Air quality in Funabashi, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Funabashi, 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 Funabashi is currently classified as Moderate. The primary pollutant identified is PM2.5, fine particulate matter, with a measured concentration of 18.0 µg/m³ based on fifteen valid observations reported through OpenAQ.

Data indicate that the level of PM2.5 meets the reference value provided for this category. 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 Funabashi includes six measured pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM₂.5) and sulfur dioxide (SO₂). Data come from three monitoring stations, providing a total of fifteen recent rows. All the latest readings were recorded on 2026-02-10 at 22:00 UTC, which meets the “updated within three days” freshness criterion for every pollutant.

Across the city the observed values show a fairly narrow spread for most gases. NO ranges from a low of 0.001 ppm to a high of 0.009 ppm with a median of 0.008 ppm; NO₂ varies between 0.010 and 0.035 ppm, median 0.027 ppm; NOX spans 0.011–0.043 ppm, median 0.036 ppm. CO is reported as a single value of 0.2 ppm at the Hinode‑1‑16 site. SO₂ is consistently low, recorded between 0.001 and 0.002 ppm with a median of 0.0015 ppm. PM₂.5 shows the greatest variability, ranging from 3.0 to 18.0 µg/m³, median 7.0 µg/m³, with the 10th percentile at about 3.8 µg/m³ and the 90th percentile near 15.8 µg/m³.

The coverage is uneven: while NO, NO₂, NOX, PM₂.5 and SO₂ all have three recent rows each, CO has only one recent entry. This means that for carbon monoxide the city’s spatial picture is limited to a single point, whereas the other pollutants benefit from broader sampling across the three stations. Because the data are all fresh but come from a modest number of locations, they capture current conditions at those sites but may not reflect micro‑scale variations elsewhere in Funabashi.

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 15 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 across Funabashi, but conditions can differ by specific neighbourhoods and times of day, so local variations may not be captured in this summary.

OpenAQ station rows