Air quality in Alcorcón, Community of Madrid, Spain today
Mr. Duck’s Air Quality Score
Good air today for Alcorcón, Community of Madrid, 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 Alcorcón today is classified as Good. The primary pollutant identified is PM2.5 (fine particles).
Measurements show a PM2.5 concentration of 4.0 µg/m³, based on six valid observations recorded by OpenAQ. No PM10 value is available for this 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 Alcorcón air‑quality record contains data for four measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃) and fine particulate matter (PM2.5). The dataset comprises eleven rows drawn from two monitoring stations, giving a modest spatial snapshot of the city’s atmosphere.
For NO₂ the most recent reading is 8 µg/m³ recorded at Alcorcón on 2026‑02‑09 15:00 UTC; values in the set range from a low of 8 µg/m³ to a high of 57 µg/m³, with a median of 8 µg/m³ and the 10th–90th percentile spread between 8 µg/m³ and 47.2 µg/m³. Ozone shows a single latest value of 62 µg/m³ (2026‑02‑09 15:00 UTC), which is also both the minimum and maximum in this sample, giving a median of 62 µg/m³ and a percentile range from 27.6 µg/m³ to 62 µg/m³. PM2.5’s newest measurement is 4 µg/m³ (2026‑02‑09 15:00 UTC); the observations vary from 2 µg/m³ up to 18 µg/m³, with a median of 4 µg/m³ and a 10th–90th percentile band of 2.4 µg/m³ to 15.2 µg/m³. In contrast, NO is represented only by older data from 2024‑02‑29 00:00 UTC, with values between 1 µg/m³ and 2 µg/m³, a median of 1.5 µg/m³ and percentiles spanning 1.1 µg/m³ to 1.9 µg/m³.
Overall the most recent updates for NO₂, O₃ and PM2.5 are all within the last week, indicating relatively fresh coverage for those three pollutants. The NO data, however, is two years old, highlighting an uneven temporal completeness across the set. With only eleven rows from two sites, the dataset offers a limited but current picture of Alcorcón’s air quality; conditions can differ in other neighbourhoods or at times not captured by these measurements.
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 Alcorcón reflects six valid measurements and is updated within 3 days, with the latest values recorded at 2026‑02‑09T15:00:00+00:00. This snapshot provides a current view of air quality across the city, but conditions can differ by neighbourhood and change throughout the day, so local variations may not be captured in these figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| ES1890A | no | 2.0 | µg/m³ | 2024-01-01 00:00 UTC |
| ES1890A | no2 | 57.0 | µg/m³ | 2024-01-29 19:00 UTC |
| ES1890A | o3 | 19.0 | µg/m³ | 2024-01-29 20:00 UTC |
| ES1890A | pm25 | 18.0 | µg/m³ | 2024-01-29 20:00 UTC |
| ALCORCÓN | no2 | 8.0 | µg/m³ | 2026-02-09 15:00 UTC |
| ALCORCÓN | o3 | 62.0 | µg/m³ | 2026-02-09 15:00 UTC |
| ALCORCÓN | pm25 | 4.0 | µg/m³ | 2026-02-09 15:00 UTC |
| ALCORCÓN | no | 1.0 | µg/m³ | 2024-02-29 00:00 UTC |
| ALCORCÓN | no2 | 8.0 | µg/m³ | 2026-02-09 13:00 UTC |
| ALCORCÓN | o3 | 62.0 | µg/m³ | 2026-02-09 13:00 UTC |
| ALCORCÓN | pm25 | 2.0 | µg/m³ | 2026-02-09 13:00 UTC |