Air quality in Kawajima, Japan today
Mr. Duck’s Air Quality Score
Moderate air today for Kawajima, 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 Kawajima is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles), with a reference concentration of 12.0 µg/m³ based on four valid measurements collected by OpenAQ.
These data reflect the present conditions without implying any trend or cause. 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 Kawajima air‑quality feed contains four measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX) and fine particulate matter (PM2.5). All four appear in the dataset as a single observation each, giving a total of four rows of data. Each row comes from the same monitoring location at 比企郡川島町かわじま２－１９ and was last updated on 2026‑02‑10 22:00 UTC, which falls within the “updated within three days” freshness bucket.
Because there is only one recent reading per pollutant, the reported values show no variation: NO is recorded at 0.003 ppm, NO₂ at 0.020 ppm, NOX at 0.023 ppm and PM2.5 at 12.0 µg/m³, with the minimum, median and maximum all identical for each metric. This uniformity means the dataset does not capture any range or spread of concentrations over time or across different sites in Kawajima; it simply reflects a snapshot from one sensor at a single point in time.
The data therefore provides a very limited picture of air quality in the town. While the timestamps are current, the coverage is narrow – only one monitoring station contributes all four pollutants, and there are no older or additional rows to show how conditions might change throughout the day or across the wider area. Users should keep in mind that actual concentrations can differ by location and moment, and the present dataset represents just this specific measurement rather than a comprehensive view of Kawajima’s air quality.
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 data for Kawajima are based on four valid measurements and were refreshed recently, with the latest update recorded at 2026‑02‑10T22:00:00+00:00 (updated within 3 days). This snapshot reflects conditions at the time of measurement; air quality can vary across different neighborhoods and times of day within the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 比企郡川島町かわじま２－１９ | no | 0.003 | ppm | 2026-02-10 22:00 UTC |
| 比企郡川島町かわじま２－１９ | no2 | 0.02 | ppm | 2026-02-10 22:00 UTC |
| 比企郡川島町かわじま２－１９ | nox | 0.023 | ppm | 2026-02-10 22:00 UTC |
| 比企郡川島町かわじま２－１９ | pm25 | 12.0 | µg/m³ | 2026-02-10 22:00 UTC |