SmogRank / World / Asia / Japan / Fukui

Most polluted cities in Fukui, Japan

2 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Fukui-shi at 6.4 µg/m³, #695 in the world.

Hyōgo: 6 measured citiesIshikawa: 1 measured cityKyotoMie: 2 measured citiesShiga: 1 measured cityToyamaFukui: 2 measured citiesAichi: 4 measured citiesGifu: 2 measured cities#2 Ono: 4.5 µg/m³#1 Fukui-shi: 6.4 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
  1. 1Fukui-shi 360.4×
  2. 2Ono 250.3×
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

Fukui 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
Sakai≈ 7 µg/m³Good
Echizen≈ 7 µg/m³Good
Takefu≈ 7 µg/m³Good
Maruoka≈ 5 µg/m³Good
Awara≈ 8 µg/m³Good
Katsuyama≈ 5 µg/m³Good
Iijima≈ 5 µg/m³Good

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SmogRank, most polluted cities in Fukui, Japan, PM2.5, last 24 hours to 2 Oct 2026, 12:00 UTC, smogrank.com/jp/region/fukui.

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Updated 2026-10-02 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.