Air quality in Cergy, France today
Mr. Duck’s Air Quality Score
Good air today for Cergy, France
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Cergy is classified as Good today. The primary pollutant identified is PM10, which represents coarser particulate matter measured in the atmosphere.
According to OpenAQ data, the latest PM10 concentration is 24.7 µg/m³ based on two valid measurements. This indicates that the current level of this pollutant falls within the range associated with a Good air‑quality rating. 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 data for Cergy currently includes measurements of ozone (O₃) and particulate matter 10 µm or less (PM10). Both pollutants are reported from a single monitoring location identified as CERGY‑PONTOISE, so the dataset consists of two rows – one for each substance. The most recent ozone reading was recorded on 2026‑02‑10 at 15:00 UTC and the latest PM10 value on 2026‑02‑09 at 03:00 UTC, meaning the data are refreshed within three days for O₃ and within seven days for PM10.
Because only one station contributes each pollutant, the reported values show no variation: ozone is consistently 73.2 µg/m³ (minimum, median and maximum all identical) and PM10 remains at a steady 24.7 µg/m³ across its single observation. This uniformity indicates that the dataset does not capture spatial differences within the city or temporal fluctuations beyond the latest timestamps.
Overall, the coverage is limited to one measurement point per pollutant, and while the timestamps are relatively recent, the lack of multiple stations means the figures represent a narrow snapshot rather than a comprehensive picture of air quality across Cergy. Users should keep in mind that conditions can differ by neighbourhood and time of day, even though the current data provide an up‑to‑date reference for these two specific pollutants at the listed location.
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 Cergy is based on two valid measurements and was refreshed recently, with the latest update recorded at 2026‑02‑10T15:00:00+00:00 (Updated within 3 days). These values represent a snapshot from the monitoring stations at that time; air quality can differ across neighborhoods and change throughout the day, so conditions you experience may vary from what is displayed here.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| CERGY-PONTOISE | o3 | 73.2 | µg/m³ | 2026-02-10 15:00 UTC |
| CERGY-PONTOISE | pm10 | 24.7 | µg/m³ | 2026-02-09 03:00 UTC |