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Oxygen level (pO2) in ambient air and in selected tissues.
| Tissue | pO2 in mmHg (References) |
|---|---|
| Ambient (inspired) air at sea level | 160 (7) |
| Alveolar blood | 104 (7) |
| General tissue oxygenation | 40–50 (7, 33) |
| Thymus | 10 (34) |
| Spleen | 16 (34) |
| Retina | 2–25 (35) |
| Brain | 0.4–8 (36) |
| Tumours | 1–10 (7) |
| White adipose tissue-lean mice | 47.9 (37) |
| White adipose tissue-obese mice | 15.2 (37) |
