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Old 01-25-2013, 05:16 PM
rlitman rlitman is online now
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Join Date: Sep 2009
Location: Long Island
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Originally Posted by tadpole View Post
What do you base this on?

Note that the units are in milligrams per liter, and that the chart is assuming pure oxygen. Atmospheric pressure is 1 bar (at sea level), but the oxygen partial pressure is just 1/5 of that, so the solubility is 1/5th the number at 1 bar.

Assuming you have a 1000 gallon freshwater pond (salt reduces the solubility), at 32F, you could have as much as 0.27 cubic feet of dissolved oxygen. At 68F that number drops to a whopping 0.17 cubic feet dissolved in that entire 1000 gallons.
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