SmogRank / Countries / Japan / Kumamoto

Most polluted cities in Kumamoto, Japan

15 measured cities, this year; 15 above the WHO annual guideline. Worst: Hondomachi-hondo at 10.3 µg/m³, #592 in the world.

2 good  13 moderate

  1. 1Hondomachi-hondo 10.32.1×
  2. 2Arao 10.22.0×
  3. 3Uekimachi-mōno 10.12.0×
  4. 4Ōyanomachi-noboritate 9.92.0×
  5. 5Tamana 9.82.0×
  6. 6Ōzu 9.82.0×
  7. 7Kotō 9.82.0×
  8. 8Kumamoto 9.71.9×
  9. 9Kikuchi 9.61.9×
  10. 10Honmachi 9.41.9×
  11. 11Uto 9.41.9×
  12. 12Mifune 9.31.9×
  13. 13Minamata 9.11.8×
  14. 14Hitoyoshi 8.61.7×
  15. 15Aso 7.81.6×
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

Kumamoto 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
Amakusa≈ 8 µg/m³Good
Kōshi≈ 10 µg/m³Moderate
Uki≈ 10 µg/m³Moderate
Okino≈ 10 µg/m³Moderate
Shimada≈ 10 µg/m³Moderate
Matsubase≈ 10 µg/m³Moderate
Ushibukamachi≈ 9 µg/m³Good
Nagasu≈ 8 µg/m³Good
Sashiki≈ 10 µg/m³Moderate

Updated 2026-10-01 23:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.