Air quality in Chikushino, Japan today
Mr. Duck’s Air Quality Score
Good air today for Chikushino, Japan
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Chikushino is classified as Good today. The primary pollutant identified is PM2.5, fine particulate matter measured by the monitoring network.
Five valid measurements were recorded, showing a PM2.5 concentration of 6.0 µg/m³. No PM10 reference value is available for this assessment. Data is shown via OpenAQ. 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 dataset for Chikushino includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). All of these are reported from a single monitoring location, identified as 太宰府市大字向佐野字迎田３９. Because there is only one station contributing rows, the coverage across the city is limited to that specific site; any spatial variation in air quality elsewhere in Chikushino will not be captured by this set.
The most recent readings for each pollutant were recorded on 2026-02-10 at 22:00 UTC, which places every value within a three‑day freshness window. NO is reported as a constant 0.0 ppm, while both NO₂ and NOX show identical values of 0.009 ppm. The PM2.5 measurement stands at 6.0 µg/m³, and SO₂ registers 0.001 ppm. For each pollutant the minimum, median and maximum are the same, indicating no observed variability in the data stream from this station during the reporting period. Consequently, the inter‑percentile range (10th to 90th percentile) is also zero for NO, NO₂, NOX and SO₂, and exactly 6.0 µg/m³ for PM2.5.
Given that only one monitoring point supplies all five pollutant rows, the dataset provides a very narrow snapshot of air quality at a single moment in time. While the timestamps are recent, the lack of multiple stations or temporal spread means the figures cannot represent broader city‑wide conditions or short‑term fluctuations. Users should keep in mind that actual concentrations may differ across neighborhoods and throughout the day, even though the current data set offers a clear, up‑to‑date picture for the specific location measured.
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 Chikushino reflects five valid measurements and was updated within three days, with the latest refresh recorded at 2026‑02‑10 22:00 UTC. This snapshot provides a recent view of ambient air quality but should be interpreted as an overview only; conditions can differ across neighborhoods and change throughout the day.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 太宰府市大字向佐野字迎田３９ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 太宰府市大字向佐野字迎田３９ | no2 | 0.009 | ppm | 2026-02-10 22:00 UTC |
| 太宰府市大字向佐野字迎田３９ | nox | 0.009 | ppm | 2026-02-10 22:00 UTC |
| 太宰府市大字向佐野字迎田３９ | pm25 | 6.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 太宰府市大字向佐野字迎田３９ | so2 | 0.001 | ppm | 2026-02-10 22:00 UTC |