Air quality in Lum Din, Thailand today
Mr. Duck’s Air Quality Score
Unhealthy for sensitive groups for Lum Din, 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 Lum Din is classified as USG. The primary pollutant measured is PM2.5, with a reported concentration of 48.0 µg/m³. Only one valid measurement contributes to this assessment and the data are displayed via OpenAQ.
No additional pollutants have been reported for this period. 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 air‑quality record for Lum Din includes four measured pollutants – carbon monoxide (CO), ozone (O₃), particulate matter up to 10 µm (PM10) and fine particulate matter (PM2.5). All data come from a single monitoring station operated by the Environmental Office 8 in Ratchaburi, so the dataset consists of one row per pollutant.
The most recent observation is for PM2.5, recorded on 2026‑02‑10 22:00 UTC and reported as 48.0 µg/m³. The other three pollutants have older timestamps: CO was last logged on 2021‑09‑25 12:00 UTC (0.52 ppm), O₃ on 2022‑02‑17 22:00 UTC (0.064 ppm) and PM10 on 2022‑03‑28 00:00 UTC (37.0 µg/m³). Because three of the four values are older than a year, the overall freshness of the dataset is limited, with only one pollutant updated within the past week.
Each pollutant shows a single recorded value, so the minimum, median and maximum are identical. CO, O₃ and PM10 all have a constant reading of 0.52 ppm, 0.064 ppm and 37.0 µg/m³ respectively, while PM2.5 is consistently reported at 48.0 µg/m³. This lack of variation indicates that the station has provided only one measurement per pollutant rather than a time series.
In summary, Lum Din’s public air‑quality page draws from a very small data pool – one monitoring site and a single recent value for PM2.5, with the remaining pollutants based on older entries. Consequently, the figures represent a snapshot rather than ongoing coverage, and conditions in different parts of the city or at other times may differ from these isolated measurements.
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 a single valid measurement and is Updated within 3 days, with the latest reading recorded on 2026‑02‑10 at 22:00 UTC. This snapshot provides a momentary view of air quality in Lum Din; conditions can differ across neighborhoods and change throughout the day, so the values displayed may not represent the entire city at any given time.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Environmental Office 8 ratchaburi | co | 0.52 | ppm | 2021-09-25 12:00 UTC |
| Environmental Office 8 ratchaburi | o3 | 0.064 | ppm | 2022-02-17 22:00 UTC |
| Environmental Office 8 ratchaburi | pm10 | 37.0 | µg/m³ | 2022-03-28 00:00 UTC |
| Environmental Office 8 ratchaburi | pm25 | 48.0 | µg/m³ | 2026-02-10 22:00 UTC |