Air Quality Index (AQI) Calculator

Calculate the Air Quality Index based on pollutant concentrations.

PM2.5 (μg/m³):

Enter the PM2.5 concentration in μg/m³.

PM10 (μg/m³):

Enter the PM10 concentration in μg/m³.

Ozone (O3) (ppm):

Enter the Ozone concentration in ppm.

Carbon Monoxide (CO) (ppm):

Enter the Carbon Monoxide concentration in ppm.

Sulfur Dioxide (SO2) (ppm):

Enter the Sulfur Dioxide concentration in ppm.

Nitrogen Dioxide (NO2) (ppm):

Enter the Nitrogen Dioxide concentration in ppm.

Air Quality Index (AQI):

The calculated AQI will appear here.

Main Pollutant:

The main pollutant contributing to the AQI will appear here.

AQI	Air Pollution Level	Health Implications
0-50	Good	Little or no risk
51-100	Moderate	Acceptable quality
101-150	Unhealthy for Sensitive Groups	Generable publics not likely affected
151-200	Unhealthy	Everyone may begin to experience health effects
201-300	Very Unhealthy	Health warnings of emergency conditions
301-500	Hazardous	Health alert: everyone may experience more serious health effects