Air quality in Fukuoka, Japan today

Mr. Duck’s Air Quality Score

Good air today for Fukuoka, Japan

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Fukuoka is currently classified as Good. The primary pollutant identified is PM2.5, with a measured concentration of 8.0 µg/m³ based on 38 valid observations reported through OpenAQ.

These measurements indicate that fine particulate levels are within the range associated with the Good category. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.

Latest sensor values

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

What the data includes

The dataset for Fukuoka currently contains nine reporting rows, each providing a snapshot of one of five measured pollutants: nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All nine rows were last updated on 2026‑02‑10 at 22:00 UTC, so the most recent observations are less than three days old.

For the gases, the recorded values are very low. NO is consistently reported as 0.0 ppm, with a maximum of only 0.007 ppm across all rows; both the median and the 10th percentile are zero. NO₂ and NOX share identical central tendencies – a median of 0.006 ppm – and their ranges extend from about 0.003 ppm up to 0.019 ppm for NO₂ and 0.025 ppm for NOX, indicating modest variability. SO₂ is the least frequently measured, appearing in just two rows; its values range from 0.0 to 0.001 ppm, with a median of 0.0005 ppm.

PM2.5 is the only pollutant reported in micrograms per cubic metre. All nine rows include this metric, showing a median concentration of 6 µg/m³ and a spread from 4 µg/m³ to 8 µg/m³ (10th‑percentile 4.8 µg/m³, 90th‑percentile 7.2 µg/m³). The example reading at the Spring Garden address (福岡市中央区春吉１－１７－３８) records 7.0 µg/m³.

Overall, the data set offers full coverage for NO, NO₂, NOX and PM2.5 but limited coverage for SO₂, with only two recent entries. The timestamps are uniformly fresh (all within three days), yet the small number of rows means city‑wide conditions could differ across neighborhoods and times not captured by this snapshot.

Learn more about sources and filtering: About the data.

Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)

Latest sensor values (bars)

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

Data notes

The dataset for Fukuoka includes 38 valid measurements and is updated within 3 days, with the most recent values recorded on 2026‑02‑10T22:00:00+00:00. These figures represent a snapshot of ambient conditions across the monitoring network; actual air quality can differ by specific location and time of day within the city, so individual experiences may vary from the reported averages.

OpenAQ station rows