Air quality in Denain, Hauts-de-France, France today

Mr. Duck’s Air Quality Score

Good air today for Denain, Hauts-de-France, France

⚠️ 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 Denain today is classified as Good. The primary pollutant measured is PM2.5 (fine particles). According to the latest data, the PM2.5 concentration is 4.5 µg/m³ and the accompanying PM10 level is 7.2 µg/m³, based on four valid measurements reported through OpenAQ.

These values reflect the current monitoring snapshot 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 Denain air‑quality record draws on nine data rows collected at two monitoring sites, all located at the Villars station. For this city the dataset includes measurements of nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM10), nitric oxide (NO), particulate matter ≤2.5 µm (PM2.5) and sulphur dioxide (SO₂). The most recent updates are from 2026‑02‑10 15:00 UTC for NO₂, O₃, PM10, PM2.5 and the older NO reading dates back to 2024‑03‑11 09:00 UTC, while the SO₂ value is from 2017‑07‑18 20:00 UTC. This means that four of the six pollutants have fresh data (within three days), one is a little over two years old and another is more than eight years old.

Across the recent measurements the observed range for each pollutant is narrow. NO₂ varies between 8.3 and 8.78 µg/m³ with a median of 8.54 µg/m³; O₃ spans 51.9 to 68.7 µg/m³, median 60.3 µg/m³; PM10 runs from 7.2 to 10.4 µg/m³, median 8.8 µg/m³. The single‑value entries for NO (2.7 µg/m³), PM2.5 (4.5 µg/m³) and SO₂ (3.33 µg/m³) show no spread because only one recent row is available for each. Consequently, the dataset provides a fairly consistent picture for the three most frequently updated pollutants, but it offers limited insight into NO, PM2.5 and especially SO₂ due to their older or singular records.

Overall, Denain’s air‑quality data are concentrated at a single location, giving good temporal resolution for NO₂, O₃ and PM10 while leaving gaps for the other measured species. Users should keep in mind that conditions can differ across neighborhoods and that the older entries do not reflect current levels for those pollutants.

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 Denain reflects four valid measurements and was updated within three days, with the most recent reading recorded on 2026‑02‑10 at 15:00 UTC. This snapshot provides a current view of air quality across the city, but conditions can differ by specific neighbourhoods and change throughout the day. Use this information as a general reference rather than a precise real‑time indicator.

OpenAQ station rows