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How long would a person need to be exposed to methane gas before they become unconscious?

In: Death and Dying [Edit categories]

Answer:

That's all down to the concentration. At low concentration, there's no effect at all. At a high concentration, a few minutes.

First answer by Dabac. Last edit by Dabac. Contributor trust: 483 [recommend contributor ]. Question popularity: 1 [recommend question].

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