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

Mr. Duck’s Air Quality Score

Good air today for Valenciennes, 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 Valenciennes today is classified as Good. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 value of 5.0 µg/m³ and a PM10 value of 11.3 µg/m³, based on four valid observations recorded through OpenAQ.

This assessment reflects the current monitoring data without speculation about causes or future conditions. 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 air‑quality dataset for Valenciennes includes measurements of carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM10) and particulate matter ≤ 2.5 µm (PM2.5). Data come from 15 individual rows collected at four monitoring stations across the city, so each pollutant is not necessarily represented at every location.

The most recent observations are from early February 2026 for NO₂, PM10 and PM2.5, all recorded on 2026‑02‑10 at 15:00 UTC, indicating that these three pollutants have fresh coverage within the last three days. By contrast, the latest NO reading dates to 2024‑03‑11 at 09:00 UTC, CO to 2017‑05‑30 at 10:00 UTC and O₃ to 2025‑01‑06 at 11:00 UTC, showing that half of the pollutants rely on older data. Across the recent rows, NO₂ values range from a low of 5.4 µg/m³ to a high of 28.4 µg/m³ with a median around 13.4 µg/m³; PM10 spans 9.2‑16.4 µg/m³ (median ≈ 10.3) and PM2.5 varies between 5.0‑12.95 µg/m³ (median ≈ 6.35). NO shows a broader spread from 9.4 to 38.8 µg/m³ (median ≈ 24.1), while CO is reported as a single value of 306.7 µg/m³ and O₃ likewise at a constant 62.2 µg/m³.

Overall, the dataset provides a fairly complete recent picture for the nitrogen oxides and particulate matter, but coverage for carbon monoxide and ozone is limited to older single‑point records. Because only four stations contribute data, conditions can differ between neighborhoods and over time, especially for pollutants with sparse or outdated measurements.

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 Valenciennes are based on four valid measurements and were updated within 3 days, with the latest refresh recorded at 2026‑02‑10T15:00:00+00:00. This snapshot reflects conditions at a specific time and place; air quality can vary across different neighborhoods and moments throughout the day.

OpenAQ station rows