Home
Sites Listing
Downtown Public Library
Building Indoor AQI
Nearby Outdoor AQI
Air Quality Index (AQI) Explanations
Daily AQI Color
Levels of Concern
Values of Index
Green
Good
0-50
Yellow
Moderate
51-100
Orange
Unhealthy for Sensitive Groups
101-150
Red
Unhealthy
151-200
Purple
Very Unhealthy
201-300
Maroon
Hazardous
301 and higher