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The 0.04% CO2 figure is from 420 parts per million, I'd imagine. Anecdotally, I noticed that overly high (1000+) PPM numbers will make me drowsy and lethargic.
by Scene_Cast2 5y ago
The 0.04% CO2 figure is from 420 parts per million, I'd imagine.
Anecdotally, I noticed that overly high (1000+) PPM numbers will make me drowsy and lethargic. IIRC, the mandated legal max for office buildings is 800; but it's easy to go way past that in a well-insulated home in the winter. There are sensors you can buy to monitor this figure so that you can open windows or move around when necessary.
Also, this figure was probably lower during when the stories took place.
- exhilaration 5y agoAlso, this figure was probably lower during when the stories took place. Why? I would assume the opposite, if there were earthquakes in "17 AD, 60 AD, and again in the 17th and 14th Centuries" as the article states, I would guess that more gases were released when the area had higher seismic activity.
- ben_w 5y agoThe background level of CO2 (not that of the caves themselves) was about 280 ppm in the Greek era: https://commons.wikimedia.org/wiki/File:CO2_40k.png https://commons.wikimedia.org/wiki/File:CO2_40k.png