Search results
Results from the WOW.Com Content Network
Water vapour is consistently the most abundant volcanic gas, normally comprising more than 60% of total emissions. Carbon dioxide typically accounts for 10 to 40% of emissions. [4] Volcanoes located at convergent plate boundaries emit more water vapor and chlorine than volcanoes at hot spots or divergent plate boundaries.
The eruption triggered the sudden release of about 100,000–300,000 tons of carbon dioxide (CO 2). [ 2 ] [ 3 ] The gas cloud initially rose at nearly 100 kilometres per hour (62 mph; 28 m/s) and then, being heavier than air, descended onto nearby villages, suffocating people and livestock within 25 kilometres (16 mi) of the lake.
Lake Nyos, the site of a limnic eruption in 1986. A limnic eruption, also known as a lake overturn, is a very rare type of natural hazard in which dissolved carbon dioxide (CO 2) suddenly erupts from deep lake waters, forming a gas cloud capable of asphyxiating wildlife, livestock, and humans.
The USGS said the primary concern is high levels of volcanic gas – primarily water vapor, carbon dioxide and sulfur dioxide – that could have "far-reaching effects down-wind."
Volcanic ash is typically a mixture of crushed-up solids – including rocks, minerals and glass – and gases, such as water vapor, carbon dioxide and sulfur dioxide, according to NASA.
Nyos is a deep lake high on the flank of an inactive volcano in the Oku volcanic plain along the Cameroon line of volcanic activity. A volcanic dam impounds the lake waters. A pocket of magma lies beneath the lake and leaks carbon dioxide (CO 2) into the water, changing it into carbonic acid.
The scale of the volcanic eruption will determine the significance of the impact on climate and other chemical processes, but a change will be measured even in the most local of environments. When volcanoes erupt, they eject carbon dioxide (CO 2 ), water, hydrogen, sulfur dioxide (SO 2 ), hydrogen chloride , hydrogen fluoride , and many other ...
Hawaii Volcanoes National Park warned visitors about dangerous volcanic gas released by eruptions. A combination of sulfur and carbon dioxide, known as vog, can be carried by the wind and impact ...