1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What pressures can a human survive in?

  1. May 19, 2010 #1
    I know that earth has a surface pressure of 101.325 kilopascals. So right now we are all under this pressure, but what types of pressures will we start to die at? high and low pressures in pascals please. Thanks.
     
  2. jcsd
  3. May 19, 2010 #2

    mgb_phys

    User Avatar
    Science Advisor
    Homework Helper

    Record for diving is about 500m, or 50 atmospheres = 5MPa
    The limit isn't the pressure as such, the pressure inside is the same as outside - it's the chemical effects of gases at very high pressures, oxygen for example is toxic above about 3atm.

    Oxygen is about 21% of air, and you can live with about 16% oxygen, so you would be able to survive a pure oxygen environment at 0.16atm or around 16KPa.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook