Know the air quality index to better understand the severity of pollution and related health impacts. The Air Quality Index commonly known as the AQI is an index used for reporting daily air quality levels. Colors indicate how polluted the air is and how to protect your health.
Source: EPA
|
Color |
Air Quality |
Protect Your Health |
|
Green
|
Good
|
No action necessary.
|
|
Yellow
|
Moderate
|
Unusually sensitive people should consider limiting prolonged outdoor exertion.
|
|
Orange
|
Unhealthy for sensitive groups
|
Active children/adults and people with respiratory disease or asthma should limit prolonged outdoor exertion.
|
|
Red
|
Unhealthy
|
Active children/adults and people with respiratory disease or asthma should avoid prolonged outdoor exertion; everyone else, especially children, should limit outdoor exertion.
|
|
Purple
|
Very Unhealthy
|
Active children/adults and people with respiratory disease or asthma should avoid all prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.
|
More information about the air quality index is available from NCTCOG, EPA, AIRNow.gov and others. Sign up to receive Air Pollution Watch and Warning alerts to know when the region's air quality will be unhealthy or worse.