SmogRank / Countries / Japan / Yamanashi

Most polluted cities in Yamanashi, Japan

6 measured cities ranked by PM2.5, this year. Worst: Kofu at 8.9 µg/m³, #1014 in the world.

#City µg/m³× WHO
1Kofu Yamanashi
8.91.8×
2Fuefuki Yamanashi
8.71.7×
3Ōtsuki Yamanashi
7.81.6×
4Minami-Alps Yamanashi
7.81.6×
5Fujiyoshida Yamanashi
7.41.5×
6Uenohara Yamanashi
7.21.4×
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

Yamanashi 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
Kai estimated≈ 4 µg/m³Good
Minamiarupusu estimated≈ 4 µg/m³Good
Hokuto estimated≈ 4 µg/m³Good
Ryūō estimated≈ 4 µg/m³Good
Kōshū estimated≈ 5 µg/m³Good
Chūō estimated≈ 4 µg/m³Good
Tsuru estimated≈ 4 µg/m³Good
Isawa estimated≈ 5 µg/m³Good
Nirasaki estimated≈ 4 µg/m³Good
Fujikawaguchiko estimated≈ 5 µg/m³Good
Enzan estimated≈ 5 µg/m³Good
Shōwa estimated≈ 4 µg/m³Good

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