Air quality in Fussa, Japan today

Mr. Duck’s Air Quality Score

Good air today for Fussa, 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 Fussa today is classified as Good. The primary pollutant identified is PM2.5, with a measured concentration of 6.0 µg/m³. Data are based on six valid observations collected through OpenAQ.

Overall conditions meet the criteria for a Good rating, and no additional pollutants exceed reporting thresholds. 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 Fussa contains a single monitoring location, identified as 福生市本町５, which supplies readings for six pollutants: carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All of the measurements were recorded at the same moment – 2026‑02‑10 22:00 UTC – and each entry is flagged as having been updated within the past three days, indicating that the most recent data are fresh.

Across the six pollutants the observed values show no variation in this snapshot. CO registers a constant 0.2 ppm, NO 0.001 ppm, NO₂ 0.014 ppm, NOX 0.015 ppm, PM2.5 6.0 µg/m³ and SO₂ 0.0 ppm; the minimum, median and maximum for each are identical, and the 10th‑percentile and 90th‑percentile values match those same figures. This uniformity means that, for the current reporting period, there is no spread to describe typical versus extreme concentrations at this site.

Because only one station contributes data, coverage of the city’s air quality landscape is limited to a single point source. While the timestamp freshness is good, the lack of additional monitoring locations means spatial variations within Fussa cannot be captured in this dataset. Consequently, any assessment of overall city conditions should consider that measurements may differ elsewhere and at other times, even though the available data are up‑to‑date for the recorded location.

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 reflects six valid measurements and is updated within 3 days, with the most recent reading recorded at 2026‑02‑10T22:00:00+00:00. These values provide a current snapshot of air quality in Fussa, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured by this summary.

OpenAQ station rows