Air quality in Minamiyamashiro, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Minamiyamashiro, 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 Minamiyamashiro is currently classified as Moderate. The primary pollutant measured is PM2.5. The latest reading shows a PM2.5 concentration of 14.0 µg/m³. Only one valid measurement is available, and it forms the basis for this assessment. The data are provided through OpenAQ, which aggregates observations from participating monitoring stations.

PM10 data are not reported for this location, so the classification relies exclusively on the PM2.5 value. This moderate rating reflects the level defined by the assessment framework without implying any specific health outcome. The single measurement was recorded during the most recent monitoring period. 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 current station data listed for this city is focused on particulate matter (PM). Only one monitoring row is available for Minamiyamashiro, and it reports a single pollutant, PM2.5, measured in micrograms per cubic metre. The most recent reading was recorded on 2026-02-02 02:00 UTC, which places the data well within the last 30 days, indicating that the timestamp is fresh. No other pollutants or additional stations are present in the dataset for this location.

With a single observation point, the reported PM2.5 concentration is 14.0 µg/m³, and the statistical summary shows identical minimum, median, and maximum values, meaning there is no observed spread in the measurements. Because coverage consists of just one row, the data cannot reflect spatial differences across the village or capture temporal fluctuations beyond the single timestamp. Consequently, while the figure is recent, it represents a very limited snapshot of air quality for Minamiyamashiro and should be interpreted as such.

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 Minamiyamashiro reflects a single valid measurement and was updated within 30 days, with the most recent reading recorded on 2026‑02‑02 at 02:00 UTC. This snapshot provides a brief view of current conditions, but air quality can vary by location and time within the city, so values may differ elsewhere or later.

OpenAQ station rows