SmogRank / World / Asia / Japan / Fukuoka

Most polluted cities in Fukuoka, Japan

22 measured cities, this year; 22 above the WHO annual guideline. Worst: Tanushimarumachi-toyoki at 10.9 µg/m³, #827 in the world.

About 0 people in these 3 cities breathed unhealthy air on an average day so far this year.

Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.

Kumamoto: 15 measured citiesMiyazaki: 9 measured citiesNagasaki: 13 measured citiesOita: 9 measured citiesSaga: 11 measured citiesYamaguchi: 13 measured citiesFukuoka: 22 measured cities#22 Yanagawa: 8.0 µg/m³#21 Yame: 8.3 µg/m³#20 Kasuga: 8.6 µg/m³#19 Buzen: 8.7 µg/m³#17 Nakama: 8.9 µg/m³#18 Munakata: 8.9 µg/m³#16 Wakasugi: 9.1 µg/m³#15 Yukuhashi: 9.2 µg/m³#11 Nōgata: 9.3 µg/m³#12 Koga: 9.3 µg/m³#13 Ukiha: 9.3 µg/m³#14 Itoshima: 9.3 µg/m³#10 Ogōri: 9.4 µg/m³#8 Tagawa: 9.7 µg/m³#9 Iizuka: 9.7 µg/m³#7 Kanda: 9.8 µg/m³#5 Kitakyushu: 10.2 µg/m³#6 Koga: 10.2 µg/m³#4 Fukuoka: 10.6 µg/m³#1 Tanushimarumachi-toyoki: 10.9 µg/m³#2 Ōmuta: 10.9 µg/m³#3 Maebaru-chūō: 10.9 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Fukuoka 0 0.750
Every measured city in Fukuoka, Japan with monitors in two or more places, one column each, ranked by people breathing unhealthy air: height is people on an average day, colour its average. Point at it to read a city; tap to open it.
  1. 1Fukuoka 0
  2. 2Kitakyushu 0
  3. 3Kanda 0
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

Fukuoka 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
Chikushino-shi≈ 8 µg/m³Good
Ōnojō≈ 8 µg/m³Good
Dazaifu≈ 8 µg/m³Good
Fukutsu≈ 8 µg/m³Good
Asakura≈ 7 µg/m³Good
Katanawa≈ 8 µg/m³Good
Chikugo≈ 10 µg/m³Moderate
Nishifukuma≈ 8 µg/m³Good
Amagi≈ 7 µg/m³Good
Umi≈ 7 µg/m³Good
Ōkawa≈ 10 µg/m³Moderate
Miyama≈ 10 µg/m³Moderate
Kami≈ 7 µg/m³Good
Shingū≈ 8 µg/m³Good
Sasaguri≈ 8 µg/m³Good
Yurigaoka≈ 6 µg/m³Good
Yamaguma≈ 7 µg/m³Good
Sue≈ 7 µg/m³Good
Miyaodai≈ 6 µg/m³Good
Miyawaka≈ 7 µg/m³Good
Setakamachi-takayanagi≈ 10 µg/m³Moderate
Akaike≈ 7 µg/m³Good
Miyata≈ 7 µg/m³Good
Hirokawa≈ 10 µg/m³Moderate
Miyako≈ 8 µg/m³Good
Kawasaki≈ 7 µg/m³Good
Tsuiki≈ 6 µg/m³Good
Tachiarai≈ 6 µg/m³Good
Inokura≈ 6 µg/m³Good

Bad-air episodes in Fukuoka

Times when many cities around here had PM2.5 at twice their usual or more on the same days.

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SmogRank, most polluted cities in Fukuoka, Japan, PM2.5, this year to 6 Oct 2026, 23:00 UTC, smogrank.com/jp/region/fukuoka?w=year.

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Updated 2026-10-06 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.