|AQI ||Air Quality ||Health Implications |
|0 – 50 ||Good ||Air quality is considered satisfactory, and air pollution poses little or no risk |
|51 -100 ||Moderate ||Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. |
|101-150 ||Unhealthy for Sensitive Groups ||Members of sensitive groups may experience health effects. The general public is not likely to be affected. |
|151-200 ||Unhealthy ||Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects |
|201-300 ||Very Unhealthy ||Health warnings of emergency conditions. The entire population is more likely to be affected. |
|300+ ||Hazardous ||Health alert: everyone may experience more serious health effects |
The pollution indices and color codes available above follow the EPA graduation, as defined by AirNow and explained in wikipedia.