US Air Quality Index Maps
NOTE: Today's Maps are Unavailable Between Midnight and 4 AM EDT.
NOTE: Today's Maps are Unavailable Between Midnight and 4 AM EDT.
Kentucky-Tennessee Area Air Quality Maps
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 Action Day
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Yesterday's AQI Map Animation 
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Yesterday's Last AQI Map
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AQI Forecast
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Data and maps courtesy of US EPA AirNow
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Air Quality Index
Levels of Health Concern |
Numerical
Value |
Meaning
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|---|---|---|
| Good | 0-50 | Air quality is considered satisfactory, and air pollution poses little or no risk. |
| Moderate | 51-100 | 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. |
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Unhealthy for Sensitive Groups |
101-150 | Members of sensitive groups may experience health effects. The general public is not likely to be affected. |
| Unhealthy | 151-200 | Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects. |
| Very Unhealthy | 201-300 | Health alert: everyone may experience more serious health effects. |
| Hazardous | > 300 |
Health warnings of emergency conditions. The entire population is more
likely to be affected.
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