Ozone
- Good (0 - 50) Air quality is considered satisfactory, and air pollution poses little or no risk.
- Moderate (51 - 100) ...
- Unhealthy for Sensitive Groups (101 - 150) ...
- Unhealthy (151 - 200) ...
- Very Unhealthy (201 - 300) ...
- Hazardous (301 - 500)