5 ms·

Oxygen is about 21% of the atmosphere in most places, so 80% CO2 doesn't seem very high (most of the atmosphere is CO2, but there's also other stuff in it albei

Oxygen is about 21% of the atmosphere in most places, so 80% CO2 doesn't seem very high (most of the atmosphere is CO2, but there's also other stuff in it albeit at much lower concentrations).

firebaze 5y ago
You probably wanted to say, most of the atmosphere is Nitrogen (~78%). 80% CO² would be quite interesting, effect-wise: https://pubmed.ncbi.nlm.nih.gov/31759856/ https://pubmed.ncbi.nlm.nih.gov/31759856/
- deleted 5y ago
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davidhowlett 5y ago
The atmosphere is about 78% nitrogen. Carbon dioxide forms about 0.04%
tharkun__ 5y ago
That doesn't mean that it isn't bad. From the article itself: Normal air contains just 0.04% CO2 but Pfanz was shocked to discover that the concentration around the shrine reached a staggering 80%. "Just a few minutes exposure to 10% carbon dioxide can kill you," he said, "so the levels here are really deadly."
hrasyid 5y ago
> 80% CO2 doesn't seem very high Are you a visitor from Venus? :) https://en.wikipedia.org/wiki/Atmosphere_of_Venus https://en.wikipedia.org/wiki/Atmosphere_of_Venus Joke aside, as other posters say the CO2 concentration is more like 0.04% and even an increase for that is considered a contributing factor in global warming.
IntrepidWorm 5y ago
Its not just that a large concentration of CO2 dilutes oxygen- in high enough concentrations it can be toxic. 10% of athmospheric volume as CO2 is lethal in minutes- concebtrations over 30% are lethal in seconds, which is why in cases of CO2 poisoning at high concentrations victims will not appear to have been distressed- they quite simply did not have time to react. There are approximately 89 cases of CO2 poisoning in the US every year, about 2/3 of whom are themselves emergency rescue personell.
ajhurliman 5y ago
Update: I'm dumb and was thinking about nitrogen, thanks for the correction folks

Oxygen is about 21% of the atmosphere in most places, so 80% CO2 doesn't seem very high (most of the atmosphere is CO2, but there's also other stuff in it albeit at much lower concentrations).

firebaze 5y ago

You probably wanted to say, most of the atmosphere is Nitrogen (~78%). 80% CO² would be quite interesting, effect-wise: https://pubmed.ncbi.nlm.nih.gov/31759856/ https://pubmed.ncbi.nlm.nih.gov/31759856/

deleted 5y ago
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davidhowlett 5y ago

The atmosphere is about 78% nitrogen. Carbon dioxide forms about 0.04%

tharkun__ 5y ago

That doesn't mean that it isn't bad. From the article itself: Normal air contains just 0.04% CO2 but Pfanz was shocked to discover that the concentration around the shrine reached a staggering 80%. "Just a few minutes exposure to 10% carbon dioxide can kill you," he said, "so the levels here are really deadly."

hrasyid 5y ago

> 80% CO2 doesn't seem very high Are you a visitor from Venus? :) https://en.wikipedia.org/wiki/Atmosphere_of_Venus https://en.wikipedia.org/wiki/Atmosphere_of_Venus Joke aside, as other posters say the CO2 concentration is more like 0.04% and even an increase for that is considered a contributing factor in global warming.

IntrepidWorm 5y ago

Its not just that a large concentration of CO2 dilutes oxygen- in high enough concentrations it can be toxic. 10% of athmospheric volume as CO2 is lethal in minutes- concebtrations over 30% are lethal in seconds, which is why in cases of CO2 poisoning at high concentrations victims will not appear to have been distressed- they quite simply did not have time to react. There are approximately 89 cases of CO2 poisoning in the US every year, about 2/3 of whom are themselves emergency rescue personell.

ajhurliman 5y ago

Update: I'm dumb and was thinking about nitrogen, thanks for the correction folks