1000pm in Shanghai classrooms, windows open: "The air exchange rate was 2.9-29.4 ac/h (mean 9.1), because of window opening. Mean CO2 exceeded 1000 ppm in 45% of the classrooms."
1000pm is a non-event. Life survived multiple extinction-level asteroid impacts. We've adapted to much worse in the past.
At the worst, people will have indoor/car CO2-removers, just like you cannot really survive without an AC everywhere in Middle East (or Arizona) today. Maybe we'll just have to get some more indoor plants.
You said "some cities", so I presumed you meant outdoors. Of course in a crowded room it can reach 1000 ppm (or much higher) without the proper ventilation. This finding has nothing to do with the city of Shanghai.
And yes, the "window open" comment I made was for a room with 1 person in it like a bedroom. If it's crowded then obviously more effective ventilation will be needed.
> 1000pm is a non-event
Well the study this thread is based on is directly contradicting that. Do you know of any studies that shows that 1000 ppm has no negative impact on higher order cognition?
> Maybe we'll just have to get some more indoor plants.
Indoor plants aren't effective at reducing indoor CO2.
1000pm in Shanghai classrooms, windows open: "The air exchange rate was 2.9-29.4 ac/h (mean 9.1), because of window opening. Mean CO2 exceeded 1000 ppm in 45% of the classrooms."
1000pm is a non-event. Life survived multiple extinction-level asteroid impacts. We've adapted to much worse in the past.
At the worst, people will have indoor/car CO2-removers, just like you cannot really survive without an AC everywhere in Middle East (or Arizona) today. Maybe we'll just have to get some more indoor plants.