I got some great feedback on this atmosphere already, so I decided to lower the oxygen levels as a result of the feedback.
I am creating an atmosphere for a planet in a science fiction book I am writing and want to make sure that this atmosphere is sustainable for intelligent aliens while also being relatively breathable for humans but they have to resort to using gas masks at first before they acclimate over a long period of time. I also want the gas masks because I know xenon settling into valleys and depressions creates a death zone when there is no wind and want to include that in the book. I know there are a lot of noble gases comprising my atmosphere, is that too unrealistic? The reason I have this is because I want voice to be distorted in an unusual way via the helium and xenon combination. Here is the edited atmosphere in question.
- Atmospheric Pressure at sea level: 0.81 atm
- Atmospheric composition:
- 58.02% nitrogen
- 14.72% oxygen
- 12.79% argon
- 7.41% helium
- 6.18% xenon
- 0.88% other gases (carbon dioxide, water vapor, etc.)
Extra info: Size is similar to earth although has slightly less land mass, one moon orbits planet as well
Goal: I want to make it so that normal humans could acclimate with time but initially it is unsafe and use gas masks. (I fear I may have overdone it with reducing oxygen levels past the point of acclimation)
Thank you for great feedback last time!