Hypoxia and Medicine

How do oxygen and carbon dioxide change with depth?

What processes affect the concentration of these gases at different depths and what happens in areas with anoxia?

Public Comments

1. Solubility of gases in fluid liquid e.g water changes with pressure . As water depth increases, the pressure increases and thus concentration of different gases vary in accordance with thier solubilty. In atmosphere , however, the heavier gases have the tendency to settle down according to their molecular density ( the heaviest one at the bottom), if the atmosphere is not disturbed for long time. In anoxia regions , co2, being the heavier has greater concentration at ground level than oxygen , which is lighter and thus anoxia results.