Air quality in Kamiamakusa, Japan today

Mr. Duck’s Air Quality Score

Good air today for Kamiamakusa, 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 Kamiamakusa is classified as Good today. The primary pollutant identified is PM2.5 (fine particles).

Measurements show a PM2.5 concentration of 5.0 µg/m³, based on one valid observation recorded by OpenAQ. No PM10 value is available for this assessment. 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, and it reports PM2.5 concentrations measured in micrograms per cubic metre. The single reading shows a value of 5.0 µg/m³ recorded at the location 上天草市松島町合津4276-387, with the most recent timestamp being 2026-02-10 22:00 UTC. This measurement is the only one in the dataset, so the reported minimum, median and maximum are all identical at 5.0 µg/m³, and the 10th‑percentile and 90th‑percentile values match as well.

Because the lone entry falls within the last three days, the data can be described as fresh, but coverage is extremely limited—there are no additional stations or historic rows for Kamiamakusa. Consequently, while the available figure gives a snapshot of PM2.5 at one specific site and time, it does not capture spatial or temporal variation across the city. Users should keep in mind that conditions may differ elsewhere or change after the recorded moment.

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 Kamiamakusa is based on a single valid measurement and was updated within 3 days, with the latest reading recorded at 2026‑02‑10T22:00:00+00:00. This snapshot reflects conditions at that specific time and location; air quality can vary across different parts of the city and change throughout the day.

OpenAQ station rows