(ppm)-the number of parts of a given pollutant in a million parts of air

listen to the pronunciation of (ppm)-the number of parts of a given pollutant in a million parts of air
Englisch - Englisch

Definition von (ppm)-the number of parts of a given pollutant in a million parts of air im Englisch Englisch wörterbuch

(PPM)-the number of parts of a given pollutant in a million parts of air
parts per million