Air quality in Minamata, Japan today
Mr. Duck’s Air Quality Score
Good air today for Minamata, 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 Minamata today is classified as Good. The primary pollutant measured is PM2.5, with a reported concentration of 9.0 µg/m³ based on five valid observations from OpenAQ data.
Overall conditions meet the criteria for the Good category, and no other pollutants are highlighted in the current 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 Minamata includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). Each pollutant is represented by a single monitoring row, giving the city a total of five data rows from one station located at 水俣市八幡町３丁目２－７. All readings were last updated on 2026-02-10 22:00 UTC, which falls within three days of today (2026‑02‑13), so the information is relatively fresh across the board.
The values show a very narrow spread because each pollutant has only one recorded measurement. NO, SO₂ and the nitrogen oxides share identical readings of 0.0 ppm for NO and SO₂, and 0.002 ppm for both NO₂ and NOX. The median, minimum and maximum are all the same for these gases, indicating no observed variability in this snapshot. PM2.5 is reported at 9.0 µg/m³, again with identical min, median and max values, so the dataset does not capture any range or fluctuation for particulate matter either.
Because there is only one monitoring location, coverage across Minamata is limited to that specific address. The uniform timestamps mean no older or unknown‑age data are present, but the lack of multiple stations or repeated measurements prevents assessment of spatial differences or temporal trends within the city. Users should keep in mind that air quality can differ by neighborhood and time of day, even though the current dataset provides a single, up‑to‑date snapshot for each listed pollutant.
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 within three days, with the latest update recorded at 2026‑02‑10 22:00 UTC. These values represent a snapshot of conditions across Minamata and may not capture short‑term fluctuations or micro‑scale differences; air quality can vary by location and time within the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 水俣市八幡町３丁目２－７ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 水俣市八幡町３丁目２－７ | no2 | 0.002 | ppm | 2026-02-10 22:00 UTC |
| 水俣市八幡町３丁目２－７ | nox | 0.002 | ppm | 2026-02-10 22:00 UTC |
| 水俣市八幡町３丁目２－７ | pm25 | 9.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 水俣市八幡町３丁目２－７ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |