SmogRank / Countries / Japan / Oita

Most polluted cities in Oita, Japan

9 measured cities ranked by PM2.5, this year. Worst: Hita at 13.0 µg/m³, #385 in the world.

#City µg/m³× WHO
1Hita Oita
13.02.6×
2Beppu Oita
10.22.0×
3Ōita Oita
9.31.9×
4Tsurusaki Oita
9.21.8×
5Hiji Oita
8.91.8×
6Nakatsu Oita
8.81.8×
7Mie Oita
8.71.7×
8Tsukumiura Oita
8.51.7×
9Saiki Oita
8.31.7×
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

Oita 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
Yokkaichi estimated≈ 6 µg/m³Good
Usuki estimated≈ 7 µg/m³Good
Kitsuki estimated≈ 8 µg/m³Good
Bungo-Takada-shi estimated≈ 6 µg/m³Good
Tsukawaki estimated≈ 8 µg/m³Good

Updated 2026-10-01 08:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.