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Biology 105
Biology of Exercise
Spring 2003
| Altitude | Barometric pressure (mmHg) | PO2 in air (mmHg) | PO2 in alveoli (mmHg) | Arterial Hemoglobin O2 saturation (%) | PO2 in alveoli (mmHg) | Arterial Hemoglobin O2 saturation (%) | ||
| air breathing | air breathing | breathing 100% oxygen | breathing 100% oxygen | |||||
| 0 | 760 | 159 | 104 | 97 | 673 | 100 | ||
| 10000 | 523 | 110 | 67 | 90 | 436 | 100 | ||
| 20000 | 349 | 73 | 40 | 73 | 262 | 100 | ||
| 30000 | 226 | 47 | 21 | 30 | 139 | 99 | ||
| 40000 | 141 | 29 | 12 | 15 | 58 | 87 | ||
| 50000 | 87 | 18 | 2 | 2 | 16 | 22 | ||
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