BreezoMeter uses an index called “ICCA (CR)”
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.
ICCA (CR) represents air quality levels according to the following health categories:
Good air quality
0 to 20
Unfavorable air quality for sensitive groups
21 to 40
Unfavorable air quality
41 to 60
Very unfavorable air quality
61 to 80
Hazardous air quality
81 to 100
The chart displays the pollutants that are part of the The following chart displays the pollutants that are part of the ICCA (CR) calculation and the timeframe taken to average each pollutant type.:
Explore the local air quality indexes BreezoMeter uses in various countries.