SmogRank / Countries / Japan / Shiga

Most polluted cities in Shiga, Japan

9 measured cities ranked by PM2.5, last 7 days. Worst: Nagahama at 7.3 µg/m³, #1142 in the world.

#City µg/m³
1Nagahama Shiga
7.3
2Ōtsu Shiga
7.2
3Kusatsu Shiga
7.1
4Hikone Shiga
6.8
5Takashima Shiga
6.8
6Youkaichi Shiga
6.4
7Kitahama Shiga
5.9
8Ōmihachiman Shiga
5.4
9Kōka Shiga
4.7
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

Shiga 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
Moriyama estimated≈ 5 µg/m³Good
Rittō estimated≈ 5 µg/m³Good
Konan estimated≈ 8 µg/m³Good
Yasu estimated≈ 5 µg/m³Good
Minakuchichō-matoba estimated≈ 8 µg/m³Good
Maibara estimated≈ 7 µg/m³Good
Hino estimated≈ 8 µg/m³Good
Echigawa estimated≈ 6 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.