Air quality in Luxembourg, Luxembourg today

Mr. Duck’s Air Quality Score

Good air today for Luxembourg, Luxembourg

⚠️ 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 Luxembourg today is classified as Good. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 5.0 µg/m³ and a PM10 reference value of 6.0 µg/m³, based on ten valid observations collected via OpenAQ.

Overall conditions meet the criteria for the Good category according to the latest assessment. 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

Luxembourg’s OpenAQ feed currently provides data for seven pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM10), particulate matter ≤ 2.5 µm (PM2.5) and sulphur dioxide (SO₂). The dataset comprises 16 individual rows drawn from four monitoring stations, so each pollutant is not necessarily represented at every site.

The most recent measurements are generally fresh: CO, NO₂, PM10, PM2.5 and O₃ all have observations dated 2026‑02‑10 18:00 UTC, meaning they were recorded within the last week. By contrast, NO data are older, with the latest entry from 2024‑03‑11 12:00 UTC, and SO₂ is even less current, last updated on 2024‑12‑13 10:00 UTC. This mix of timestamps shows that while most pollutants have near‑real‑time coverage, a couple of species rely on data that are several months old.

Across the available records the concentration ranges are modest. NO₂ values span from 18.0 to 31.6 µg/m³ with a median of about 25 µg/m³; CO varies between 200 and 280 µg/m³, centred around 240 µg/m³; PM10 is low, ranging 4–6 µg/m³ with a typical value near 5 µg/m³; PM2.5 runs from 2.5 to 5 µg/m³, median roughly 3.8 µg/m³; O₃ is constant at 48 µg/m³ in the recent sample; NO sits between 4.2 and 5.9 µg/m³, median about 5.7 µg/m³; SO₂ shows a single recorded value of 4.1 µg/m³. The spread is narrow for most pollutants, indicating limited variability within the sampled moments.

Because only four stations contribute data, spatial coverage is uneven: some locations (e.g., Luxembourg Pl. Winston Churchill) provide recent readings for several gases and particles, while others (Bonnevoie) supply the freshest CO, O₃ and SO₂ values but lack recent NO measurements. Consequently, city‑wide conditions can differ by place and time, and the older entries for NO and SO₂ should be interpreted with that limitation in mind.

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 current dataset for Luxembourg includes ten valid measurements and is updated within three days, with the latest values recorded at 2026‑02‑10T18:00:00+00:00. These figures represent a snapshot of conditions across the city; air quality can differ by specific location and time of day, so individual experiences may vary from the reported averages.

OpenAQ station rows