SmogRank / Countries / Japan / Shiga

Most polluted cities in Shiga, Japan

9 measured cities, last 7 days; 0 above the WHO 24-hour guideline. Worst: Nagahama at 7.1 µg/m³, #1,153 in the world.

9 good

  1. 1Nagahama 7.1
  2. 2Ōtsu 6.8
  3. 3Kusatsu 6.8
  4. 4Hikone 6.6
  5. 5Takashima 6.6
  6. 6Youkaichi 6.2
  7. 7Kitahama 5.6
  8. 8Ōmihachiman 5.3
  9. 9Kōka 4.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

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

Updated 2026-10-01 19:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.