Air quality in Santurtzi, Autonomous Community of the Basque Country, Spain today
Mr. Duck’s Air Quality Score
Good air today for Santurtzi, Autonomous Community of the Basque Country, Spain
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Santurtzi today is classified as Good. The primary pollutant identified is PM2.5, with a reference concentration of 3.0 µg/m³. For comparison, the reference concentration for PM10 is 2.0 µg/m³, indicating that fine particles are the dominant factor in the current rating.
This rating is based on five valid measurements collected and displayed through OpenAQ. Each of the five observations contributes equally to the overall assessment, providing a snapshot of ambient conditions for the reporting period. The data set provides the basis for the Good category without indicating any exceedance of the reference values. 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 dataset for Santurtzi includes four measured pollutants – nitrogen dioxide (NO2), ozone (O3), particulate matter 10 µm or less (PM10) and particulate matter 2.5 µm or less (PM2.5). In total there are five data rows coming from two monitoring stations. The freshness profile shows that all five rows fall into the “last 30 days” bucket, with the most recent update recorded on 2026-02-09 15:00 UTC for each pollutant, so the information is relatively current.
NO2 is the only pollutant with multiple entries: two rows are available, giving a minimum observed value of 2 µg/m³, a median of 7 µg/m³ and a maximum of 12 µg/m³, with the 10th and 90th percentiles at 3 µg/m³ and 11 µg/m³ respectively. This spread indicates that NO2 levels vary across the two stations. By contrast, PM10, PM2.5 and O3 each have a single row, and their values are constant – 2 µg/m³ for PM10, 3 µg/m³ for PM2.5 and 58 µg/m³ for O3 – so no intra‑city variation can be observed for those metrics in the current dataset.
The overall coverage is modest: only two stations contribute data, and three of the four pollutants are represented by a single measurement point. While the timestamps are fresh, the limited number of stations means that the recorded values may not capture the full spatial diversity of air quality across Santurtzi. Users should keep in mind that conditions can differ by neighbourhood and time of day, and the available data provide a snapshot rather than a comprehensive picture.
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 dataset for Santurtzi includes five valid measurements and is updated within 30 days. The latest data were recorded on 2026-02-09 at 15:00 UTC. This snapshot reflects conditions at the time of measurement, but air quality can vary by location and time within the city. Users should consider these factors when interpreting the values presented.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| SANTURCE | no2 | 12.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SANTURCE | pm10 | 2.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SANTURCE | pm25 | 3.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SERANTES | no2 | 2.0 | µg/m³ | 2026-01-28 13:00 UTC |
| SERANTES | o3 | 58.0 | µg/m³ | 2026-02-09 15:00 UTC |