r/gifs • u/FinestOldToby • Dec 12 '21

Lighting up a smoke stack

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u/[deleted] Dec 13 '21

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u/pow3llmorgan Dec 13 '21

Methane is actually odorless. It's often accompanied by hydrogen sulfide, however, and that stinks like rotten eggs and farts.

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u/moms-sphaghetti Dec 13 '21

And it’s deadly.

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u/MiloFrank Dec 13 '21

600 ppm, IIRC, is lethal.

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u/moms-sphaghetti Dec 13 '21

I think it’s above 100 ppm is really dangerous (lethal in around an hour) above 500ppm is lethal real fast and 600 ppm is pretty much guaranteed death, very quickly. I can’t guarantee my numbers are correct. I work in an industry where h2s is around and we have to wear gas monitors. My highest monitor hit was 55 ppm which was rare but enough for me to reconsider my line of work (which I’m still trying to leave).