Air quality in Mueang Samut Songkhram, Thailand today

Mr. Duck’s Air Quality Score

Unhealthy air today for Mueang Samut Songkhram, 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 Mueang Samut Songkhram is classified as Unhealthy. The primary pollutant identified is PM2.5 (fine particles).

Measurements show a PM2.5 concentration of 58.4 µg/m³ and a PM10 level of 86.0 µg/m³, based on three valid observations recorded by OpenAQ. 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 Mueang Samut Songkhram contains a single monitoring location, the Samut Songkhram Health Office, which supplies readings for six common air‑quality pollutants: carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM₁₀), particulate matter ≤2.5 µm (PM₂.₅) and sulfur dioxide (SO₂). Because there is only one row of data, the coverage across the city is limited to this point.

The most recent measurements are from early February 2026 for O₃, PM₁₀ and PM₂.₅, recorded on 2026‑02‑10 22:00 UTC. CO and SO₂ were last updated in January 2024 (01:00 UTC) and May 2024 (11:00 UTC) respectively, while NO₂ has not been refreshed since March 2025 (07:00 UTC). This mix of timestamps shows that half of the pollutants have data less than a week old, but the other three are several months to over two years out‑of‑date.

All six pollutants report a single value at this site, so there is no observed range or variability. CO is measured at 1.5 ppm, NO₂ at 0.0 ppm, O₃ at 0.01 ppm, PM₁₀ at 86.0 µg/m³, PM₂.₅ at 58.4 µg/m³ and SO₂ at 0.025 ppm. Because each parameter has only one recorded figure, the median equals the minimum and maximum for every pollutant. The data therefore give a snapshot rather than a distribution of conditions across time or space in Mueang Samut Songkhram.

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 three valid measurements and is updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 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 local variations may not be captured in these figures.

OpenAQ station rows