SmogRank / Countries / Japan / Yamagata

Most polluted cities in Yamagata, Japan

8 measured cities ranked by PM2.5, this year. Worst: Nagai at 9.7 µg/m³, #727 in the world.

#City µg/m³× WHO
1Nagai Yamagata
9.71.9×
2Sagae Yamagata
8.91.8×
3Tsuruoka Yamagata
8.71.7×
4Higashine Yamagata
8.71.7×
5Yonezawa Yamagata
8.41.7×
6Shonai Yamagata
8.41.7×
7Shinjō Yamagata
8.11.6×
8Yamagata Yamagata
7.61.5×
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

Yamagata 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
Tendō estimated≈ 6 µg/m³Good
Kaminoyama estimated≈ 6 µg/m³Good
Nanyō estimated≈ 5 µg/m³Good
Takahata estimated≈ 5 µg/m³Good
Murayama estimated≈ 6 µg/m³Good
Obanazawa estimated≈ 5 µg/m³Good
Yachi estimated≈ 6 µg/m³Good

Updated 2026-10-01 09:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.