SmogRank / World / Japan / Aichi / March 2025

Most polluted cities in Aichi, Japan, March 2025

23 cities in Aichi, Japan ranked by their average PM2.5 over the 31 days. Worst: Tahara at 14.6 µg/m³, #982 of 2,809 cities in the world. Cleanest: Minamichita at 7.9. 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.

← Shinshiro 4% 4%0
Every city in Aichi, Japan ranked for March 2025, 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. 1Shinshiro
    4%
  2. 2Inuyama
    4%
  3. 3Tokoname
    4%
  4. 4Anjō
    3%
  5. 5Seto
    3%
  6. 6Hekinan
    3%
  7. 7Chiryū
    3%
  8. 8Ama
    3%
  9. 9Nisshin
    3%
  10. 10Tahara
    3%
  11. 11Kariya
    3%
  12. 12Owariasahi
    3%
  13. 13Nishio
    3%
  14. 14Handa
    3%
  15. 15Okazaki
    3%
  16. 15Tōkai
    3%
  17. 17Nagoya
    3%
  18. 18Toyohashi
    3%
  19. 19Gamagōri
    3%
  20. 20Ichinomiya
    3%
  21. 21Toyota
    3%
  22. 22Kaminoma
    0%
  23. 23Minamichita
    0%
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

All cities in the world, March 2025 · All cities in Japan, March 2025 · Aichi now

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SmogRank, most polluted cities in Aichi, Japan, PM2.5, March 2025, smogrank.com/jp/region/aichi/history/2025-03 (accessed 6 Oct 2026).

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