Air quality in Thanon Yai, Thailand today
Mr. Duck’s Air Quality Score
Moderate air today for Thanon Yai, Thailand
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality today in Thanon Yai is classified as Moderate. The primary pollutant identified for the current assessment is PM2.5 (fine particles).
Measurements from six valid observations show a PM2.5 reference value of 31.0 and a PM10 reference value of 59.0. These figures are presented through OpenAQ data. 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 Thanon Yai air‑quality record includes six common pollutants – carbon monoxide, nitrogen dioxide, ozone, PM10, PM2.5 and sulphur dioxide – all reported from a single monitoring site, the Meteorological Station Lopburi. Six data rows are present in total, one for each pollutant, and every row was last refreshed on 2026‑02‑10 22:00 UTC, placing the whole set comfortably within the “updated within 7 days” freshness category.
Because only one station contributes, each pollutant shows a single value that also serves as its minimum, median and maximum. Carbon monoxide registers at 0.8 ppm, nitrogen dioxide at 0.019 ppm, ozone at 0.009 ppm, sulphur dioxide at 0.001 ppm, PM10 at 59.0 µg/m³ and PM2.5 at 31.0 µg/m³. The lack of spread (the 10th‑percentile and 90th‑percentile values match the median) indicates that no variability can be assessed from this dataset; it reflects a snapshot rather than a range of conditions.
With just one monitoring location, the coverage for Thanon Yai is limited to the immediate vicinity of the Lopburi station. While the timestamps are recent, the single‑point nature means the data cannot capture spatial differences across the city or temporal fluctuations beyond the moment recorded. Users should keep in mind that air quality can change throughout the day and between neighborhoods, so this snapshot provides a useful but narrow view of current conditions.
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 Thanon Yai is based on six valid measurements and was refreshed within the past three days, with the most recent update recorded at 2026‑02‑10T22:00:00+00:00. While this provides a current snapshot of air quality across the city, conditions can differ by specific neighbourhoods and times of day, so local variations may not be fully captured in these figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Meteorological Station Lopburi | co | 0.8 | ppm | 2026-02-10 22:00 UTC |
| Meteorological Station Lopburi | no2 | 0.019 | ppm | 2026-02-10 22:00 UTC |
| Meteorological Station Lopburi | o3 | 0.009 | ppm | 2026-02-10 22:00 UTC |
| Meteorological Station Lopburi | pm10 | 59.0 | µg/m³ | 2026-02-10 22:00 UTC |
| Meteorological Station Lopburi | pm25 | 31.0 | µg/m³ | 2026-02-10 22:00 UTC |
| Meteorological Station Lopburi | so2 | 0.001 | ppm | 2026-02-10 22:00 UTC |