Air quality in Dieppe, Normandy, France today

Mr. Duck’s Air Quality Score

Good air today for Dieppe, 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 Dieppe today is classified as Good. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 1.9 and a PM10 reference value of 2.6, based on six valid observations collected via OpenAQ.

Overall conditions meet the criteria for a Good rating according to the current 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 Dieppe air‑quality dataset contains five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM10) and particulate matter 2.5 µm or less (PM2.5). The data come from seven individual rows that are grouped into two monitoring stations, one located near the Dieppe Golf course and another close to a major road (“prox‑auto”). Freshness varies across the pollutants: the most recent PM10, PM2.5, NO₂ and O₃ values were all recorded on 2026‑02‑10 at 15:00 UTC, while the lone NO measurement dates back to 2024‑03‑11 at 07:00 UTC. Thus four of the five pollutants have updates within the last three days, but nitrogen monoxide is over a year old.

Across the recent observations, PM10 values range from 2.6 to 8.8 µg/m³ with a median of 5.7 µg/m³; PM2.5 spans 1.9 to 9.3 µg/m³ with a median of 5.6 µg/m³, indicating that typical concentrations sit near the middle of their respective spreads. Ozone is reported as a single value of 70.0 µg/m³, while nitrogen dioxide also appears as a single recent reading of 23.3 µg/m³. The older NO measurement is a solitary 33.1 µg/m³.

Because the dataset relies on only two stations, spatial coverage is limited and conditions can differ across Dieppe depending on location and time of day. The presence of several recent PM readings provides a snapshot of current particulate levels, but the outdated NO data highlights gaps that may affect a complete picture of nitrogen monoxide trends in the city.

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 Dieppe are based on six valid measurements and were updated within 3 days, with the latest refresh recorded at 2026‑02‑10T15:00:00+00:00. This snapshot reflects conditions measured at specific monitoring points; air quality can vary across different neighbourhoods and times of day within the city, so values may not represent every location or moment precisely.

OpenAQ station rows