Air quality in Aki, Japan today
Mr. Duck’s Air Quality Score
Good air today for Aki, 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 Aki is classified as Good today. The primary pollutant identified is PM2.5, with a measured concentration of 1.0 µg/m³ based on five valid observations.
No data are available for PM10, and the assessment reflects only the current set of measurements. 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 Aki includes measurements of five key pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All five readings come from a single monitoring site at 安芸市西浜95-1, so the city’s coverage is limited to one location rather than a network of stations.
Each pollutant shows an identical freshness profile: the most recent observation for every compound was recorded on 2026‑02‑10 22:00 UTC, which falls within the “updated within 3 days” window. This means the data are current as of today (2026‑02‑13) and there are no older or unknown timestamps in the set.
The values themselves are extremely uniform. For NO the concentration is a single point at 0.001 ppm; for NO₂ it is 0.003 ppm; for NOX it is 0.004 ppm; for SO₂ it is also 0.001 ppm; and PM2.5 registers exactly 1.0 µg/m³. In each case the minimum, median, maximum, 10th percentile and 90th percentile are identical, indicating no observed variation across the limited sample period.
Because only one monitoring point contributes data, the figures represent conditions at that specific address and may not capture spatial differences elsewhere in Aki. Nonetheless, the information is up‑to‑date and provides a clear snapshot of each listed pollutant at the time of measurement.
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 current dataset for Aki includes five valid measurements and is marked as Updated within 3 days, with the latest values recorded at 2026‑02‑10T22:00:00+00:00. These figures represent a snapshot in time; air quality can differ across neighborhoods and change throughout the day, so conditions you experience may not exactly match the reported values.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 安芸市西浜95-1 | no | 0.001 | ppm | 2026-02-10 22:00 UTC |
| 安芸市西浜95-1 | no2 | 0.003 | ppm | 2026-02-10 22:00 UTC |
| 安芸市西浜95-1 | nox | 0.004 | ppm | 2026-02-10 22:00 UTC |
| 安芸市西浜95-1 | pm25 | 1.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 安芸市西浜95-1 | so2 | 0.001 | ppm | 2026-02-10 22:00 UTC |