Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - NOAA global CO2 average had passed the critical 400 ppm mark

mort · 09-20-2016, 08:24 AM

Based on physiology, the average adult with normal blood pressure would not be able to rid their body of CO2 if the CO2 concentration in the air rises to 6% (60,000 ppm). The analysis of accidents shows that a 10% atmospheric concentration is fatal after a few minutes. 30% is fatal almost instantly. [see this]
Old tests show that air seems stuffy at about 1% CO2, and respiration rate increases. At 3% there is definite impairment in cognition, panting, sweating, increased blood pressure, headache, tinnitus and other symptoms. [chart here]
In recent tests of workers in "green" buildings decision making tests scores were lower when building levels exceeded about 1000 ppm [here and here]
Maybe some people are impaired at 400 ppm.
-mort

09-20-2016, 08:24 AM	#7 (permalink)
mort EcoModding Lurcher Join Date: Dec 2010 Location: Los Angeles Posts: 333 Thanks: 150 Thanked 109 Times in 80 Posts	Based on physiology, the average adult with normal blood pressure would not be able to rid their body of CO2 if the CO2 concentration in the air rises to 6% (60,000 ppm). The analysis of accidents shows that a 10% atmospheric concentration is fatal after a few minutes. 30% is fatal almost instantly. [see this] Old tests show that air seems stuffy at about 1% CO2, and respiration rate increases. At 3% there is definite impairment in cognition, panting, sweating, increased blood pressure, headache, tinnitus and other symptoms. [chart here] In recent tests of workers in "green" buildings decision making tests scores were lower when building levels exceeded about 1000 ppm [here and here] Maybe some people are impaired at 400 ppm. -mort