Air quality in Gonfreville-l'Orcher, Normandy, France today

Mr. Duck’s Air Quality Score

Good air today for Gonfreville-l'Orcher, Normandy, 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 Gonfreville-l'Orcher today is classified as Good. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 2.0 and a PM10 reference value of 4.1, based on five 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

The air‑quality record for Gonfreville-l’Orcher is built from a single monitoring station that supplies six measured pollutants: carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), particulate matter 10 µm or less (PM₁₀), particulate matter 2.5 µm or less (PM₂.₅) and sulphur dioxide (SO₂). Because there is only one row of data, the coverage is limited to that location; no additional stations contribute observations for this city.

All six pollutants have recent values from the same day except NO, whose most recent reading dates back to 2024‑03‑11 07:00 UTC. The CO, NO₂, PM₁₀, PM₂.₅ and SO₂ measurements were all last updated on 2026‑02‑10 15:00 UTC, meaning the newest timestamps are less than two days old. For each of these five pollutants the dataset contains a single value that serves as the minimum, median and maximum: CO is recorded at 135.0 µg/m³, NO₂ at 9.6 µg/m³, PM₁₀ at 4.1 µg/m³, PM₂.₅ at 2.0 µg/m³ and SO₂ at 1.6 µg/m³. The lack of variation (identical min‑med‑max) indicates that only one measurement is currently stored for each parameter.

The presence of an older NO reading highlights uneven temporal coverage across pollutants; while five gases have fresh data, the nitrogen oxide record is over a year old. Consequently, any snapshot of Gonfreville-l’Orcher’s air quality reflects conditions at a single point in time and may not capture short‑term fluctuations that occur elsewhere in the city. Users should keep in mind that with only one monitoring location and limited historical depth, the dataset provides a narrow view of local atmospheric composition.

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 Gonfreville‑l'Orcher is based on five valid measurements and was refreshed within the past three days, with the latest update recorded at 2026‑02‑10T15:00:00+00:00. This snapshot reflects conditions at the time of sampling; air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.

OpenAQ station rows