BreezoMeter uses an index called “IQCA (EC)”
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.
IQCA (EC) represents air quality levels according to the following health categories:
Category
AQI
Desirable air quality
0 to 50
Acceptable air quality
51 to 100
Precautionary level
101 to 200
Alert level
201 to 300
Alarm level
301 to 400
Emergency level
401 to 500
Pollutant Type
Period
pm2.5
24h avg.
pm10
24h avg.
o3
8h avg.
so2
24h avg.
no2
1h avg.
co
8h avg.
The chart displays the pollutants that are part of the The following chart displays the pollutants that are part of the IQCA (EC) calculation and the timeframe taken to average each pollutant type. :
Explore the local air quality indexes BreezoMeter uses in various countries.