Carbon Dioxide Scrubbers: Difference between revisions
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A steady supply of oxygen alone is insufficient to keep astronauts breathing. While the intake of oxygen is essential for respiration, the by-product of this respiration is the exhalation of | |||
A steady supply of oxygen alone is insufficient to keep astronauts breathing. While the intake of oxygen is essential for respiration, the by-product of this respiration is the exhalation of approximately one kilogram of carbon-dioxide per day.<ref>James, J. T., & Macatangay, A. (2009). ''Carbon Dioxide – Our Common “Enemy.”'' 8.</ref> The concentration of this gas in Earth's atmosphere is roughly 0.04%, but in the close confines endured by astronauts, accumulations of CO<sub>2</sub> can quickly reach toxic levels.<ref name=":0">Freudenrich, C. (2011). How is carbon dioxide eliminated aboard a spacecraft? | HowStuffWorks. Retrieved August 15, 2019, from HowStuffWorks website: <nowiki>https://science.howstuffworks.com/carbon-dioxide-eliminated-aboard-spacecraft.htm</nowiki></ref> | |||
{| class="wikitable" | |||
|+Symptoms Experienced According to CO<sub>2</sub> Level<ref name=":0" /> | |||
!CO<sub>2</sub> Concentration | |||
!Symptoms | |||
|- | |||
|1% | |||
|Drowsiness | |||
|- | |||
|3% | |||
|Impaired hearing, increased heart rate and blood pressure, stupor | |||
|- | |||
|5% | |||
|Shortness of breath, headache, dizziness, confusion | |||
|- | |||
|8% | |||
|Unconsciousness, muscle tremors, sweating | |||
|- | |||
|>8% | |||
|Death | |||
|} | |||
* | |||
Revision as of 03:54, 16 August 2019
[This is an article in progress, and is currently being written]
A steady supply of oxygen alone is insufficient to keep astronauts breathing. While the intake of oxygen is essential for respiration, the by-product of this respiration is the exhalation of approximately one kilogram of carbon-dioxide per day.[1] The concentration of this gas in Earth's atmosphere is roughly 0.04%, but in the close confines endured by astronauts, accumulations of CO2 can quickly reach toxic levels.[2]
| CO2 Concentration | Symptoms |
|---|---|
| 1% | Drowsiness |
| 3% | Impaired hearing, increased heart rate and blood pressure, stupor |
| 5% | Shortness of breath, headache, dizziness, confusion |
| 8% | Unconsciousness, muscle tremors, sweating |
| >8% | Death |
- ↑ James, J. T., & Macatangay, A. (2009). Carbon Dioxide – Our Common “Enemy.” 8.
- ↑ 2.0 2.1 Freudenrich, C. (2011). How is carbon dioxide eliminated aboard a spacecraft? | HowStuffWorks. Retrieved August 15, 2019, from HowStuffWorks website: https://science.howstuffworks.com/carbon-dioxide-eliminated-aboard-spacecraft.htm