Air quality in Avilés, Asturias, Spain today

Mr. Duck’s Air Quality Score

Good air today for Avilés, Asturias, Spain

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality today in Avilés is classified as Good. The primary pollutant identified is PM2.5 (fine particles).

Measurements show a PM2.5 reference value of 4.0 µg/m³ and a PM10 reference value of 12.0 µg/m³, based on 17 valid observations recorded by OpenAQ. 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 Avilés air‑quality record draws on 32 measurement rows collected at five monitoring sites, covering the seven key pollutants tracked by OpenAQ: carbon monoxide (CO), nitrogen oxides (NO and NO₂), ozone (O₃), particulate matter ≤10 µm (PM₁₀) and ≤2.5 µm (PM₂.₅), and sulfur dioxide (SO₂). For most substances the latest data were uploaded on 2026‑02‑09 at 15:00 UTC, meaning the information is fresh within the past week; the exception is NO, whose most recent entry dates back to 2024‑01‑31 00:00 UTC and is therefore classified as old.

Across the dataset the observed concentrations span a wide interval for each pollutant. CO values range from 230 µg/m³ up to 270 µg/m³ with a median of 250 µg/m³, while NO₂ varies between 4 µg/m³ and 31 µg/m³ (median 14 µg/m³). Ozone shows the highest typical levels, from 21 µg/m³ to 62 µg/m³ with a median of 55 µg/m³. Particulate matter is comparatively low: PM₁₀ runs from 0 µg/m³ to 40 µg/m³ (median 11.5 µg/m³) and PM₂.₅ from 4 µg/m³ to 16 µg/m³ (median 6 µg/m³). Sulfur dioxide is the least variable, recorded between 1 µg/m³ and 10 µg/m³ with a median of 1.5 µg/m³.

The coverage is uneven: while CO, NO₂, O₃, PM₁₀, PM₂.₅ and SO₂ all have recent observations from multiple sites, the nitrogen monoxide (NO) series relies on a single older record, limiting insight into its current behaviour. Consequently, the overall picture of Avilés’ air quality is based largely on recent data for most pollutants but contains a notable gap for NO, reminding users that conditions can differ across neighbourhoods and over time.

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 Avilés reflects 17 valid measurements and is marked as Updated within 3 days, with the most recent reading recorded on 2026‑02‑09 at 15:00 UTC. This snapshot provides a current view of city‑wide air quality but note that conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in these aggregate figures.

OpenAQ station rows