Methane is basically non-toxic to people, but when the concentration is too high, the oxygen content in the air is obviously reduced, which makes people suffocate. When the methane in the air reaches 25%-30%, it can cause headache, dizziness, fatigue, inattention, rapid breathing and heartbeat, and ataxia. If you don't stay away in time, you may suffocate. Skin contact with liquefied methane can cause frostbite.

Methane poisoning: acute poisoning, methane toxicity is very low, and the "methane poisoning" caused by exposure to high concentration methane is actually due to hypoxia and suffocation caused by the relative reduction of oxygen content in the air. Allow gas to safely diffuse into the atmosphere or be used as fuel. There are simple asphyxia and high concentration hypoxia asphyxia leading to poisoning. When the air reaches 25 ~ 30%, dizziness, accelerated breathing and dyskinesia occur.

Extended data

According to a new study by Stanford University, converting greenhouse gas methane into carbon dioxide (CO2) can be an effective supplementary means to achieve this goal. Researchers published a paper in the journal Nature Sustainable Development on the 20th, pointing out that transforming one greenhouse gas into another seems counterintuitive, but it is effective and profitable.

Methane is a more active greenhouse gas than carbon dioxide, and its impact on climate warming is many times higher than that of carbon dioxide. Human activities are the main reason for the increase of atmospheric methane concentration. In 20 18, the concentration of methane in the atmosphere reached 2.5 times of the pre-industrial level, of which about 60% was produced by human activities, and these emissions were difficult to eliminate.

People's Network-The conversion of methane into carbon dioxide may help to control climate change.

Baidu encyclopedia-methane