Air quality in Kawatana, Japan today

Mr. Duck’s Air Quality Score

Good air today for Kawatana, Japan

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Kawatana is classified as Good today. The primary pollutant identified is PM2.5 (fine particles).

Measurements from five valid observations show a PM2.5 concentration of 1.0 µg/m³, which aligns with the reference value used for assessment. No PM10 data are available for this period. 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 Kawatana contains five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO2), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO2). All of them come from a single monitoring location in the town of 下組郷字開３０４－５, giving the city one reporting row for each pollutant. The most recent reading for every compound was recorded on 2026‑02‑10 at 22:00 UTC, which falls within the “updated within three days” freshness window, so the data are currently very fresh.

Across the five pollutants the observed values show no variation in this snapshot: NO is consistently 0.0 ppm, NO2 stays at 0.002 ppm, NOX at 0.004 ppm, PM2.5 at 1.0 µg/m³ and SO2 again at 0.0 ppm. For each pollutant the minimum, median and maximum are identical, indicating that only a single measurement is available rather than a distribution over time or space. Consequently there is no spread to describe; the reported figures represent the exact current concentration at the lone site.

Because the coverage relies on just one sensor, spatial representation of air quality across Kawatana is limited. While the timestamps are up‑to‑date, the lack of multiple stations means conditions elsewhere in the town may differ from those captured here. Users should keep in mind that this snapshot provides a precise but narrowly scoped view of the city’s atmospheric composition 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 data shown for Kawatana reflects five valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 22:00 UTC, meaning it is updated within three days. This snapshot provides a current view of ambient conditions, but air quality can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.

OpenAQ station rows