SmogRank / Countries / Japan / Ehime
Most polluted cities in Ehime, Japan
9 measured cities, last 7 days; 0 above the WHO 24-hour guideline. Worst: Saijō at 9.3 µg/m³, #606 in the world.
8 good 1 moderate
- 1Saijō 9.3
- 2Yawatahama 8.7
- 3Niihama 8.6
- 4Uwajima 8.5
- 5Shikokuchūō 8.5
- 6Matsuyama 8.4
- 7Iyo 7.9
- 8Shinagawa 7.8
- 9Imabari 7.4
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
Ehime 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 |
|---|---|
| Ōzu | ≈ 9 µg/m³ |
| Kawanoechō | ≈ 9 µg/m³ |
| Uwa | ≈ 9 µg/m³ |
| Tōon | ≈ 9 µg/m³ |
| Masaki-chō | ≈ 9 µg/m³ |
| Hōjō | ≈ 11 µg/m³ |
| Haramachi | ≈ 9 µg/m³ |
| Mishōhirajō | ≈ 9 µg/m³ |
| Uchiko | ≈ 10 µg/m³ |
Updated 2026-10-01 19:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.