guideline value (in air pollution)
[ISO 16814:20, 3.17]:concentration of a pollutant in the air, below which the risk for occurrence of adverse health effects is negligibly lowNOTE It is linked to a time-averaged value.
[ISO 16814:20, 3.17]:concentration of a pollutant in the air, below which the risk for occurrence of adverse health effects is negligibly lowNOTE It is linked to a time-averaged value.