Earth's Atmosphere, General Oxygen Requirements and Tolerances of Humans

[taselby]

(this is a repost)

For the record, Earth's general atmospheric composition (up to about 25km above sea level) is:
78% Nitrogen
21% Oxygen
1% Argon
0-7% Water Vapor (this varies greatly)
and assorted trace gases including (but not limited to):
ozone, carbon dioxide, neon, helium, methane, and hydrogen.

Comments

[taselby]

It's an approximation that presumes someone is breathing air with that oxygen content. If a character has a big lungful of oxyegn-rich air, then this would take effect once he/she ran out of breath and started to breath the 4-6% stuff.

ETA:Here is a link to the original article about confined space accidents and safety from the UC Davis Office of Environmental Health and Safety. */edit*

(Thank you. *grin* I have songs for all occasions!)

[falzalot]

I wonder how much VOG affects all this? Having just come back from a week in Hawaii breathing the stuff, and having massive asthma issues...

[gryphonrhi]

Man, I love your brain! {{{hugs}}}

[ssybil70]

You totally should.