Air quality in Kuji, Japan today
Mr. Duck’s Air Quality Score
Good air today for Kuji, 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 Kuji is currently classified as Good. The main pollutant identified is PM2.5, with a reported reference value of 0.0 µg/m³ based on five valid measurements.
Data are shown via OpenAQ and reflect the latest available readings for this location. 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 Kuji air‑quality record consists of a single monitoring site that supplies five separate pollutant measurements, giving a total of five data rows. All five rows are classified as “last 3 days,” meaning the most recent observations were recorded between 2026‑02‑10 21:00 and 22:00 UTC, so the dataset is very current for this city.
The pollutants reported are nitrogen monoxide (NO), nitrogen dioxide (NO₂), total oxides of nitrogen (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). For each compound the observed values are identical across the whole reporting period: NO, PM2.5 and SO₂ all read 0.0 in their respective units, while NO₂ and NOX both register a constant 0.002 ppm. Because every row shows the same minimum, median and maximum, there is no measurable spread – the range for each pollutant collapses to a single point.
The data therefore give a complete but very narrow snapshot of Kuji’s air quality at one location on a single day. While the timestamps are fresh, the lack of variation in measured concentrations and the reliance on only one monitoring station mean that conditions elsewhere in the city or over longer periods could differ. Users should keep in mind that this set captures just one moment in time from a single point source rather than a broader spatial or temporal picture.
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 Kuji reflects five valid measurements and is marked as Updated within 3 days, with the latest reading recorded at 2026‑02‑10T22:00:00+00:00. This snapshot provides a current view of ambient conditions but air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 久慈市八日町１－１ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 久慈市八日町１－１ | no2 | 0.002 | ppm | 2026-02-10 22:00 UTC |
| 久慈市八日町１－１ | nox | 0.002 | ppm | 2026-02-10 22:00 UTC |
| 久慈市八日町１－１ | pm25 | 0.0 | µg/m³ | 2026-02-10 21:00 UTC |
| 久慈市八日町１－１ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |