Air quality in Samut Sakhon, Thailand today

Mr. Duck’s Air Quality Score

Unhealthy air today for Samut Sakhon, 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 in Samut Sakhon is currently classified as Unhealthy. The primary pollutant identified is PM2.5, with a measured concentration of 82.13482131276812 µg/m³ based on six valid observations reported through OpenAQ.

This assessment reflects the latest available data 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 Samut Sakhon data set contains eight measured pollutants – nitrogen dioxide (NO₂), ozone (O₃), particulate matter of three size fractions (PM₁, PM₂·₅ and PM₁₀), sulfur dioxide (SO₂), relative humidity and temperature. The information comes from 12 individual rows that belong to three monitoring stations, so each station contributes a handful of observations rather than a dense network.

The most recent measurements are all from the same day, 2026‑02‑10 22:00 UTC, for PM₂·₅ (63.8 µg/m³ at Samut Sakhon Wittayalai School), PM₁ (49.29 µg/m³), relative humidity (58.99 %) and temperature (27.5 °C) recorded at the โรงเรียนบ้านสันดาบ site. These four variables are therefore up‑to‑date within the past week. By contrast, the latest NO₂ reading dates back to 2022‑05‑07 14:00 UTC, O₃ to 2023‑05‑29 05:00 UTC, SO₂ to 2025‑05‑15 00:00 UTC and PM₁₀ to 2025‑01‑13 23:00 UTC, indicating that half of the pollutants have not been refreshed for more than a year.

Across the available data the range of values varies considerably. PM₂·₅ spans from a low of 9.4 µg/m³ up to a high of 82.1 µg/m³, with a median of 63.8 µg/m³, while PM₁₀ ranges between 51.0 and 134.4 µg/m³, median 92.7 µg/m³ – both showing a broad spread that suggests noticeable differences across locations or times. The single‑point readings for NO₂ (0.076 ppm), O₃ (0.02 ppm) and SO₂ (0.002 ppm) are constant because only one recent value is available for each, limiting any assessment of variability.

Overall the dataset provides a snapshot of current conditions for four key variables but relies heavily on older records for the remaining pollutants. Consequently, while city‑wide air quality can differ by neighbourhood and moment, the present coverage offers limited insight into how those differences evolve over time.

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 dataset for Samut Sakhon includes six valid measurements and is updated within 3 days, with the most recent data recorded on 2026‑02‑10 at 22:00 UTC. This snapshot reflects conditions at the time of collection; air quality can vary by location and time within the city, so values may differ across neighborhoods or later in the day.

OpenAQ station rows