanda ke haifar da kuskure.

Masu gabatar da kara sun binciki mai tsara madatsar ruwan da wasu mutane biyar, amma daga karshe suka yanke shawarar janye dukkan tuhume-tuhumen, saboda ba a iya yin hasashen bala'in cikin sauki.

 Dubi kuma 

 Bala'in muhalli na Ok Tedi - irin wannan fashewar madatsar ruwa a Papua New Guinea a shekarar 1984, har yanzu yana haifar da lalacewar muhalli shekaru da yawa bayan haka
 Bala'in madatsar ruwan Merriespruit a Afirka ta Kudu a 1994
 2000 Baia Mare cyanide zubar, kuma a Romania
 Hadarin tashar Ajka alumina a Hungary a cikin 2010
 Bala'in madatsar ruwan Bento Rodrigues a Brazil a shekarar 2015

 Bayanan da aka ambata