AMBIENT AIR STANDARD


Meaning of AMBIENT AIR STANDARD in English

the highest concentration of a specific air pollutant at a particular outdoor location, in a specified unit of time, that is not considered hazardous to humans: The ambient air standard for gas X is 3 parts per million per hour.

[ 1970-75 ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .