| Index Values |
Air Quality Description
(Color Description) |
Health Cautionary Statement |
| 0-50 |
Good (Green) |
No limitations |
| 51 - 100 |
Moderate (Light Yellow) |
Extremely sensitive children and adults, especially with
respiratory diseases such as asthma, should consider limiting
outdoor exertion. |
| 101 - 150 |
Unhealthy for
Sensitive Groups (Orange) |
Sensitive children, adults and especially those with respiratory
diseases such as asthma, should limit prolonged outdoor exertion. |
| 151 - 200 |
Unhealthy (Red) |
Sensitive children and adults should avoid outdoor exertion
and everyone else should limit prolonged outdoor exertion
during peak ozone periods. |
| 201 - 300 |
Very Unhealthy
(Purple) |
Sensitive children and adults should avoid outdoor activities
and remain indoors. Everyone else should avoid outdoor exertion. |
| Over 300 |
Hazardous (Deep
Purple) |
Everyone, especially children, should avoid outdoor activities
and remain indoors. |
