Ozone level markers display the level at locations that are common landmarks for local residents. Searching for an address will add a marker at that location. |
Air Quality Index Values
(ozone parts per billion) |
Levels of Health Concern. |
| 136+ |
HAZARDOUS |
Health alert: everyone may experience more serious health effects. |
| 116-135 |
VERY UNHEALTHY |
Health warnings of emergency conditions. |
| 96-115 |
UNHEALTHY |
Everyone may begin to experience health effects. |
| 77-95 |
WARNING |
General public not likely to be affected; People sensitive to air pollution may experience health effects. |
| 61-76 |
MODERATE |
Air quality is acceptable; Moderate health concern for people unusually sensitive to air pollution. |
| 0-60 |
GOOD |
Air quality is considered satisfactory, air pollution poses little or no risk. If you are seeing an all green box, this means there are low ozone levels. To view the value in a certain area, click on the map. Ozone level markers give a more precise value for a specific location. |
