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Solubility O2 in H2O
How much oxygen (O2) is soluble in water (H2O)?
With fine bubble aeration 9 mg O2 per liter water can be dissolved, with a water temperature of 20 degrees Celsius. The water temperature determines how much O2 can be solved as shown in the following table:
Higher O2 mg / l than in the table?
Outside air roughly consists of 20% oxygen and 78% nitrogen and 2% other gases. If one would use pure oxygen and take out the other gases, then the saturation is about 45 mg O2 per liter water.