Air quality in Vila Real, Portugal today
Mr. Duck’s Air Quality Score
Good air today for Vila Real, Portugal
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Vila Real is currently classified as Good. The primary pollutant identified is PM2.5. Measured concentrations show PM2.5 at 2.8 µg/m³ and PM10 at 2.3 µg/m³. These values are based on four valid measurements. Data is shown via OpenAQ.
The four recent observations meet the quality criteria applied for reporting today. The PM2.5 concentration of 2.8 µg/m³ corresponds to the reference value used for this assessment, and the PM10 level of 2.3 µg/m³ matches its reference benchmark. Together, these measurements provide a current snapshot of particulate matter levels in the city. 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 Vila Real contains five measured pollutants – nitrogen dioxide, ozone, particulate matter 10, particulate matter 2.5 and sulphur dioxide – all reported from a single monitoring location identified as Douro Norte. Each pollutant appears as a separate row, so the total number of rows equals the number of pollutants, five in this case. The most recent timestamp belongs to nitrogen dioxide, recorded on 2026‑02‑10 03:00 UTC, while the other four measurements were last updated on 2026‑01‑24 04:00 UTC for ozone, PM10 and PM2.5, and on 2020‑10‑16 11:00 UTC for sulphur dioxide. According to the freshness breakdown, only one of the five rows falls within the last thirty days; the remaining four are classified as old, indicating that recent coverage is limited.
All five pollutants are represented by a single value, with identical minimum, median and maximum figures for each. Nitrogen dioxide registers 6.3 µg/m³, ozone 84.0 µg/m³, PM10 2.3 µg/m³, PM2.5 2.8 µg/m³ and sulphur dioxide 17.0 µg/m³. Because there is no spread in the data, the reported numbers reflect isolated observations rather than a range of conditions. The concentration values span from the low‑level 2.3 µg/m³ for PM10 up to 84.0 µg/m³ for ozone, illustrating the variability in magnitude across different pollutants.
With only one monitoring site contributing data, the spatial representation for Vila Real is narrow, and the predominance of older timestamps means that the dataset does not capture current fluctuations throughout the city. Consequently, while the available figures give a snapshot of each pollutant at a specific moment, they should be understood as limited in both temporal freshness and geographic coverage, and actual air‑quality conditions may differ across neighborhoods and times.
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 Vila Real includes four valid measurements and is updated within 30 days, with the latest refresh on 2026-02-10 at 03:00 UTC. These values represent a snapshot of the city's air quality at the time of collection. Conditions can differ across neighborhoods and change throughout the day, so the displayed figures may not reflect current or localized levels.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Douro Norte | no2 | 6.3 | µg/m³ | 2026-02-10 03:00 UTC |
| Douro Norte | o3 | 84.0 | µg/m³ | 2026-01-24 04:00 UTC |
| Douro Norte | pm10 | 2.3 | µg/m³ | 2026-01-24 04:00 UTC |
| Douro Norte | pm25 | 2.8 | µg/m³ | 2026-01-24 04:00 UTC |
| Douro Norte | so2 | 17.0 | µg/m³ | 2020-10-16 11:00 UTC |