Air quality in Itabashi, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Itabashi, 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 Itabashi is currently classified as Moderate. The primary pollutant identified is PM2.5, which refers to fine particulate matter measured in the atmosphere.

According to OpenAQ data, the latest reading shows a PM2.5 concentration of 15.0 µg/m³ based on nine valid measurements. This level reflects the reference value used for this pollutant. 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 Itabashi data set pulls in measurements from OpenAQ for five pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX) and fine particulate matter (PM2.5). In total the feed contains nine individual rows, but they come from only two monitoring locations; most pollutants are recorded at both sites while CO appears in just a single row.

All of the latest values were uploaded on 2026-02-10 at 22:00 UTC, which means the data is current within the last three days. For NO the observed concentrations range from 0.002 ppm up to 0.019 ppm with a median of about 0.0105 ppm; NO₂ is tightly clustered between 0.027 and 0.029 ppm (median 0.028 ppm); NOX shows a broader spread from 0.029 to 0.048 ppm (median 0.0385 ppm). PM2.5 values sit in a narrow band of 14.0–15.0 µg/m³, median 14.5 µg/m³. CO is reported as a single constant value of 0.4 ppm at the one site where it is measured.

Because most pollutants have two recent entries while CO has only one, the coverage across substances is uneven. Nevertheless, the timestamps indicate that the available readings are all fresh, giving a snapshot of current air quality conditions in Itabashi. Users should keep in mind that with only two monitoring points, spatial variations within the city may not be fully captured.

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 nine valid measurements and is updated within 3 days, with the latest refresh recorded at 2026‑02‑10T22:00:00+00:00. This snapshot provides a current view of air quality in Itabashi, but conditions can differ across neighborhoods and change throughout the day, so values may not represent every location or moment within the city.

OpenAQ station rows