Air quality in Kunisaki, Japan today
Mr. Duck’s Air Quality Score
Good air today for Kunisaki, 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 Kunisaki is classified as Good today. The primary pollutant identified is PM2.5, with a measured concentration of 6.0 µg/m³ based on five valid observations reported through OpenAQ.
No other pollutants reached the reporting threshold, and the data reflect the current assessment for this location. 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 Kunisaki currently draws from a single monitoring site located at 国東市国東町鶴川1974. All five pollutants tracked by OpenAQ – nitrogen monoxide (NO), nitrogen dioxide (NO2), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO2) – are reported from this one station, so the spatial coverage is limited to that specific point in the city.
Each pollutant shows a single recorded value because the most recent measurement was logged on 2026‑02‑10 at 22:00 UTC, which falls within the “updated within 3 days” freshness window. For NO the concentration is 0.001 ppm; for NO2 it is 0.008 ppm; for NOX it is 0.009 ppm; PM2.5 registers 6.0 µg/m³; and SO2 also reads 0.001 ppm. The statistical summary for every pollutant lists identical minimum, median and maximum figures, indicating that only one data point is available for each.
Because the dataset contains just one row (rt = 5 rows overall but only one active station), there is no variation to describe across time or location. Consequently, any assessment of city‑wide air quality must acknowledge that conditions can differ elsewhere in Kunisaki and at other times. The current snapshot provides a recent, point‑in‑time view from a single site, with all values freshly updated as of the early February timestamp.
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 view 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 Kunisaki.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 国東市国東町鶴川1974 | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 国東市国東町鶴川1974 | no2 | 0.008 | ppm | 2026-02-10 22:00 UTC |
| 国東市国東町鶴川1974 | nox | 0.009 | ppm | 2026-02-10 22:00 UTC |
| 国東市国東町鶴川1974 | pm25 | 6.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 国東市国東町鶴川1974 | so2 | 0.001 | ppm | 2026-02-10 22:00 UTC |