Air quality in Chom Phon Chao Phraya, Thailand today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Chom Phon Chao Phraya, 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 Chom Phon Chao Phraya is classified as USG today.

The primary pollutant measured is PM2.5, with a recorded concentration of 45.0 µg/m³ based on one valid observation reported through 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 OpenAQ feed for Chom Phon Chao Phraya contains data from ten measurement rows collected at two monitoring stations. All eight pollutants tracked in the dataset are present: nitrogen dioxide (NO2), ozone (O3), particulate matter of three size fractions (PM1, PM2.5, PM10), sulfur dioxide (SO2), relative humidity and temperature. The most recent observation across the whole set is a PM2.5 value recorded on 2026-02-10 22:00 UTC; every other pollutant’s latest reading is older, ranging from early 2023 for NO2 to mid‑2025 for PM1, relative humidity and temperature.

PM2.5 values span from 45.0 to 57.13 µg/m³ with a median of about 51.07 µg/m³, indicating a fairly tight distribution around the central tendency. By contrast, the other pollutants each have a single reported figure: NO2 is consistently recorded as 0.0 ppm, O3 and SO2 both appear at 0.016 ppm, PM10 is fixed at 23.0 µg/m³, and PM1 sits at roughly 36.04 µg/m³. Relative humidity and temperature are also single‑point entries, measured at 44.45 % and 29.35 °C respectively.

Because most of the data points are dated several months or years ago, the snapshot does not capture current day‑to‑day variability in air quality for this city. The limited number of stations (two) further restricts spatial coverage, so conditions can differ across neighborhoods and times that are not reflected in these records. Users should keep in mind that while the dataset provides a concrete baseline for each pollutant, it represents a relatively static picture rather than an up‑to‑date overview.

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 brief view of current conditions; however, air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in Chom Phon Chao Phraya.

OpenAQ station rows