SmogRank / World / Asia / Japan / Aichi

Most polluted cities in Aichi, Japan

23 measured cities, last 7 days; 0 above the WHO 24-hour guideline. Worst: Owariasahi at 10.4 µg/m³, #706 in the world.

Mie: 16 measured citiesNagano: 10 measured citiesShizuoka: 18 measured citiesFukui: 6 measured citiesAichi: 23 measured citiesGifu: 15 measured cities#23 Shinshiro: 5.4 µg/m³#22 Nisshin: 7.1 µg/m³#20 Inuyama: 7.3 µg/m³#21 Ichinomiya: 7.3 µg/m³#18 Toyohashi: 7.6 µg/m³#19 Gamagōri: 7.6 µg/m³#17 Minamichita: 7.8 µg/m³#16 Seto: 7.9 µg/m³#14 Toyota: 8.0 µg/m³#15 Anjō: 8.0 µg/m³#12 Chiryū: 8.1 µg/m³#13 Kaminoma: 8.1 µg/m³#11 Tahara: 8.5 µg/m³#10 Ama: 8.6 µg/m³#9 Nagoya: 8.7 µg/m³#8 Nishio: 8.8 µg/m³#7 Handa: 9.0 µg/m³#6 Kariya: 9.1 µg/m³#5 Okazaki: 9.5 µg/m³#4 Tōkai: 9.7 µg/m³#2 Tokoname: 9.9 µg/m³#3 Hekinan: 9.9 µg/m³#1 Owariasahi: 10.4 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Owariasahi 10.4 WHO 24-hour guideline
Every measured city in Aichi, Japan, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1Owariasahi 10.4▼227
  2. 2Tokoname 9.9▼251
  3. 3Hekinan 9.9▼232
  4. 4Tōkai 9.7▼224
  5. 5Okazaki 9.5▼242
  6. 6Kariya 9.1▼303
  7. 7Handa 9.0▼288
  8. 8Nishio 8.8▼283
  9. 9Nagoya 8.7▼295
  10. 10Ama 8.6▼251
  11. 11Tahara 8.5▼357
  12. 12Chiryū 8.1▼308
  13. 13Kaminoma 8.1▼264
  14. 14Toyota 8.0▼261
  15. 15Anjō 8.0▼256
  16. 16Seto 7.9▼310
  17. 17Minamichita 7.8▼286
  18. 18Toyohashi 7.6▼335
  19. 19Gamagōri 7.6▼303
  20. 20Inuyama 7.3▼392
  21. 21Ichinomiya 7.3▼298
  22. 22Nisshin 7.1▼322
  23. 23Shinshiro 5.4▼462
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

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/m³Fair
Toyokawa≈ 6 µg/m³Fair
Komaki≈ 8 µg/m³Fair
Inazawa≈ 8 µg/m³Fair
Kōnan≈ 9 µg/m³Fair
Ōbu≈ 11 µg/m³Fair
Kitanagoya≈ 9 µg/m³Fair
Chita≈ 11 µg/m³Fair
Toyoake≈ 11 µg/m³Fair
Tsushima≈ 9 µg/m³Fair
Kiyosu≈ 9 µg/m³Fair
Miyoshi≈ 10 µg/m³Fair
Aisai≈ 9 µg/m³Fair
Nagakute≈ 9 µg/m³Fair
Ogawa≈ 9 µg/m³Fair
Takahama≈ 9 µg/m³Fair
Iwakura≈ 9 µg/m³Fair
Morowa≈ 10 µg/m³Fair
Taketoyo≈ 9 µg/m³Fair
Kōta≈ 8 µg/m³Fair
Kanie≈ 9 µg/m³Fair
Fusō≈ 12 µg/m³Fair
Kuroda≈ 9 µg/m³Fair
Ōharu≈ 9 µg/m³Fair
Ōguchi≈ 12 µg/m³Fair
Ishiki≈ 9 µg/m³Fair
Sobue≈ 9 µg/m³Fair
Toyohama≈ 9 µg/m³Fair
Toyoyama≈ 8 µg/m³Fair

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SmogRank, most polluted cities in Aichi, Japan, PM2.5, last 7 days to 2 Oct 2026, 04:00 UTC, smogrank.com/jp/region/aichi?w=7d.

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Updated 2026-10-02 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.