What is the air quality in Columbus OH?

Columbus OH, United States of America has an annual US AQI of 55 (Reasonable) and average PM2.5 of 11.9 µg/m³, ranking #1349 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Columbus OH?

April is typically the cleanest month (AQI 48) and July the most polluted (AQI 61).

Where does Columbus OH's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2026, satellite 1998, 2005; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

Columbus OH, United States of America — Air Quality & Clean City Guide 2026

Columbus OH Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1349	Columbus OH, United States of America	North America	AQI 55	PM2.5 11.9 µg/m³