SmogRank / Countries / Japan / Kochi

Most polluted cities in Kochi, Japan

6 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Susaki at 8.3 µg/m³, #574 in the world.

6 good

  1. 1Susaki 8.3
  2. 2Nakamura 6.8
  3. 3Kochi 6.8
  4. 4Nankoku 6.3
  5. 5Ino 6.2
  6. 6Aki 5.7
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

Kochi 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
Shimoda≈ 10 µg/m³Moderate
Yamashita≈ 10 µg/m³Moderate
Tosayamadachō-nakano≈ 10 µg/m³Moderate
Tosa≈ 10 µg/m³Moderate
Sukumo≈ 9 µg/m³Moderate
Muroto-misakicho≈ 11 µg/m³Moderate

Updated 2026-10-01 17:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.