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20 Οκτ 2021 · Methane gas has no color or odor, which can make exposure particularly dangerous. If you spend long periods exposed to methane gas it can result in serious health impacts and in some cases could even result in death. Methane gas also poses a danger to the environment as a greenhouse gas.
1 Ιαν 2021 · Methane is a relatively less toxic, but highly inflammable and explosive gas. The toxicity with respect to methane is correlative with its attributes such as flammability, explosiveness, and low ignition point. The exposure to methane may show symptoms such as asphyxia, wheezing, shortness of breath, coughing, or burning in the mouth.
It is obvious that an exposure limit that presents an explosion hazard cannot be recommended, even if it is well below a concentration that would produce toxicity; thus, exposure limits should not exceed 5% by volume in air.
What is methane and why is it a safety concern? Methane (a gas composed of carbon and hydrogen) is produced two ways: Through biologic decomposition of organic matter at shallow depths. Swamps, landfills, and even shallow bedrock are some settings where this occurs.
At very high levels methane can displace (move) the amount of oxygen in the air and can cause asphyxiation (suffocation) resulting in symptoms like headaches, dizziness, weakness, nausea, vomiting, increased breathing rate, loss of coordination, loss of consciousness, and possibly death.
Methane mitigation is an economic and environmental win-win. As natural gas is composed mostly of methane, emissions of methane from the oil and gas value chain represent a wasted product that translates into roughly $34 billion of lost revenue per year, at average 2017 delivered prices. (UNEP)
20 Αυγ 2021 · Human-caused methane emissions could be reduced by as much as 45 per cent within the decade. This would avert nearly 0.3°C of global warming by 2045, helping to limit global temperature rise to 1.5˚C and putting the planet on track to achieve the Paris Agreement targets.
