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:
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
Good Good
Health Message: None
Air Quality Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
Good
Good
Particles (PM2.5)
Good
Good
Ozone
Moderate
Moderate
Particles (PM2.5)
Good
Good
Forecast Discussion: A frontal boundary will move south to north on Saturday, bringing a chance of rain and thunderstorms all day to southern areas, while keeping central areas dry until the evening hours. Severe storms are possible late in the day. There should be enough cloudiness to keep pollution levels in the low moderate range. On Sunday, the frontal boundary will remain across the area during the day, until a cold front moves through during the afternoon. This means rain and thunderstorms are possible all day again. Look for clouds all day, holding pollution levels down. A dry day is forecasted for Memorial Day. Skies should remain mostly sunny, temperatures will be 75-80, dew points in the mid 50’s, and relative humidity values dropping into the low 40’s. Winds will be out of the west at around 10 mph. On Tuesday, a disturbance could affect the area from the northwest. This will increase clouds and the chances for rain.

Current Conditions
Air Quality Index (AQI)
observed at 14:00 EDT
41
Good
Health Message: None
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 41 Good
Particles (PM10) 13 Good
Particles (PM2.5) 30 Good

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