Air quality in Aizuwakamatsu, Japan today
Mr. Duck’s Air Quality Score
Good air today for Aizuwakamatsu, Japan
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality today in Aizuwakamatsu is classified as Good. The primary pollutant identified is PM2.5 (fine particles).
Measurements show a PM2.5 concentration of 7.0 µg/m³ based on five valid observations reported via OpenAQ. 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 air‑quality record for Aizuwakamatsu 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 values come from a single monitoring site located at 会津若松市西栄町４－６１, so the dataset represents one station’s observations rather than a city‑wide network.
The most recent data point for each pollutant was recorded on 2026-02-10 22:00 UTC and is flagged as having been updated within three days, meaning the information is fresh by the standards of this platform. Because there is only one row per pollutant, the reported statistics are identical across minimum, median, maximum and the 10th‑90th percentile values. NO registers at 0.001 ppm, NO₂ at 0.014 ppm, NOX at 0.015 ppm, SO₂ also at 0.001 ppm, while PM2.5 measures 7.0 µg/m³. The lack of variation indicates that the dataset does not capture any temporal spread or spatial diversity for Aizuwakamatsu; it simply reflects a single snapshot from one location.
With five rows in total and all timestamps clustered on the same recent date, the coverage is limited both in terms of geographic distribution and historical depth. Consequently, while the numbers give an exact picture of conditions at that specific site and moment, they do not convey how air quality might differ across other neighborhoods or change over longer periods. Users should keep in mind that city‑wide conditions can vary by place and time, and this dataset provides only a narrow view of Aizuwakamatsu’s current atmospheric composition.
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 are based on five valid measurements and have been updated within 3 days, with the most recent reading recorded at 2026‑02‑10T22:00:00+00:00. This snapshot reflects conditions at a single point in time; air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in Aizuwakamatsu.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 会津若松市西栄町４－６１ | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 会津若松市西栄町４－６１ | no2 | 0.014 | ppm | 2026-02-10 22:00 UTC |
| 会津若松市西栄町４－６１ | nox | 0.015 | ppm | 2026-02-10 22:00 UTC |
| 会津若松市西栄町４－６１ | pm25 | 7.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 会津若松市西栄町４－６１ | so2 | 0.001 | ppm | 2026-02-10 22:00 UTC |