Hypoxia (environmental) | Wikipedia audio article
Channel: wikipedia tts
Date: 07/05/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Hypoxia_(environmental)


00:00:37 1 Atmospheric hypoxia
00:01:37 2 Aquatic hypoxia
00:03:38 2.1 Causes of hypoxia
00:06:14 2.1.1 Phytoplankton breakdown
00:06:45 2.1.1.1 Breakdown of lignin
00:10:34 2.1.1.2 Environmental factors
00:14:05 2.2 Solutions
00:16:48 3 See also



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SUMMARY
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Hypoxia refers to low oxygen conditions. Normally, 20.9% of the gas in the atmosphere is oxygen. The partial pressure of oxygen in the atmosphere is 20.9% of the total barometric pressure. In water however, oxygen levels are much lower, approximately 1%, and fluctuate locally depending on the presence of photosynthetic organisms and relative distance to the surface (if there is more oxygen in the air, it will diffuse across the partial pressure gradient).