Louisville
 
Data and Forecasts courtesy of:
 

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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 12:00 EDT
60
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 58 Moderate
Particles (PM10) 50 Good
Particles (PM2.5) 60 Moderate
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
Unhealthy for Sensitive Groups Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
ACTION DAY
Air Quality Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Ozone
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
Particles (PM2.5)
Moderate
Moderate
Ozone
Moderate
Moderate
Particles (PM2.5)
Moderate
Moderate
Forecast Discussion: An upper level system will move through early on Saturday, which will kick off a round of rain and a few thunderstorms. After this system moves through, expect humid conditions to return. This will allow temperatures to reach near 90 from Sunday to Tuesday. With dew points in the upper 60 to near 70, the heat index could reach the upper 90’s to near 100 in some places. Monday looks to be the driest day, so expect highest ozone values on that day. The humid conditions should limit ozone production, but we should also see an increase in the PM2.5 concentrations.
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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