Air quality in Majadahonda, Community of Madrid, Spain today

Mr. Duck’s Air Quality Score

Good air today for Majadahonda, Community of Madrid, 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 in Majadahonda today is classified as Good. The main pollutant identified is PM2.5, with a measured value of 0.82 µg/m³ against its reference level, while the corresponding PM10 reference stands at 1.0 µg/m³. A total of eleven valid measurements were recorded for this assessment.

Data is shown via 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

Majadahonda’s OpenAQ feed contains eight measured variables: nitrogen monoxide (NO), nitrogen dioxide (NO2), ozone (O3), particulate matter of 1 µm (PM1), 2.5 µm (PM2.5), and 10 µm (PM10) diameter, relative humidity and temperature. The dataset is built from three monitoring rows, each representing a distinct sensor record. Freshness varies across the pollutants: the most recent NO2, O3 and PM10 values were recorded on 2026‑02‑09 at 15:00 UTC, while the latest readings for PM1, PM2.5, relative humidity and temperature come from 2026‑02‑10 at 15:00 UTC. The only older entry is the NO measurement, last updated on 2024‑02‑29 at 00:00 UTC.

The available numbers show a narrow spread for several pollutants. NO remains constant at 2 µg/m³ across its single recent record, whereas NO2 ranges from a minimum of 4 µg/m³ to a maximum of 67 µg/m³ with a median of 5 µg/m³; the 10th‑percentile is 4.2 and the 90th‑percentile reaches 54.6, indicating occasional higher concentrations. Ozone values cluster tightly between 9 µg/m³ and 69 µg/m³, with a median of 68 µg/m³ and a 10th‑percentile of 20.8, suggesting most recent readings are near the upper end of that range. Particulate matter shows very low levels: PM1 is recorded at 0.416 µg/m³, PM2.5 at 0.820 µg/m³ and PM10 at 1 µg/m³, each with identical minimum, median and maximum values, reflecting limited variation in the current data.

Overall, the dataset provides recent information for most pollutants, but coverage is uneven: NO has an older timestamp, and only three rows contribute to the whole city’s profile. Consequently, while the numbers give a snapshot of current conditions, they may not capture spatial or temporal variations that occur elsewhere in Majadahonda.

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 Majadahonda includes 11 valid measurements and is Updated within 3 days, with the latest values recorded on 2026‑02‑10 at 15:00 UTC. These figures represent a single point in time; air quality can differ across neighborhoods and change throughout the day, so this snapshot may not reflect conditions elsewhere in the city or later periods.

OpenAQ station rows