SmogRank / Countries / Japan / Yamaguchi
Most polluted cities in Yamaguchi, Japan
13 measured cities ranked by PM2.5, last 30 days. Worst: Onoda at 7.1 µg/m³, #825 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Onoda Yamaguchi | 7.1 | |
| 2 | Hagi Yamaguchi | 7.1 | |
| 3 | Shimonoseki Yamaguchi | 7.0 | |
| 4 | Shūnan Yamaguchi | 6.5 | |
| 5 | Hōfu Yamaguchi | 6.4 | |
| 6 | Mine Yamaguchi | 6.4 | |
| 7 | Ube Yamaguchi | 6.3 | |
| 8 | Iwakuni Yamaguchi | 6.2 | |
| 9 | Yanai Yamaguchi | 6.1 | |
| 10 | Kudamatsu Yamaguchi | 6.0 | |
| 11 | Yamaguchi Yamaguchi | 5.8 | |
| 12 | Nagato Yamaguchi | 5.7 | |
| 13 | Hikari Yamaguchi | 5.6 |
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
Estimated: cities without a monitor
Yamaguchi 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.
| City | 7-day estimate |
|---|---|
| Tokuyama estimated | ≈ 7 µg/m³ |
| Sanyōonoda estimated | ≈ 6 µg/m³ |
| Ogōri-shimogō estimated | ≈ 8 µg/m³ |
Updated 2026-10-01 09:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.