Air quality in Kurume, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Kurume, 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 Kurume is currently classified as Moderate. The main pollutant identified is PM2.5, with a measured concentration of 15.0 µg/m³ based on five valid observations reported through OpenAQ.

These readings reflect the present conditions without implying any trend or cause. 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 data set for Kurume includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). In total there are seven recent rows of observations drawn from three monitoring stations across the city, giving a modest but useful snapshot of air quality at specific points.

The freshest measurements were recorded on 2026‑02‑10 at 22:00 UTC for PM2.5, NO, NO₂ and NOX, each coming from a single station in the 城南町 area (PM2.5 also has an additional reading from 三潤町玉満). The median PM2.5 concentration is 9.0 µg/m³, with values ranging from a low of 3.0 µg/m³ to a high of 15.0 µg/m³; the 10th and 90th percentiles sit at 4.2 µg/m³ and 13.8 µg/m³ respectively, indicating modest variability across the limited sample. All three nitrogen‑related gases show identical single‑point values – NO at 0.001 ppm, NO₂ at 0.014 ppm and NOX at 0.015 ppm – each measured at the same time and location, so no spread can be reported for these compounds.

Sulfur dioxide is represented by a much older record dated 2025‑07‑31 at 07:00 UTC, also from 城南町, with a reading of 0.0 ppm. Because this is the only SO₂ entry and it falls into an “old data” category, coverage for this pollutant is sparse compared with the others. Overall, while PM2.5 offers a small range of recent values, the nitrogen gases are captured at a single moment, and SO₂ lacks current observations; therefore the dataset provides a limited but concrete picture of air quality that can differ across neighborhoods and over time.

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 are based on five valid measurements and were refreshed recently, with the latest update recorded on 2026‑02‑10 at 22:00 UTC; the dataset is marked as Updated within 3 days. While this provides a reliable snapshot of Kurume’s current air quality, conditions can differ across neighborhoods and change throughout the day, so values may vary locally and over time.

OpenAQ station rows