SmogRank / World / Asia / Japan / Hokkaido
Most polluted cities in Hokkaido, Japan
1 measured city, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Hakodate at 3.6 µg/m³, #1,120 in the world.
- 1Hakodate 200.2×
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Estimated: cities without a monitor
Hokkaido 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 |
|---|---|
| Ebetsu | ≈ 4 µg/m³ |
| Otaru | ≈ 5 µg/m³ |
| Iwamizawa | ≈ 4 µg/m³ |
| Eniwa | ≈ 5 µg/m³ |
| Kitahiroshima | ≈ 5 µg/m³ |
| Ishikari | ≈ 5 µg/m³ |
| Noboribetsu | ≈ 4 µg/m³ |
| Hokuto | ≈ 4 µg/m³ |
| Takikawa | ≈ 4 µg/m³ |
| Otofuke | ≈ 3 µg/m³ |
| Kamiiso | ≈ 4 µg/m³ |
| Abashiri | ≈ 3 µg/m³ |
| Date | ≈ 4 µg/m³ |
| Wakkanai | ≈ 5 µg/m³ |
| Nemuro | ≈ 6 µg/m³ |
| Bibai | ≈ 3 µg/m³ |
| Honchō | ≈ 4 µg/m³ |
| Nayoro | ≈ 3 µg/m³ |
| Makubetsu | ≈ 4 µg/m³ |
| Rumoi | ≈ 4 µg/m³ |
| Fukagawa | ≈ 4 µg/m³ |
| Shimo-furano | ≈ 3 µg/m³ |
| Sarubetsu | ≈ 3 µg/m³ |
| Nakashibetsu | ≈ 3 µg/m³ |
| Mombetsu | ≈ 3 µg/m³ |
| Motomachi | ≈ 3 µg/m³ |
| Shizunai-furukawachō | ≈ 4 µg/m³ |
| Shibetsu | ≈ 4 µg/m³ |
| Furano | ≈ 3 µg/m³ |
| Sunagawa | ≈ 4 µg/m³ |
| Minamishibetsuchō | ≈ 3 µg/m³ |
| Engaru | ≈ 2 µg/m³ |
| Ashibetsu | ≈ 4 µg/m³ |
| Yoichi | ≈ 4 µg/m³ |
| Memuro-minami | ≈ 4 µg/m³ |
| Shibetsu | ≈ 3 µg/m³ |
| Shiraoi | ≈ 4 µg/m³ |
| Tōbetsu | ≈ 4 µg/m³ |
| Yakumo | ≈ 4 µg/m³ |
| Kutchan | ≈ 4 µg/m³ |
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SmogRank, most polluted cities in Hokkaido, Japan, PM2.5, last 24 hours to 2 Oct 2026, 07:00 UTC, smogrank.com/jp/region/hokkaido.
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Updated 2026-10-02 07:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.