AQI Color Chart

AQI Levels Of Health Concerns

GOOD

Numerical Value

0 to 50

Meaning

Air Quality is Considered satifactory, and air pollution poses little or no risk

AQI Levels Of Health Concerns

MODERATE

Numerical Value

51 to 100

Meaning

Air quality is acceptable, however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution

AQI Levels Of Health Concerns

UNHEALTHY FOR SENSITIVE GROUP

Numerical Value

101 to 150

Meaning

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

AQI Levels Of Health Concerns

UNHEALTHY

Numerical Value

151 to 200

Meaning

Everyone may begin to experience health effects. Members of sensitive groups may experience more serious health effects.

AQI Levels Of Health Concerns

VERY UNHEALTHY

Numerical Value

201 to 300

Meaning

Health Alert: Everyone may experience more serious health effects.

AQI Levels Of Health Concerns

HAZARDOUS

Numerical Value

301 to 500

Meaning

Health warnings of emergency conditions. The entire population is more likely to be affected.