BreezoMeter uses an index called “IQar (PT)”
We take the average of each pollutant type according to local government definitions.
An official conversion table is used to convert average pollutant concentrations to AQI for each pollutant.
The final AQI is determined by taking the worst AQI among all pollutants. The worst pollutant being the dominant pollutant.
IQar (PT) represents air quality levels according to the following health categories:
Very good air quality
Good air quality
Moderate air quality
Low air quality
Bad air quality
The chart displays the pollutants that are part of the The following chart displays the pollutants that are part of the IQar (PT) calculation and the timeframe taken to average each pollutant type. :
Explore the local air quality indexes BreezoMeter uses in various countries.