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, #708 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 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Aichi, Japan, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Owariasahi 15▼229
  2. 2Tokoname 15▼257
  3. 3Hekinan 15▼239
  4. 4Tōkai 14▼223
  5. 5Okazaki 14▼245
  6. 6Kariya 13▼311
  7. 7Handa 13▼290
  8. 8Nishio 13▼282
  9. 9Nagoya 13▼288
  10. 10Ama 13▼244
  11. 11Tahara 13▼352
  12. 12Chiryū 12▼297
  13. 13Kaminoma 12▼253
  14. 14Toyota 12▼257
  15. 15Anjō 12▼252
  16. 16Seto 12▼303
  17. 17Minamichita 12▼287
  18. 18Toyohashi 11▼337
  19. 19Gamagōri 11▼304
  20. 20Inuyama 11▼398
  21. 21Ichinomiya 11▼310
  22. 22Nisshin 11▼335
  23. 23Shinshiro 8▼451
Excellent0–50
Good51–100
Lightly polluted101–150
Moderately polluted151–200
Heavily polluted201–300
Severely polluted301+

China's Air Quality Index (HJ 633-2012), PM2.5 individual index. 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/m³Excellent
Toyokawa≈ 6 µg/m³Excellent
Komaki≈ 8 µg/m³Excellent
Inazawa≈ 8 µg/m³Excellent
Kōnan≈ 9 µg/m³Excellent
Ōbu≈ 11 µg/m³Excellent
Kitanagoya≈ 9 µg/m³Excellent
Chita≈ 11 µg/m³Excellent
Toyoake≈ 11 µg/m³Excellent
Tsushima≈ 9 µg/m³Excellent
Kiyosu≈ 9 µg/m³Excellent
Miyoshi≈ 10 µg/m³Excellent
Aisai≈ 9 µg/m³Excellent
Nagakute≈ 9 µg/m³Excellent
Ogawa≈ 9 µg/m³Excellent
Takahama≈ 9 µg/m³Excellent
Iwakura≈ 9 µg/m³Excellent
Morowa≈ 10 µg/m³Excellent
Taketoyo≈ 9 µg/m³Excellent
Kōta≈ 8 µg/m³Excellent
Kanie≈ 9 µg/m³Excellent
Fusō≈ 12 µg/m³Excellent
Kuroda≈ 9 µg/m³Excellent
Ōharu≈ 9 µg/m³Excellent
Ōguchi≈ 12 µg/m³Excellent
Ishiki≈ 9 µg/m³Excellent
Sobue≈ 9 µg/m³Excellent
Toyohama≈ 9 µg/m³Excellent
Toyoyama≈ 8 µg/m³Excellent

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SmogRank, most polluted cities in Aichi, Japan, PM2.5, last 7 days to 2 Oct 2026, 06:00 UTC, smogrank.com/jp/region/aichi?w=7d.

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Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the China AQI PM2.5 sub-index.