Air quality in Valderas, Castile and León, Spain today

Mr. Duck’s Air Quality Score

Good air today for Valderas, Castile and León, 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 Valderas today is classified as Good. The primary pollutant identified is PM10, with measurements indicating a concentration of 4.0 µg/m³ based on eight valid readings.

Data are shown via OpenAQ and reflect the current monitoring results for 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 Valderas air‑quality dataset contains measurements for five pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM₁₀) and sulphur dioxide (SO₂). All of these values come from a single monitoring site, giving a total of nine data rows across the city. For most pollutants the latest reading was recorded on 2026‑02‑09, which means the information is fresh – each of those entries is marked as updated within the past seven days. The only exception is NO, whose most recent value dates back to 2024‑01‑29 and is therefore classified as old data.

The reported concentrations show a fairly narrow spread. NO₂ ranges from 1.0 µg/m³ at its minimum to 2.0 µg/m³ at its maximum, with a median of 1.5 µg/m³; O₃ varies between 66.0 and 67.0 µg/m³, centering on a median of 66.5 µg/m³; PM₁₀ is recorded from 4.0 up to 9.0 µg/m³ with a median of 6.5 µg/m³; SO₂ spans 1.0‑4.0 µg/m³, median 2.5 µg/m³; and NO remains constant at 1.0 µg/m³ across its single entry. The percentile values (10th and 90th) are close to the minima and maxima for each pollutant, indicating limited variability in the recent measurements.

Because the dataset relies on a single station, spatial coverage within Valderas is limited; conditions can differ in other neighbourhoods or at times not captured by these rows. Moreover, while four of the five pollutants have up‑to‑date observations, the NO measurement is over two years old, highlighting an uneven temporal completeness across the pollutant set.

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 Valderas includes eight valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑09 at 15:00 UTC (Updated within 3 days). This information reflects a single point in time; air quality can differ across neighborhoods and change throughout the day, so the values shown represent only a snapshot rather than a continuous condition for the entire city.

OpenAQ station rows