Air quality in Mons, Hainaut, Belgium today

Mr. Duck’s Air Quality Score

Good air today for Mons, Hainaut, Belgium

⚠️ 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 Mons today falls into the Good category according to OpenAQ data. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 value of 2.1695 and a PM10 value of 6.771, based on four valid observations.

These figures indicate that particulate concentrations are within the range associated with the Good classification for this location. 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 Mons 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)—all recorded at a single monitoring location (code 43N070). For each pollutant there is exactly one data row, so the coverage consists of six rows in total.

The most recent observations are fairly fresh for five of the pollutants: NO₂, O₃, PM10 and PM2.5 were all last updated on 2026‑02‑10 at 18:00 UTC, while CO was last refreshed on 2026‑01‑14 at 08:00 UTC, just over a month ago. In contrast, the SO₂ measurement is based on an old entry from 2017‑01‑06 at 09:00 UTC, indicating that this particular value may not reflect current conditions.

All six pollutants show a single recorded value with no variation across the dataset. CO is reported at 190.0 µg/m³, NO₂ at 27.5 µg/m³, O₃ at 44.5 µg/m³, PM10 at 6.771 µg/m³, PM2.5 at 2.1695 µg/m³ and SO₂ at 1.0 µg/m³; each of these values is simultaneously the minimum, median and maximum for its series. Because there is only one measurement per pollutant, the data set does not provide a range or spread that would illustrate fluctuations over time.

Overall, the dataset offers a complete list of key air‑quality constituents for Mons but is limited to a single monitoring point and, for SO₂, relies on very old information. Consequently, while the most recent values give a snapshot of current conditions for most pollutants, city‑wide variations in space and time are not captured by this collection.

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 for Mons reflects four valid measurements and was refreshed recently, being updated within three days (last update 2026‑02‑10T18:00:00+00:00). These readings provide a current snapshot of the city’s air quality, but conditions can differ across neighborhoods and change throughout the day. Use this information as a general guide rather than a precise, location‑specific forecast.

OpenAQ station rows