# What are the ranges of CO2 levels for inner cities and should CO2 be added to the air quality index?

I have a indoor $$\small\mathsf{CO_2}$$ monitor and putting it on my balcony it indicates values of 1400-2200 ppm for different days ? Is this even possible and what are the ranges of $$\small\mathsf{CO_2}$$ levels for the outside air of larger inner cities ?

Also should $$\small\mathsf{CO_2}$$ be added to the list of gasses measured by the air quality index ? I know it doesn't accurately measure the source that generates the $$\small\mathsf{CO_2}$$, but at least people should have a general idea of the levels of $$\small\mathsf{CO_2}$$ in different areas so they can better pick a cleaner place to live in.

• it makes no sense to include this in the air quality index,had it been 10times higher then it had been a good idea to include it. – trond hansen Nov 6 '19 at 7:32
• A chart here says typical city center ~500 ppm. – Keith McClary Nov 7 '19 at 4:03