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

Mr. Duck’s Air Quality Score

Good air today for Lille, 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 Lille today is classified as Good. The primary pollutant measured is PM2.5, with a recorded concentration of 3.35 µg/m³ based on five valid observations from OpenAQ.

Overall conditions meet the criteria for a Good rating, and the data reflect the current state without additional context. 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

Lille’s open‑air quality feed draws on eleven recent rows of data collected at three monitoring sites across the city and its surroundings. The dataset includes measurements for nitrogen monoxide (NO), nitrogen dioxide (NO₂), fine particulate matter (PM₁, PM₂·₅, PM₁₀), relative humidity, temperature, and particle concentration expressed as UM003 (particles per cubic centimetre). For each pollutant a single most recent value is shown, but the overall picture varies in timeliness. The freshest records – for PM₂·₅, PM₁, relative humidity, temperature and UM003 – were all logged on 2026‑02‑10 at 18:00 UTC from the Hellemmes station, giving a very current snapshot of those parameters. In contrast, NO and NO₂ are only available from data last updated on 2024‑01‑12 at 10:00 UTC (FR11007), while PM₁₀ comes from an even older entry dated 2018‑04‑25 at 00:00 UTC (FR11025). This mix of recent and legacy timestamps means that the most up‑to‑date information is limited to a subset of pollutants.

The numeric spread also differs across the measured species. PM₂·₅ values range from a low of about 3.35 µg/m³ to a high of 17.1 µg/m³, with a median near 7 µg/m³, indicating modest variability in fine particulate concentrations during the latest sampling period. NO₂ shows a broader range, from roughly 6.8 µg/m³ up to 44.8 µg/m³, and its median sits around 25.8 µg/m³, suggesting more pronounced fluctuations in nitrogen dioxide levels across the city. By contrast, NO is reported as a single constant value of 21.5 µg/m³, and PM₁₀ appears only as one figure (9.1 µg/m³), reflecting limited recent coverage for those pollutants.

Overall, Lille’s air‑quality snapshot offers current data for several key variables but relies on older measurements for others, so conditions can differ by location and time of day. Users should keep in mind that the dataset’s breadth is modest – three stations feeding eleven rows – and that the freshest observations are confined to a handful of parameters measured at Hellemmes.

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 dataset for Lille includes five valid measurements and is refreshed regularly, having been updated within three days (last update: 2026‑02‑10T18:00:00+00:00). These values represent a snapshot of current conditions but air quality can differ across neighborhoods and change throughout the day, so individual experiences may vary from the reported figures.

OpenAQ station rows