Air quality in Matsuura, Japan today
Mr. Duck’s Air Quality Score
Good air today for Matsuura, 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 Matsuura today is classified as Good. The primary pollutant identified is PM2.5, with a measured concentration of 0.0 µg/m³ based on five valid observations reported through OpenAQ.
Overall conditions meet the Good category criteria and no additional pollutants are highlighted at this time. 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
Matsuura’s open‑air quality feed currently 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 location at 松浦市志佐町浦免８１２－１, so the dataset represents one observation point rather than a city‑wide network.
The most recent readings were uploaded on 2026‑02‑10, with timestamps ranging from 21:00 to 22:00 UTC. Because every row falls into the “updated within three days” bucket, the data are fresh for all five pollutants. The numeric values show virtually no variation across the record set: NO is consistently recorded at 0.0 ppm (minimum, median and maximum all zero), PM2.5 remains at 0.0 µg/m³, and SO₂ also stays at 0.0 ppm. In contrast, the nitrogen species display tiny but non‑zero concentrations – NO₂ is fixed at 0.001 ppm and NOX at 0.002 ppm, with identical minimum, median and maximum values for each. Because there is only one row per pollutant, the interquartile spread (p10 to p90) mirrors these single‑value ranges.
Overall, the dataset offers a complete but highly limited snapshot: it covers all five target pollutants yet provides no spatial diversity beyond the lone station, and the recorded concentrations show no fluctuation over time. While the timestamps confirm that the information is up‑to‑date, the lack of multiple observations means that short‑term changes or neighborhood differences in Matsuura cannot be captured from this source alone.
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.” While this snapshot provides a current view of air quality in Matsuura, conditions can differ across neighborhoods and change throughout the day, so values may vary locally and over time.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 松浦市志佐町浦免８１２－１ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 松浦市志佐町浦免８１２－１ | no2 | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 松浦市志佐町浦免８１２－１ | nox | 0.002 | ppm | 2026-02-10 22:00 UTC |
| 松浦市志佐町浦免８１２－１ | pm25 | 0.0 | µg/m³ | 2026-02-10 21:00 UTC |
| 松浦市志佐町浦免８１２－１ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |