Air quality in Ishioka, Japan today
Mr. Duck’s Air Quality Score
Moderate air today for Ishioka, 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 Ishioka is currently classified as Moderate. The primary pollutant identified for today is PM2.5, fine particulate matter that is being monitored.
Measurements show a PM2.5 concentration of 18.0 µg/m³ based on four valid observations recorded by OpenAQ. No PM10 reference value is available for this 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 data set for Ishioka includes measurements of four pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX) and fine particulate matter (PM2.5). All four are recorded at a single monitoring site located at 石岡市杉並２－１－２, so the city’s coverage consists of one station providing one row of data for each pollutant, giving a total of four rows.
Each pollutant shows an identical timestamp: the most recent reading was taken on 2026‑02‑10 at 22:00 UTC and is flagged as having been updated within three days. Because every value comes from the same moment, there is no spread over time; the minimum, median and maximum are all the same for each metric. NO registers a concentration of 0.006 ppm, NO₂ 0.018 ppm, NOX 0.024 ppm and PM2.5 measures 18.0 µg/m³. The lack of variation means that the dataset captures only a single snapshot rather than a range of conditions.
With just one monitoring location and a single recent timestamp, the data give a very limited picture of air quality across Ishioka. While the measurements are fresh, they do not reflect spatial differences within the city or changes throughout the day or week. Users should keep in mind that actual conditions can differ by neighborhood and time, and additional observations would be needed to describe broader patterns.
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 Ishioka is based on four valid measurements and was updated within 3 days, with the latest refresh recorded at 2026‑02‑10T22:00:00+00:00. This snapshot reflects conditions at a specific time and place; 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 |
|---|---|---|---|---|
| 石岡市杉並２－１－２ | no | 0.006 | ppm | 2026-02-10 22:00 UTC |
| 石岡市杉並２－１－２ | no2 | 0.018 | ppm | 2026-02-10 22:00 UTC |
| 石岡市杉並２－１－２ | nox | 0.024 | ppm | 2026-02-10 22:00 UTC |
| 石岡市杉並２－１－２ | pm25 | 18.0 | µg/m³ | 2026-02-10 22:00 UTC |