Convert concentration values from ppb to µg/m3.
Usage
ppb2ugm3(ppb, temp = 293, press = 1013, mw)
Arguments
- ppb
Numeric with concentrations in ppb.
- temp
Temperature in K (default = 293 K).
- press
Pressure in hPa (default = 1013 hPa).
- mw
Molecular weight.
Value
Numeric with concentration values in \(\mu g/m^3\)
Details
The function converts the concentration of a gaseous pollutant from ppb to
\(\mu g/m^3\) according to the following formula:
$$
\mu g / m^3 = ppb \cdot \frac{MW}{MV}
$$
where \(MW\) is the molecular weight and \(MV\) is the molecular volume.
Molecular weight:
Examples
# NO2
ppb2ugm3(ppb = 100, temp = 293, press = 1013, mw = 46.0055)
#> [1] 191.3822
