SmogRank / World / United States / Ohio / May 2024
Most polluted cities in Ohio, United States, May 2024
27 cities in Ohio, United States ranked by their average PM2.5 over the 31 days. Worst: Columbus at 8.6 µg/m³, #1,067 of 2,641 cities in the world. Cleanest: Sharonville at 3.9. 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.
- 1Columbus 0%
- 2Middletown 0%
- 3Oregon 0%
- 4Cleveland 0%
- 5Westerville 0%
- 6Norwood 0%
- 6Canton 0%
- 8Cincinnati 0%
- 9Toledo 0%
- 10Lebanon 0%
- 10Springfield 0%
- 10Steubenville 0%
- 13Dayton 0%
- 13Dent 0%
- 13Dublin 0%
- 16Maumee 0%
- 17Warren 0%
- 18Wheelersburg 0%
- 18Akron 0%
- 20Medina 0%
- 21Youngstown 0%
- 22Painesville 0%
- 22Warrensville Heights 0%
- 24Cleveland Heights 0%
- 25New Albany 0%
- 26Lima 0%
- 27Sharonville 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, May 2024, smogrank.com/us/region/ohio/history/2024-05 (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.