SmogRank / World / United States / Ohio / June 2023

Most polluted cities in Ohio, United States, June 2023

21 cities in Ohio, United States ranked by their average PM2.5 over the 30 days. Worst: Canton at 32.8 µg/m³, #62 of 1,549 cities in the world. Cleanest: Dent at 17.3. 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.

← Cleveland 27% 20%0
Every city in Ohio, United States ranked for June 2023, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Cleveland
    27%
  2. 2Dublin
    27%
  3. 3Middletown
    27%
  4. 4Canton
    23%
  5. 5Akron
    23%
  6. 6Youngstown
    21%
  7. 7Warrensville Heights
    21%
  8. 8Medina
    20%
  9. 9Norwood
    20%
  10. 10Cincinnati
    20%
  11. 11Warren
    17%
  12. 12Dayton
    17%
  13. 13Springfield
    17%
  14. 14Lima
    17%
  15. 15Toledo
    14%
  16. 16Sharonville
    13%
  17. 17New Albany
    13%
  18. 18Steubenville
    10%
  19. 19Lebanon
    10%
  20. 20Painesville
    10%
  21. 21Dent
    10%
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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, June 2023, smogrank.com/us/region/ohio/history/2023-06 (accessed 6 Oct 2026).

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