SmogRank / Countries / Japan / Hiroshima

Most polluted cities in Hiroshima, Japan

12 measured cities, this year; 12 above the WHO annual guideline. Worst: Onomichi at 13.4 µg/m³, #377 in the world.

3 good  9 moderate

  1. 1Onomichi 13.42.7×
  2. 2Fukuyama 12.42.5×
  3. 3Shin’ichi 12.22.4×
  4. 4Higashihiroshima 10.62.1×
  5. 5Kure 10.12.0×
  6. 6Ōtake 9.82.0×
  7. 7Hiroshima 9.71.9×
  8. 8Mihara 9.61.9×
  9. 9Takehara 9.41.9×
  10. 10Gion 8.91.8×
  11. 11Yae 8.71.7×
  12. 12Miyoshi 8.41.7×
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

Hiroshima 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
Hatsukaichi≈ 10 µg/m³Moderate
Fuchū≈ 9 µg/m³Moderate
Fuchūchō≈ 9 µg/m³Moderate
Kannabechō-yahiro≈ 10 µg/m³Moderate
Shōbara≈ 7 µg/m³Good
Aki-takata≈ 6 µg/m³Good
Kaitaichi≈ 9 µg/m³Moderate
Ōno-hara≈ 10 µg/m³Moderate
Innoshima≈ 10 µg/m³Moderate
Etajima≈ 9 µg/m³Moderate
Kumano≈ 9 µg/m³Moderate
Kōzan≈ 9 µg/m³Moderate

Updated 2026-10-01 20:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.