Air quality in Chaloem Phra Kiat, Thailand today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Chaloem Phra Kiat, Thailand

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

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 Chaloem Phra Kiat is classified as USG. The primary pollutant measured is PM2.5, with a reported concentration of 50.3 µg/m³. In addition, the PM10 level is recorded at 174.0 µg/m³ based on five valid observations from OpenAQ.

These values reflect the current monitoring results 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 air‑quality record for Chaloem Phra Kiat includes six measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM10), particulate matter 2.5 µm or less (PM2.5) and sulfur dioxide (SO₂). Data come from two monitoring stations, each contributing a row of observations, so the city’s coverage is limited to these two locations.

The most recent readings are fairly fresh for some gases but older for others. The latest CO value (3.0 ppm at Na Phralan Police Station) was recorded on 2023‑12‑01 02:00 UTC, and the newest O₃ measurement (0.008 ppm at the same station) dates to 2023‑11‑06 23:00 UTC, both over a year old. In contrast, NO₂, PM10, PM2.5 and SO₂ all have updates within the past week, with timestamps on 2026‑02‑10 (12:00 UTC for NO₂ and SO₂, 22:00 UTC for PM10 and PM2.5). This mix shows that while particulate and some gas data are current, carbon monoxide and ozone information may not reflect present conditions.

Across the pollutants, observed ranges vary considerably. CO spans from a low of 0.3 ppm to a high of 3.0 ppm, with a median around 1.65 ppm; NO₂ stays between 0.014 and 0.021 ppm, median 0.0175 ppm; O₃ ranges from 0.004 to 0.008 ppm, median 0.006 ppm. Particulate matter shows broader variability: PM10 values run from 41 µg/m³ up to 174 µg/m³ (median 107.5 µg/m³), while PM2.5 varies between 18.5 and 50.3 µg/m³ (median 34.4 µg/m³). SO₂ is the least variable, recorded between 0.003 and 0.007 ppm with a median of 0.005 ppm.

Because only two stations feed the dataset, spatial differences within Chaloem Phra Kiat are not captured, and older timestamps for CO and O₃ mean those pollutants could be different today. Users should keep in mind that conditions can change by location and time, and the available data provide a snapshot rather than a complete picture of the city’s air quality.

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 reflect five valid measurements and are Updated within 3 days, with the latest reading recorded on 2026‑02‑10T22:00:00+00:00. This snapshot provides a brief view of current conditions; however, air quality can vary by location and time across Chaloem Phra Kiat, so values may differ elsewhere in the city at any given moment.

OpenAQ station rows