@idefix37
Good afternoon! I am trying to understand what CO in PPBV means when applied to the norms in my country. We have:
rural areas - 332 ppm
small towns - 409 ppm
Big cities - 511 ppm.
now in my city 500 ppbv, if believe the map this is a serious excess, вut how to convert PPBV to ppm?
But when converted to ppm, it turns out that it is 0.5 ppm. Where is the error? Please help me to understand

@simonl
@idefix37
Good afternoon! I am trying to understand what PPBV means when applied to the norms in my country. We have:
rural areas - 332 ppm
small towns - 409 ppm
Big cities - 511 ppm.
now in my city 500 ppbv, if you believe the map is a serious excess, вut how to convert PPBV to ppm?
But when converted to ppm, it turns out that it is 0.5 ppm. Where is the error? Please help me to understand