Symptoms Of Oxygen Deficient Atmosphere

Oxygen Deficient Atmosphere (<19.5%)

Oxygen Concentration (% Volume)	Symptoms of acute exposure
15-19	May impair coordination. Decreased ability to perform tasks
12-15	Impaired coordination, perception, and judgment
10-12	Increased breathing rate, poor coordination and judgment, lips slightly blue
8-10	Mental failure, fainting, unconsciousness, ashen face, blueness of lips, nausea, upset stomach and vomiting
6-8	8 minute exposure: may be fatal in 50-100%; 6 minute exposure: may be fatal in 25-50%; 4-5 minutes exposure: Recovery with treatment
4-6	Coma in 40-seconds, followed by convulsions, breathing failure, death

Source: Compressed Natural Gas Safety Bulletin, SB-2, 1992.

Reduce risks, Increase Uptime, Reduce costs

I did my first litigation support work in 2000.

Since then I have been obsessed with preventing future failures. Some of these failures can have catastrophic consequences.

Having tried various techniques, learning / unlearning “latest” paradigms, it is clear we have a long way to go!

But instead of thoughtful work, what I mostly see are platitudes and oversimplifications. No keen practical insights!

I want to change that.