Gaseous Air Pollutant

Absolute Temperature: °C
Atmospheric Pressure : hPa


molar mass =    g/mol

volume mixing ratio ppbv
volume mixing ratio ppmv
concentration (mass) µg/m3
concentration (mass) mg/m3
concentration (mol.) µmol/m3
concentration (molec.) molec./cm3
mass mixing ratio ppbm
partial pressure nbar


All results have been rounded to significant digits.

This is conversion from volume mixing ratio to molecular concentration and partial pressure which depend on the molar mass. The standard atmospheric pressure has been given: 1,013.25 hPa. The air pollutant can be chosen from the drop-down field and its molar mass will be displaced. If the pollutant is not in the drop down field, you can pick the *** and input the value of your pollutant molar mass to the next field. The T=absolute temperature (K) can be change.

How to Use:
First choose the pollutant in the drop down field. Type the value to convert into the field, behind which you find the unit. Click on any empty space in the window or on the “calculate” button. The converted result will be shown in the other fields. You can use the “reset” button to reset the process.

Please send us feedback or an email if you have suggestions on how to improve this site for your use or if you would like to see more conversions calculator included.

There is no warranty from Units Calculator for the conversion. Please check your data and result before use, for Units Calculator is not responsible for damage of any kind caused by wrong results produced.

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