Sample Air Quality Monitor

Air Quality Index Levels of Health
Concern
Numerical Value Meaning
Good 0 to 50 Air quality is considered satisfactory, and air pollution
poses little or no risk
Moderate 51 to 100 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.
Unhealthy for Sensitive Groups 101 to 150 Members of sensitive groups may experience health
effects. The general public is not likely to be affected.
Unhealthy 151 to 200 Everyone may begin to experience
health effects; members of sensitive groups may experience more serious health effects.
Very Unhealthy 201 to 300 Health warnings of emergency
conditions. The entire population is more likely to be affected.
Hazardous 301 to 500 Health alert: everyone may
experience more serious health effects.