Air quality in Iizuka, Japan today
Mr. Duck’s Air Quality Score
Good air today for Iizuka, 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 Iizuka is classified as Good today. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 5.0 µg/m³ based on five valid observations recorded by OpenAQ.
Overall conditions meet the Good category criteria, and no additional pollutants are reported for this assessment. 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 Iizuka contains five individual measurement rows, each reporting a single pollutant from the same monitoring location at 飯塚市平恒1番地47. All five pollutants—nitric oxide (NO), nitrogen dioxide (NO2), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO2)—are represented, giving a complete picture of the key gases and particles tracked by OpenAQ for this city.
Every row was last updated on 2026-02-10 at 22:00 UTC, which falls within the “updated within three days” freshness window, so the data are current as of early February. The values show virtually no variation across the sample period: NO is consistently 0.001 ppm, NO2 stays at 0.004 ppm, NOX at 0.005 ppm, PM2.5 remains fixed at 5.0 µg/m³ and SO2 registers as 0.0 ppm in every record. Because each pollutant has a single recorded value (minimum, median, maximum and the 10th‑90th percentiles are identical), there is no observable spread or trend within this snapshot.
With only one monitoring site contributing all five rows, coverage across Iizuka is limited to that specific address; other neighborhoods are not represented in the current feed. Nonetheless, the data are fresh and uniformly reported, so any assessment of city‑wide air quality should consider the narrow spatial scope and the lack of temporal variation in these measurements.
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 was refreshed recently, with the latest update recorded on 2026‑02‑10 at 22:00 UTC; it is considered “Updated within 3 days.” This snapshot provides a brief overview of current conditions, but air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in Iizuka.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 飯塚市平恒1番地47 | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 飯塚市平恒1番地47 | no2 | 0.004 | ppm | 2026-02-10 22:00 UTC |
| 飯塚市平恒1番地47 | nox | 0.005 | ppm | 2026-02-10 22:00 UTC |
| 飯塚市平恒1番地47 | pm25 | 5.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 飯塚市平恒1番地47 | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |