SmogRank / World / Japan / Aichi / February 2026

Most polluted cities in Aichi, Japan, February 2026

22 cities in Aichi, Japan ranked by their average PM2.5 over the 28 days. Worst: Tahara at 14.2 µg/m³, #839 of 2,841 cities in the world. Cleanest: Seto at 8.1. 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.

← Tahara 0% 0.75%0
Every city in Aichi, Japan ranked for February 2026, 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. 1Tahara
    0%
  2. 2Kariya
    0%
  3. 3Nishio
    0%
  4. 4Tōkai
    0%
  5. 5Handa
    0%
  6. 5Owariasahi
    0%
  7. 7Tokoname
    0%
  8. 8Okazaki
    0%
  9. 9Minamichita
    0%
  10. 10Toyohashi
    0%
  11. 10Nagoya
    0%
  12. 10Hekinan
    0%
  13. 13Ichinomiya
    0%
  14. 13Chiryū
    0%
  15. 15Anjō
    0%
  16. 15Kaminoma
    0%
  17. 17Gamagōri
    0%
  18. 18Ama
    0%
  19. 19Inuyama
    0%
  20. 20Nisshin
    0%
  21. 21Toyota
    0%
  22. 22Seto
    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, February 2026 · All cities in Japan, February 2026 · Aichi now

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SmogRank, most polluted cities in Aichi, Japan, PM2.5, February 2026, smogrank.com/jp/region/aichi/history/2026-02 (accessed 6 Oct 2026).

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