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A Code Orange Air Quality Action Day for ozone is in effect for Mecklenburg and Union Counties today until 8pm (more details)
Map Boundaries:
Daily Max. 8 hr. Ozone:
Design Value Data:
Updated through: 4/17/26      User's Guide
Disclaimer: 2026 ozone data is unofficial and is provided courtesy of AirNow-Tech.
For help, please email us!
Station Details:
Click on a station for more details!