SmogRank / World / United States / Ohio / December 2024
Most polluted cities in Ohio, United States, December 2024
26 cities in Ohio, United States ranked by their average PM2.5 over the 31 days. Worst: Oregon at 11.3 µg/m³, #729 of 2,573 cities in the world. Cleanest: Sharonville at 5.5. 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.
- 1Oregon 0%
- 2Maumee 0%
- 3Canton 0%
- 3Cleveland 0%
- 5Norwood 0%
- 5Steubenville 0%
- 7Middletown 0%
- 7Dublin 0%
- 7Warren 0%
- 10Akron 0%
- 10Westerville 0%
- 12Medina 0%
- 12New Albany 0%
- 14Columbus 0%
- 15Warrensville Heights 0%
- 16Youngstown 0%
- 17Lima 0%
- 18Dayton 0%
- 18Dent 0%
- 18Wheelersburg 0%
- 21Painesville 0%
- 22Cincinnati 0%
- 22Springfield 0%
- 22Cleveland Heights 0%
- 25Lebanon 0%
- 26Sharonville 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
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SmogRank, most polluted cities in Ohio, United States, PM2.5, December 2024, smogrank.com/us/region/ohio/history/2024-12 (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.