Air quality in Komae, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Komae, 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 Komae is currently classified as Moderate. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 14.0 µg/m³, based on five valid observations reported through OpenAQ.

This assessment reflects the latest available data for today. 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 Komae data set contains five measured pollutants—nitric oxide (NO), nitrogen dioxide (NO2), combined nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO2)—all reported from a single monitoring location at 狛江市中和泉３－４－１０. Because only one station contributes rows, the coverage is limited to that point in the city rather than a network of sites.

All five pollutants were last updated on 2026-02-10 22:00 UTC, so the freshest readings are just a few days old. The values are remarkably consistent across the record: NO registers at 0.001 ppm, NO2 at 0.022 ppm, NOX at 0.023 ppm and SO2 at 0.0 ppm, each with identical minimum, median and maximum figures, indicating no observed variation in this short window. PM2.5 shows a single value of 14.0 µg/m³, also without spread. Because the dataset contains only one row per pollutant, there is no range to describe beyond these fixed points.

With a station count of one, the data give a snapshot rather than a city‑wide picture; conditions elsewhere in Komae may differ from those at the monitoring site. The uniform timestamps and lack of historical depth mean trends cannot be inferred, and any assessment of air quality should consider that the available measurements represent a very narrow spatial and temporal slice.

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 five valid measurements and is updated within 3 days, with the latest reading recorded at 2026‑02‑10T22:00:00+00:00. These values provide a recent snapshot of air quality in Komae, but conditions can differ across neighborhoods and change throughout the day, so this information represents only a brief moment in time.

OpenAQ station rows