Air quality in Saint-Laurent-Blangy, Hauts-de-France, France today

Mr. Duck’s Air Quality Score

Moderate air today for Saint-Laurent-Blangy, 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 Saint‑Laurent‑Blangy is currently classified as Moderate. The primary pollutant identified for today is PM2.5, fine particulate matter measured in the atmosphere.

Measurements from four valid monitoring stations show a PM2.5 concentration of 17.0 µg/m³ and a PM10 level of 15.5 µg/m³. These values are reported through OpenAQ data feeds. 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 Saint‑Laurent‑Blangy air‑quality record draws on seven measurement rows that together capture carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm and smaller (PM10), fine particulate matter 2.5 µm (PM2.5) and sulphur dioxide (SO₂). For each pollutant a single value is currently stored, reflecting the most recent observation that the OpenAQ feed has supplied.

The freshest data points are from early February 2026: NO₂ measured at 11.2 µg/m³, O₃ at 73.4 µg/m³, PM10 at 15.5 µg/m³ and PM2.5 at 17.0 µg/m³ (all recorded on 2026‑02‑10 or 2026‑02‑09). By contrast the CO reading dates back to 2017‑04‑28 (127.5 µg/m³) and SO₂ to 2017‑04‑26 (0.9 µg/m³), while NO was last updated on 2024‑03‑11 (5.3 µg/m³). This mix shows that the dataset includes both very recent measurements for several key pollutants and older entries for others, so coverage is uneven across the suite of gases and particles.

All seven values are identical to their respective minima, medians and maxima, indicating that each pollutant currently has only a single recorded observation rather than a distribution. Consequently there is no spread to describe variability; the data simply reflect one point in time per substance. Because many rows rely on older timestamps, the picture of air quality in Saint‑Laurent‑Blangy may not capture short‑term fluctuations that occur throughout the day or across different neighborhoods. Users should keep in mind that conditions can differ by location and moment, and the available figures represent a snapshot rather than a continuous record.

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 for Saint‑Laurent‑Blangy are based on four valid measurements and have been refreshed recently, with the latest update recorded on 2026‑02‑10 at 15:00 UTC (updated within 3 days). This snapshot reflects conditions measured at specific monitoring points; air quality can vary across different neighbourhoods and times of day within the city.

OpenAQ station rows