Air quality in Kobayashi, Japan today
Mr. Duck’s Air Quality Score
Good air today for Kobayashi, 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 Kobayashi today is classified as Good. The primary pollutant identified is PM2.5, with a measured concentration of 2.0 µg/m³ based on two valid observations reported through OpenAQ.
These values reflect the current monitoring snapshot for the city. 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 Kobayashi contains measurements from a single monitoring location (小林市小林市堤字金鳥居３０２０の１３). Two pollutants are reported: fine particulate matter (PM2.5) and sulfur dioxide (SO₂). Both variables have recent observations, with the latest timestamp recorded on 2026‑02‑10 at 22:00 UTC, which falls within the “updated within three days” freshness category.
For PM2.5 the only value observed is 2.0 µg/m³; the minimum, median, and maximum are all identical, indicating no variation across the available records. The same pattern holds for SO₂, where every reading equals 0.001 ppm, again with matching minimum, median and maximum. Because there is just one monitoring row, the data provide a snapshot rather than a range of conditions across different parts of the city or over time.
The coverage is limited to this single site, so spatial variability within Kobayashi cannot be assessed from the current set. Nevertheless, the timestamps show that both pollutants have been measured very recently, and there are no older or unknown‑age entries in the file. Users should keep in mind that air quality can differ by location and moment, and the present figures represent only what was recorded at this specific point on 2026‑02‑10.
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 Kobayashi reflects two valid measurements and was updated within 3 days, with the latest reading recorded at 2026‑02‑10 22:00 UTC. This snapshot provides a brief view of current conditions; however, air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| 小林市小林市堤字金鳥居３０２０の１３ | pm25 | 2.0 | µg/m³ | 2026-02-10 22:00 UTC |
| 小林市小林市堤字金鳥居３０２０の１３ | so2 | 0.001 | ppm | 2026-02-10 22:00 UTC |