Air quality in Terrassa, Catalonia, Spain today
Mr. Duck’s Air Quality Score
Good air today for Terrassa, Catalonia, 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 Terrassa today is classified as Good. The main pollutant identified is PM10, with a measured reference value of 4.0 µg/m³ based on seven valid observations recorded by OpenAQ.
Overall conditions meet the criteria for the Good category, reflecting low concentrations of the listed particulate matter. 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
Terrassa’s air‑quality feed currently draws from a single monitoring location – the “TERRASSA (PARE ALEGRE)” station – and provides measurements for seven pollutants: carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), ozone (O₃), particulate matter 10 µm or less (PM₁₀) and sulfur dioxide (SO₂). All of the latest readings were recorded at the same moment, 2026‑02‑10 03:00 UTC, so the dataset is uniformly fresh, with every pollutant flagged as “Updated within 7 days.” Because there is only one row of data, coverage across the city is limited to this point source and does not capture spatial variation.
The reported values are all single‑point observations: CO sits at 200.0 µg/m³, NO at 1.0 µg/m³, NO₂ at 6.0 µg/m³, NOX at 7.0 µg/m³, O₃ at 46.0 µg/m³, PM₁₀ at 4.0 µg/m³ and SO₂ at 1.0 µg/m³. For each pollutant the minimum, median and maximum are identical, indicating no recorded spread in this snapshot. Consequently, there is no statistical range to describe variability over time or across locations within Terrassa.
With only one monitoring site and a single timestamp for all pollutants, the dataset offers a very narrow view of current conditions. While the information is up‑to‑date, it cannot reflect differences that may exist elsewhere in the city or changes that have occurred since the last measurement. Users should keep in mind that air quality can differ by neighbourhood and over shorter intervals than those captured here.
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 current dataset for Terrassa includes seven valid measurements and is updated within three days, with the latest values recorded on 2026‑02‑10 at 03:00 UTC. These figures represent a brief snapshot of ambient conditions; air quality can differ across neighborhoods and change throughout the day, so local variations may not be captured in this summary.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| TERRASSA (PARE ALEGRE) | co | 200.0 | µg/m³ | 2026-02-10 03:00 UTC |
| TERRASSA (PARE ALEGRE) | no | 1.0 | µg/m³ | 2026-02-10 03:00 UTC |
| TERRASSA (PARE ALEGRE) | no2 | 6.0 | µg/m³ | 2026-02-10 03:00 UTC |
| TERRASSA (PARE ALEGRE) | nox | 7.0 | µg/m³ | 2026-02-10 03:00 UTC |
| TERRASSA (PARE ALEGRE) | o3 | 46.0 | µg/m³ | 2026-02-10 03:00 UTC |
| TERRASSA (PARE ALEGRE) | pm10 | 4.0 | µg/m³ | 2026-02-10 03:00 UTC |
| TERRASSA (PARE ALEGRE) | so2 | 1.0 | µg/m³ | 2026-02-10 03:00 UTC |