SmogRank / Countries / Japan / Oita

Most polluted cities in Oita, Japan

9 measured cities ranked by PM2.5, last 7 days. Worst: Hita at 11.2 µg/m³, #418 in the world.

#City µg/m³
1Hita Oita
11.2
2Beppu Oita
9.9
3Tsukumiura Oita
8.7
4Mie Oita
8.5
5Tsurusaki Oita
8.4
6Saiki Oita
8.2
7Ōita Oita
7.9
8Nakatsu Oita
7.5
9Hiji Oita
7.0
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 07:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.