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Does methane have a smell?

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It its natural state, methane is both colourless and odourless. Natural gas and LPG (propane) smells because an odourant - Ethyl Mercaptan - is added to the gas to make it easier to detect a leak. read more

No, it doesn't. Which is a problem because natural gas is mainly methane and you really do want to be able to detect gas leaks easily. That's why they add mercaptans to natural gas, so that people can smell leaks. read more

Best Answer: Methane actually has no smell. It is a colorless, odorless gas. Generally the smell you have smelled of 'poop' or other 'gas' smells is due to an additive such as methanethiol, which is added to gases such as propane and methane in order to alert people when there is a leak. read more

Methane gas can displace oxygen, especially in a confined space, and be deadly. Hydrogen sulfide is also toxic. Fortunately for us, we can generally smell Hydrogen Sulfide (H2S) at very low levels and far below what could be toxic. read more

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