Air quality in Komatsu, Japan today
Mr. Duck’s Air Quality Score
Good air today for Komatsu, 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 Komatsu is classified as Good today. The primary pollutant identified is PM2.5, with the latest readings indicating a concentration of 1.0 µg/m³. Five valid measurements contributed to this assessment and are displayed through OpenAQ.
Overall conditions reflect the Good category based on the available data, and the reported PM2.5 value aligns with the reference measurement provided. 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 Komatsu currently draws from a single monitoring location (小松市園町ホ８２) and contains five rows of recent measurements. All five pollutant readings were last updated on 2026‑02‑10 22:00 UTC, which falls within the “updated within three days” freshness window, so the information reflects conditions from just a few days ago.
The available pollutants are nitrogen monoxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), fine particulate matter (PM2.5) and sulfur dioxide (SO2). For NO, NO₂ and NOX the recorded values are identical across the dataset: each shows a single measurement of 0.005 ppm, with no variation between minimum, median or maximum. PM2.5 is reported as 1.0 µg/m³, again without any spread. Both NO and SO2 register at 0.0 ppm, indicating that at the time of sampling these gases were not detected above the instrument’s reporting threshold.
Because there is only one sensor contributing data, the coverage across the city is limited to the conditions at that specific site; other neighborhoods may experience different concentrations. The numeric range for each pollutant is effectively a single point, so the dataset does not reveal any temporal or spatial variability within Komatsu. Nonetheless, the freshness of all five rows suggests the current snapshot is up‑to‑date, even though the lack of multiple stations means broader city‑wide patterns cannot be assessed from this source alone.
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 was updated within three days, with the latest refresh recorded at 2026‑02‑10 22:00 UTC. These values provide a recent snapshot of Komatsu’s air quality but represent only limited sampling points; conditions can differ across neighborhoods and change throughout the day. Consequently, the figures should be viewed as an overview rather than a precise, location‑specific reading.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 小松市園町ホ８２ | no | 0.0 | ppm | 2026-02-10 22:00 UTC |
| 小松市園町ホ８２ | no2 | 0.005 | ppm | 2026-02-10 22:00 UTC |
| 小松市園町ホ８２ | nox | 0.005 | ppm | 2026-02-10 22:00 UTC |
| 小松市園町ホ８２ | pm25 | 1.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 小松市園町ホ８２ | so2 | 0.0 | ppm | 2026-02-10 22:00 UTC |