SmogRank / Countries / Japan / Aichi

Most polluted cities in Aichi, Japan

23 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Owariasahi at 8.8 µg/m³, #507 in the world.

23 good

  1. 1Owariasahi 8.8
  2. 2Hekinan 8.0
  3. 3Okazaki 7.6
  4. 4Tōkai 7.5
  5. 5Tokoname 7.4
  6. 6Kariya 7.3
  7. 7Tahara 7.1
  8. 8Nishio 7.1
  9. 9Nagoya 7.1
  10. 10Handa 6.9
  11. 11Chiryū 6.8
  12. 12Anjō 6.7
  13. 13Ama 6.7
  14. 14Toyota 6.5
  15. 15Seto 6.4
  16. 16Inuyama 6.4
  17. 17Nisshin 6.2
  18. 18Ichinomiya 6.1
  19. 19Gamagōri 6.1
  20. 20Kaminoma 6.1
  21. 21Minamichita 5.7
  22. 22Toyohashi 5.6
  23. 23Shinshiro 4.4
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

Estimated: cities without a monitor

Aichi cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Kasugai≈ 8 µg/m³Good
Toyokawa≈ 6 µg/m³Good
Komaki≈ 8 µg/m³Good
Inazawa≈ 8 µg/m³Good
Kōnan≈ 9 µg/m³Good
Ōbu≈ 11 µg/m³Moderate
Kitanagoya≈ 9 µg/m³Good
Chita≈ 11 µg/m³Moderate
Toyoake≈ 11 µg/m³Moderate
Tsushima≈ 9 µg/m³Good
Kiyosu≈ 9 µg/m³Good
Miyoshi≈ 10 µg/m³Moderate
Aisai≈ 9 µg/m³Good
Nagakute≈ 9 µg/m³Good
Ogawa≈ 9 µg/m³Moderate
Takahama≈ 9 µg/m³Moderate
Iwakura≈ 9 µg/m³Good
Morowa≈ 10 µg/m³Moderate
Taketoyo≈ 9 µg/m³Good
Kōta≈ 8 µg/m³Good
Kanie≈ 9 µg/m³Good
Fusō≈ 12 µg/m³Moderate
Kuroda≈ 9 µg/m³Good
Ōharu≈ 9 µg/m³Good
Ōguchi≈ 12 µg/m³Moderate
Ishiki≈ 9 µg/m³Good
Sobue≈ 9 µg/m³Good
Toyohama≈ 9 µg/m³Moderate
Toyoyama≈ 8 µg/m³Good

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SmogRank, most polluted cities in Aichi, Japan, PM2.5, last 30 days to 2 Oct 2026, 00:00 UTC, smogrank.com/jp/region/aichi?w=30d.

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Updated 2026-10-02 00:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.