Air quality in Edogawa, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Edogawa, 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 Edogawa is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles), with a measured concentration of 20.0 µg/m³. Data are based on 18 valid measurements collected through OpenAQ.

Overall, the assessment reflects the latest available readings for this location. 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 Edogawa air‑quality feed 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 18 recent observations recorded at four monitoring sites across the ward, giving a modest spatial snapshot of conditions on any given day.

All six pollutants have been updated within the last three days, with the most recent timestamp for each being 2026‑02‑10 22:00 UTC. CO and SO₂ are reported from a single station in the Kakukotsu neighbourhood, both showing a constant value of 0.4 ppm for CO and 0.0 ppm for SO₂ across the latest reading. The other four gases – NO, NO₂, NOX and PM2.5 – come from three stations clustered around Minami‑Kasai, where the newest values are 0.006 ppm (NO), 0.035 ppm (NO₂), 0.041 ppm (NOX) and 5.0 µg/m³ (PM2.5).

The dataset reveals a relatively narrow spread for the nitrogen oxides: NO ranges from 0.002 to 0.006 ppm, NO₂ from 0.026 to 0.035 ppm and NOX from 0.028 to 0.041 ppm, with median values clustered near the lower end of each range. PM2.5 shows a broader distribution, varying between 5 and 20 µg/m³ and a median of 16 µg/m³, indicating that particulate concentrations can differ noticeably across the limited monitoring points. Because CO and SO₂ are captured at only one location, their city‑wide representativeness is limited, while the nitrogen oxide measurements benefit from slightly broader coverage but still reflect just a few sites. Consequently, while the data are fresh, they provide only a partial picture of air quality in Edogawa and conditions may differ in other neighbourhoods or at later times.

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 Edogawa reflects 18 valid measurements and is Updated within 3 days, with the latest values recorded at 2026‑02‑10T22:00:00+00:00. This snapshot provides a current view of ambient air quality but note that conditions can differ across neighborhoods and change throughout the day, so individual experiences may vary from the reported figures.

OpenAQ station rows