APCD and the U.S. EPA's AirNow provide live maps of air quality in the metropolitan Louisville area. Each link opens in a new window.

Ozone (available March through October)

• Current ozone (8-hour averages)
• Today's ozone animation (allow time to load)
• Yesterday's ozone animation (allow time to load)
• Yesterday's peak ozone (8-hour averages)
• Yesterday's peak ozone 1-hour averages
• Map archives

Fine Particulate Matter (PM_2.5)

• Current PM_2.5 (24-hour averages)
• Today's PM_2.5 animation (allow time to load)
• Yesterday's PM_2.5 animation (allow time to load)
• Yesterday's peak PM_2.5
• Map archives

Current National Air Quality Maps

• AirNow.gov