SmogRank / World / United States / Ohio / June 2026
Most polluted cities in Ohio, United States, June 2026
28 cities in Ohio, United States ranked by their average PM2.5 over the 30 days. Worst: Lima at 11.8 µg/m³, #487 of 2,466 cities in the world. Cleanest: New Albany at 3.3. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Lima 0%
- 2Middletown 0%
- 3Norwood 0%
- 4Wheelersburg 0%
- 5Steubenville 0%
- 6Westerville 0%
- 7Cleveland 0%
- 8Maumee 0%
- 8Oregon 0%
- 10Cincinnati 0%
- 11Canton 0%
- 12Dayton 0%
- 12Springfield 0%
- 14Warren 0%
- 15Toledo 0%
- 16Columbus 0%
- 17Dent 0%
- 17Lebanon 0%
- 19Sharonville 0%
- 19Youngstown 0%
- 21Akron 0%
- 21Medina 0%
- 23Cleveland Heights 0%
- 24Dublin 0%
- 24Warrensville Heights 0%
- 26Painesville 0%
- 26Shaker Heights 0%
- 28New Albany 0%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
All cities in the world, June 2026 · All cities in United States, June 2026 · Ohio now
Use this board
SmogRank, most polluted cities in Ohio, United States, PM2.5, June 2026, smogrank.com/us/region/ohio/history/2026-06 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.