Air quality in Fujimi, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Fujimi, 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 Fujimi today falls into the Moderate category. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 12.0 µg/m³, based on eight valid observations collected via OpenAQ.

Overall conditions reflect the moderate rating with PM2.5 as the dominant factor and no additional pollutants highlighted. 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

Fujimi’s open‑air quality feed currently provides data for four pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX) and fine particulate matter (PM2.5). The dataset consists of eight individual rows drawn from two monitoring sites, all recorded at the same recent timestamp of 2026-02-10 22:00 UTC, which meets the “updated within three days” freshness criterion for each pollutant.

The measured concentrations show a relatively narrow spread. For NO the values range from a low of 0.001 ppm to a high of 0.013 ppm, with a median near 0.007 ppm; NO₂ varies between 0.017 ppm and 0.026 ppm, centering around 0.022 ppm; NOX spans 0.018 ppm up to 0.039 ppm, with a typical value of about 0.028 ppm; PM2.5 levels are recorded from 12 µg/m³ to 18 µg/m³, median 15 µg/m³. The 10th‑percentile figures (NO 0.0022 ppm, NO₂ 0.0179 ppm, NOX 0.0201 ppm, PM2.5 12.6 µg/m³) and 90th‑percentile values (NO 0.0118 ppm, NO₂ 0.0251 ppm, NOX 0.0369 ppm, PM2.5 17.4 µg/m³) illustrate that most readings cluster tightly around the medians, indicating limited variability across the sampled moments.

Because only two stations contribute data, spatial coverage within Fujimi is modest; conditions can differ in other neighborhoods not represented here. Nevertheless, all four pollutants are reported with recent measurements, and the dataset contains no rows flagged as old or unknown. Users should keep in mind that the snapshot reflects a single point in time (2026‑02‑10 22:00 UTC) and that day‑to‑day fluctuations may occur outside the captured range.

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 Fujimi reflects eight valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 22:00 UTC; it is considered “Updated within 3 days.” This snapshot provides a current view of air quality but conditions can differ across neighborhoods and change throughout the day, so values may vary locally and over time.

OpenAQ station rows