Air quality in Fukushima, Japan today
Mr. Duck’s Air Quality Score
Good air today for Fukushima, Japan
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Fukushima is classified as Good today. The primary pollutant identified is PM2.5, fine particulate matter that is being monitored across the city.
Measurements from five valid sampling points show a PM2.5 concentration of 3.0 µg/m³. No PM10 reference value is available for this assessment. Data is shown via OpenAQ. 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 Fukushima draws from a single monitoring site located at 福島市森合字中谷地4‑4 and contains five rows of recent measurements—one row for each of the pollutants tracked in this city: nitrogen monoxide (NO), nitrogen dioxide (NO₂), combined nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO2). All five observations were recorded at the same moment, 2026‑02‑10 22:00 UTC, which falls within the “updated within three days” freshness window, so the data represent the most current snapshot available from this source.
Across the pollutants the reported values are very narrow. NO and SO2 both read a flat 0.0 ppm, indicating no detectable concentration at the time of sampling. NO₂ and NOX each show an identical reading of 0.011 ppm; their minimum, median, maximum, 10th‑percentile and 90th‑percentile values are all the same, reflecting a lack of variability in this single‑station record. PM2.5 is reported as 3.0 µg/m³, again with no spread between its statistical markers. Because there is only one monitoring location, the dataset cannot capture spatial differences that may exist elsewhere in Fukushima, and the uniform timestamps mean temporal change cannot be assessed from these rows alone.
In summary, the data set includes five pollutants measured at one site, all updated on 2026‑02‑10 22:00 UTC. The values are constant across each pollutant’s statistical range, and the coverage is limited to this single point in the city, so while the snapshot is fresh, it provides only a narrow view of overall air quality conditions.
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 data shown reflects five valid measurements and is updated within three days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. While this snapshot provides a current overview of Fukushima’s air quality, conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 福島市森合字中谷地4-4 | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 福島市森合字中谷地4-4 | no2 | 0.011 | ppm | 2026-02-10 22:00 UTC |
| 福島市森合字中谷地4-4 | nox | 0.011 | ppm | 2026-02-10 22:00 UTC |
| 福島市森合字中谷地4-4 | pm25 | 3.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 福島市森合字中谷地4-4 | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |