SmogRank / Countries / Japan / Toyama

Most polluted cities in Toyama, Japan

8 measured cities, this year; 8 above the WHO annual guideline. Worst: Nyūzen at 10.0 µg/m³, #660 in the world.

3 good  5 moderate

  1. 1Nyūzen 10.02.0×
  2. 2Toyama 9.82.0×
  3. 3Himimachi 9.61.9×
  4. 4Imizu 9.61.9×
  5. 5Takaoka 9.41.9×
  6. 6Uozu 8.71.7×
  7. 7Tonami 8.41.7×
  8. 8Oyabe 7.21.4×
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

Toyama 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
Nanto-shi≈ 4 µg/m³Good
Nanto≈ 5 µg/m³Good
Himi≈ 7 µg/m³Good
Kurobe-shi≈ 5 µg/m³Good
Nishishinminato≈ 7 µg/m³Good
Gohyakkoku≈ 7 µg/m³Good
Yatsuomachi-higashikumisaka≈ 3 µg/m³Good
Kamiichi≈ 7 µg/m³Good
Fukumitsu≈ 5 µg/m³Good

Updated 2026-10-01 20:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.