Air quality in Reims, Grand Est, France today

Mr. Duck’s Air Quality Score

Good air today for Reims, Grand Est, 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 Reims today is classified as Good. The primary pollutant identified is PM2.5 (fine particles).

Measurements recorded by OpenAQ show a PM2.5 reference value of 3.8 and a PM10 reference value of 12.2, based on eight valid observations. 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

Reims’ air‑quality feed draws from ten measurement rows collected at two monitoring sites. The dataset includes six key pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM₁₀), particulate matter 2.5 µm or less (PM₂.₅) and sulfur dioxide (SO₂). For each pollutant the most recent reading comes from the Jean d’Aulan station, with timestamps ranging from early March 2024 for NO to mid‑February 2026 for the other compounds; all of these are presented in UTC as “YYYY‑MM‑DD HH:MM”.

The recorded values show a fairly narrow spread for most species. NO varies between 12.5 and 51.3 µg/m³, with a median of 31.9 µg/m³, while NO₂ stays within 5.3 to 17.9 µg/m³ (median 11.6). PM₁₀ is tightly clustered around 12 µg/m³ (minimum 11.9, maximum 12.2, median 12.05) and PM₂.₅ ranges from 3.8 to 5.7 µg/m³ (median 4.75). Ozone and sulfur dioxide each have a single reported value – 82.7 µg/m³ for O₃ and 1.8 µg/m³ for SO₂ – reflecting that only one recent measurement is available for those gases.

Two observations emerge from the numbers. First, the dataset contains more historical depth for NO (last updated 2024‑03‑11) than for the other pollutants, which were refreshed within the past three days of the latest pull in February 2026; this indicates that most compounds are being reported with very current data while NO still relies on an older entry. Second, the breadth of coverage is uneven: while particulate matter and nitrogen oxides have multiple rows showing a range of values, ozone and sulfur dioxide are represented by a single point each, limiting insight into their variability across the city. Consequently, while the available measurements give a snapshot of current conditions at Jean d’Aulan, spatial and temporal variations elsewhere in Reims may not be fully captured.

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 Reims reflects eight valid measurements and is updated within 3 days, with the latest values recorded on 2026‑02‑10 at 15:00 UTC. These figures provide a current snapshot of citywide air quality but note that conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in this overview.

OpenAQ station rows