カメルーン・ニオス湖 1986年8月ガス噴出災害の概要

書誌事項

タイトル別名
  • Lethal Gas Bursts from Lake Nyos, Cameroon, August 1986
  • カメルーン ニオスコ 1986ネン 8ガツ ガス フンシュツ サイガイ ノ ガ

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抄録

In the night of August 21, 1986, a large amount of CO2 gas was emitted from Lake Nyos, Located in the western Cameroon. The outburst started about 2030 hours and lasted about 4 hours. 1700 people and more than 3000 cattle died as relatively heavy masses of gas swept through valleys. The highest level of the lethal gas was more than 100 m above the lake and the main stream of the gas reached as far as 16 km downstream. The water of the lake was highly distubed and the vegitation was stripped off by the splashing water more than 20 m (80m in maximum) above the lake level. Most scientists agree that the main constituent of the lethal gas was CO2 and the presence of significant amount of other toxic gases such asH2S and SO2 seems unlikely as a cause of “burns” or skin lesions.

収録刊行物

  • 火山.第2集

    火山.第2集 32 (1), 17-24, 1987

    特定非営利活動法人 日本火山学会

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