SmogRank / Countries / Japan / Nagasaki
Most polluted cities in Nagasaki, Japan
11 measured cities ranked by PM2.5, this year. Worst: Sasebo at 10.2 µg/m³, #609 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Sasebo Nagasaki | 10.2 | |
| 2 | Togitsu Nagasaki | 9.4 | |
| 3 | Tsushima Nagasaki | 9.3 | |
| 4 | Matsuura Nagasaki | 9.1 | |
| 5 | Ōmura Nagasaki | 8.7 | |
| 6 | Gotō Nagasaki | 8.7 | |
| 7 | Isahaya Nagasaki | 8.3 | |
| 8 | Obita Nagasaki | 8.2 | |
| 9 | Nagasaki Nagasaki | 8.2 | |
| 10 | Iki Nagasaki | 7.9 | |
| 11 | Saikai Nagasaki | 7.8 |
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
Nagasaki 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.
| City | 7-day estimate |
|---|---|
| Shimabara estimated | ≈ 8 µg/m³ |
| Minamishimabara estimated | ≈ 8 µg/m³ |
| Unzen estimated | ≈ 8 µg/m³ |
| Hirado estimated | ≈ 5 µg/m³ |
| Fukuechō estimated | ≈ 7 µg/m³ |
| Kamigotō estimated | ≈ 6 µg/m³ |
Updated 2026-10-01 10:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.