Air quality in Los Realejos, Spain today

Mr. Duck’s Air Quality Score

Good air today for Los Realejos, 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 Los Realejos is currently classified as Good. The main pollutant identified is PM2.5. The assessment is based on five recent observations that meet quality criteria, giving a valid measurement count of five. According to the latest OpenAQ data, the reference value for PM2.5 is 5.0 µg/m³ and the reference value for PM10 is 8.0 µg/m³. PM2.5 represents fine particles measured in micrograms per cubic meter, while PM10 includes particles up to ten micrometers in size. All measured concentrations fall within the range associated with the Good category. No other pollutants exceed the reference thresholds at this time. Data is shown via OpenAQ, which aggregates measurements from participating monitoring stations.

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 Los Realejos data set contains seven rows of measurements drawn from a single monitoring site identified as BALSA DE ZAMORA-LOS REALEJOS. All seven common air‑quality pollutants are represented: carbon monoxide (CO) at 1000.0 µg/m³ (last updated 2026‑02‑09 15:00 UTC), nitrogen monoxide (NO) at 2.0 µg/m³ (last updated 2024‑02‑07 00:00 UTC), nitrogen dioxide (NO2) at 6.0 µg/m³ (last updated 2026‑02‑09 15:00 UTC), ozone (O3) at 79.0 µg/m³ (last updated 2026‑02‑09 15:00 UTC), particulate matter 10 µm (PM10) at 8.0 µg/m³ (last updated 2026‑02‑03 01:00 UTC), particulate matter 2.5 µg/m³ (PM2.5) at 5.0 µg/m³ (last updated 2026‑02‑03 01:00 UTC) and sulfur dioxide (SO2) at 7.0 µg/m³ (last updated 2026‑02‑09 15:00 UTC). For each pollutant the recorded minimum, median and maximum values are identical, indicating that the dataset captures a single snapshot rather than a range of observations.

The timestamps show that most of the measurements are fresh, having been recorded within the last 30 days, while the NO value is older by two years. Because only one station supplies all rows, the data provide a limited spatial picture of air quality across Los Realejos; conditions can differ in other neighbourhoods or at other times of day. The uniform values across the statistical fields (min, median, max) also mean there is no observed variability within the recorded period, so the dataset does not reveal short‑term fluctuations. Together, the breadth of pollutants, the recentness of most readings, and the single‑site coverage give a concise but narrow view of the city’s current air‑quality profile.

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 Los Realejos includes five valid measurements and is updated within 30 days. The most recent data were recorded on 2026-02-09 at 15:00 UTC. This snapshot reflects conditions at the time of sampling, but air quality can vary by location and time within the city, so values may differ from current conditions.

OpenAQ station rows