Home >Community >What is the minimum air pressure the human body can tolerate if oxygen supply is not an issue?
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Kashaf Umar
DeekshaFollow
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John CollinsFollow
You've got at least one number wrong. The "Death zone" at Mt Everest is considered to start at about 8000 meters, and the pressure there is about 0.75 atm. See More
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Jamie EFollow
Just to clarify, I didn't mean that the "Death zone" altitude is the answer to the question, just that your altitude and pressure numbers don't match. Also, I couldn't find those numbers in the linked article.More
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Josh-D. DavisFollow
engineeringtoolbox.com/air-altitude-pressure-d_462.htmlMore
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Jeff GoodmanFollow
@jarlemag In the article Death zone pressure was in milibars. I converted it to atm.More
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Graham WolfFollow
Sorry, my mistake. I mistook feet and meters in the table. There's still one mistake though: The lowest tolerable pressure (inhabited for two years) and 475 millibar figure is at the height of 5950 m. 5100 m is the height of the highest permanent settlement.More
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Craig 75Follow
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Francis F. ChenFollow
For reference the natural atmospheric pressure on Mars is around 6 millibars.More
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Charles DanleyFollow
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Jeffrey DenenbergFollow
Add some references to your claim.More
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The minimum air pressure the human body can tolerate without considering oxygen supply is a multifaceted topic that involves understanding human physiology, altitude effects, and atmospheric pressure variations. The information provided in the discussion you shared seems to revolve around discrepancies in altitude, pressure measurements, and their correlation with human survivability.
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Death Zone on Mt. Everest: The "Death Zone" on Mount Everest typically begins around 8,000 meters above sea level, where the air pressure drops significantly, around 0.75 atmospheres (atm).
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Altitude and Pressure Relationships: There are corrections needed regarding altitude and pressure figures. For example, the lowest tolerable pressure for human habitation for an extended period was noted at approximately 5,950 meters, not 5,100 meters.
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Mars Atmospheric Pressure: It's worth noting the natural atmospheric pressure on Mars, which is significantly lower than that of Earth, measuring around 6 millibars.
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Conversion and Accuracy: There were discussions about conversions between units, like millibars to atmospheres, which indicates the importance of precision and accurate measurement when discussing these thresholds.
The discussion highlights the complexities of defining the minimum tolerable air pressure for the human body without considering oxygen supply. It involves considerations of physiological adaptation, the body's response to hypoxia (low oxygen), and how it copes with reduced atmospheric pressure at varying altitudes.
Understanding these concepts involves grasping human physiological limits, altitude-related effects on atmospheric pressure, and the correlation between pressure measurements and human survival without oxygen-related constraints.
These discussions demonstrate the nuances in determining specific thresholds due to factors like adaptation, individual variability, and the limits of human resilience to extreme environmental conditions.
