Lake Nyos, which contains a vast lake in Cameroon, West Africa. This lake reaches a depth of 157 m to 208 meters deep. There are many people who live around the lake Nyos valley. However, in 1986, there are oddities in the locality. Approximately 1700 people die suddenly and simultaneously. Even more strangely, all the people who died were killed in position while performing their daily work. One was killed while pumping water, cooking, and some are killed while drinking a glass of water. Some survivors of the incident tell you what happened on the day these people died.
He said, the night before the incident, the air suddenly felt warm and smelled like rotten eggs. Society is not too worried about it. And suddenly the next day, when many of the bodies were busy with their daily activities. No one knows for sure what caused the strange death. But experts find, if the color of the water of Lake Nyos changed from clear to bright orange color.
To find the answer, the experts then examined Craten Lake in Oregon. This lake is the largest lake in seven world. The extent of 50 square kilometers with a depth of 594 meters. So be explained if the Empire State hold this lake, will sink. Craten lake holds about 19 trillion liters of water. Around 7700 years ago, Mount Mazame the place erupted and threw the top of the mountain.
Crater Lake is then formed Craten. However, it turns volcanic activity Mazame still affect the lake. Because the lake was still there an ex who still hot magma. The experts found that the temperature of the water in the bottom of the lake a few degrees warmer, the salt content also ten times more concentrated and contains a lot of CO2. CO2 is then seeping from cracks the crust and into the crater which has now become a lake. However, the presence of water has prevented the increase of CO2 into the air. Even if there is little that escapes, still carried by wind gusts can be lost. So it is not too dangerous.
This process also influences the change of seasons. In winter, the velocity of the water will be pushed down because of warmer temperatures below. By contrast, in the summer, the speed of the water will rise to the top. The cycle then create the appearance of a layer of water of different densities. The lowest layer of water is more concentrated than the above. At the bottom layer of water flowing from the bottom of CO2 saved the earth. CO2 can not rise higher because of differences in water density in the layer above it. So that collect and accumulate for decades and became very much in the bottom water layer.
This phenomenon was later found also in smaller Horseshoe Lake from Lake Craten. The trees that grow around the lake dries up and eventually die. After investigation, it turns CO2 level in the lake reached 100 tons / day and seep into the ground. This is what makes trees around them die. The experts then conduct experiments to dig a little dirt on the lake and trying to start a fire. However, due to the highly concentrated levels of CO2, the fire was extinguished immediately brought closer to the ground. It turns out that the accumulation of CO2 that has been very much on the lake eventually overflow and cause the lake to be very dangerous. However, the level of CO2 in Horseshoe Lake is not too dangerous for humans, because the level of danger limit is 1.75 million tons. And this will only happen in the event of volcanic eruptions.
These findings then help the experts to conclude what happened at Lake Nyos. The night before the show, there is a cliff at the edge of the lake, collapsed and went into the water. It is estimated that this cliff ruins have shaken the water layer. So the most basic layer filled with CO2 to rupture and drain large amounts of CO2 to the surface of the lake.
The next morning the CO2 stream is then entered a residential area. And because CO2 is colorless and odorless, people are not aware of his arrival. That is what causes many people were killed while performing daily activities. CO2 is like a killer lurking quietly. Few people are aware of the dangers inherent invisible bottom of the lake that looks very beautiful on the surface. Without them knowing it, they have inhaled CO2 derived from the most basic layer of the lake, which has been accumulated over decades. And a lot of people who died because of it. Thank you for reading this article.
Written and posted by Bambang Sunarno. sunarnobambang86@gmai.com
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name: Bambang Sunarno.
http://www.faradice.blogspot.com/2014/11/lake-nyos-in-cameroon-deadliest-lake.html
DatePublished: 26 November 2014 at 21:00
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