Air quality in Alcalá de Guadaíra, Andalusia, Spain today

Mr. Duck’s Air Quality Score

Good air today for Alcalá de Guadaíra, Andalusia, 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 Alcalá de Guadaíra is classified as Good. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 value of 1.09 µg/m³ and a PM10 value of 30.08 µg/m³, based on eight valid observations recorded by OpenAQ.

These figures indicate that the current atmospheric conditions meet the Good category criteria for this location. 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 Alcalá de Guadaíra currently contains measurements from two monitoring stations and a total of ten recorded rows. All seven common pollutants are represented: carbon monoxide (CO), nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM₁₀), particulate matter ≤2.5 µm (PM₂.₅) and sulfur dioxide (SO₂). The most recent timestamps are from 2026‑02‑09 03:00 UTC for CO, NO₂, O₃, PM₁₀, SO₂ and PM₂.₅, indicating that the bulk of the data was updated within the last week. Only the NO measurement is older, recorded on 2024‑02‑21 00:00 UTC, which means that for this pollutant the information is about two years out of date.

Across the pollutants the observed values show a wide spread for some and extreme uniformity for others. NO₂ ranges from a low of 1.0 µg/m³ to a high of 22.0 µg/m³, with a median of 11.5 µg/m³ and the 10th‑percentile at 3.1 µg/m³, suggesting typical concentrations cluster around the middle of the range while occasional higher readings occur. PM₁₀ also varies, from 1.78 to 30.08 µg/m³, median 15.93 µg/m³ and a 90th‑percentile of 27.25 µg/m³, indicating that most recent samples include both low and relatively elevated particulate levels. In contrast, SO₂ is constant at 3.0 µg/m³ in every row, and CO appears as a single value of 657.0 µg/m³ across its sole recent record, reflecting either limited variability or sparse sampling for these gases.

The coverage is uneven: while NO₂, PM₁₀ and O₃ have multiple recent entries, the dataset provides only one recent point each for CO, NO, SO₂ and PM₂.₅, and the lone NO entry is outdated. Consequently, the picture of air quality in Alcalá de Guadaíra is more detailed for nitrogen oxides and coarse particulates than for carbon monoxide, sulfur dioxide or fine particles, and conditions can differ across locations and times not captured by the current rows.

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 Alcalá de Guadaíra is based on eight valid measurements and was refreshed within the past three days, with the most recent update recorded at 2026‑02‑09 03:00 UTC. This snapshot reflects conditions at the time of sampling; air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.

OpenAQ station rows