Was October 23, 2026 an ozone action day in Columbus?
NO
No — there's no ozone action day in Columbus today; air is Moderate with ozone running low.
Why
- Air quality index 57 (Moderate), driven by PM2.5
- Ozone at 21 µg/m³, well under alert levels
- MORPC ozone alerts only trigger at AQI above 101