Louisville
 
Data and Forecasts courtesy of:
 

 - https://files.airnowtech.org/airnow/today/cur_aqi_ky_tn.jpg Map Map Map Map Map Map Map Map Map Map Map Map Map Map
 
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AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20171123_ky_tn.jpg Map Map Map Map Map Map Map Map Map Map Map Map Map Map
 
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AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: 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.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
 
Local Air Quality Resources
Action Day Program | Louisville Air Pollution Control District | Today's AQI | Today's Air Quality Data
 
State Air Quality Resources
American Lung Association (ALA) of Kentucky
Kentucky Air Quality Index (AQI) Program
Kentucky Department of Environmental Protection
Kentucky Division for Air Quality
Kentucky Division for Air Quality - Contacts
Louisville Metro Air Pollution Control District
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 20:00 EST
58
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 22 Good
Particles (PM2.5) 58 Moderate
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
Moderate
Moderate
Particles (PM2.5)
Moderate
Moderate
Forecast Discussion: Very cold today and moderating tomorrow. High pressure retreats to the east for Friday and the weekend. Saturday a strong system will travel through Ontario dragging another dry cold front through.  The coldest air will plunge southward into the mid-Atlantic states on Sunday and Monday. Here we will remain mostly sunny and seasonably mild.
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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