Air quality in Beppu, Japan today
Mr. Duck’s Air Quality Score
Good air today for Beppu, 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 Beppu is currently classified as Good. The primary pollutant measured is PM2.5, with a reported concentration of 2.0 µg/m³ based on five valid observations from OpenAQ data.
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 Beppu includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All of these come from a single monitoring site located at 別府市大字別府字野口原３０８８－１, so the station count is one row per pollutant. The most recent observation for each compound was recorded on 2026-02-10 22:00 UTC and is flagged as having been updated within three days, meaning the data are currently fresh.
Across the five pollutants the reported values show no variation; each has a single observed figure that also serves as its minimum, median and maximum. NO registers at 0.001 ppm, NO₂ at 0.003 ppm, NOX at 0.004 ppm, PM2.5 at 2.0 µg/m³ and SO₂ again at 0.001 ppm. Because the dataset contains only one measurement per pollutant, there is no spread to describe – the 10th and 90th percentiles are identical to the median for every compound.
The uniformity of timestamps indicates that all readings were taken at the same moment, providing a snapshot rather than a time‑series view. With just one monitoring location, spatial coverage within Beppu is limited; conditions elsewhere in the city may differ from those captured at this site. Nonetheless, the data are up‑to‑date as of early February 2026 and give a clear baseline for each listed pollutant at the recorded time.
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 for Beppu is based on five valid measurements and was updated within three days, with the most recent reading recorded at 2026‑02‑10T22:00:00+00:00. This snapshot reflects conditions at specific monitoring points and times; air quality can differ across neighborhoods and throughout the day, so values may not represent every location or moment in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 別府市大字別府字野口原３０８８－１ | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 別府市大字別府字野口原３０８８－１ | no2 | 0.003 | ppm | 2026-02-10 22:00 UTC |
| 別府市大字別府字野口原３０８８－１ | nox | 0.004 | ppm | 2026-02-10 22:00 UTC |
| 別府市大字別府字野口原３０８８－１ | pm25 | 2.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 別府市大字別府字野口原３０８８－１ | so2 | 0.001 | ppm | 2026-02-10 22:00 UTC |