Air quality in San Sebastián de la Gomera, Spain today

Mr. Duck’s Air Quality Score

Good air today for San Sebastián de la Gomera, 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 San Sebastián de la Gomera is classified as Good. According to the latest assessment, the dominant pollutant is PM10. The reference value for PM10 is 20.0 µg/m³, and this figure is based on nine valid measurements collected for the current period. Nine measurements were recorded at different monitoring stations within the municipality, providing a representative sample for the day. No reference value for PM2.5 is reported for today.

The Good classification reflects that the combined index of the measured pollutants remains below the threshold defined for this category. The information is presented through OpenAQ, which aggregates the available monitoring data. 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 OpenAQ feed for San Sebastián de la Gomera contains seven measured pollutants – carbon monoxide, nitrogen monoxide, nitrogen dioxide, ozone, particulate matter 10 µm, particulate matter 2.5 µg, and sulphur dioxide – recorded across 13 data rows that originate from three monitoring stations. Ten of those rows have been updated within the last 30 days, while three rows are classified as older; no entries are from today, the past three days, or the past week. Freshness varies by pollutant: the most recent timestamps are from 2026‑02‑09 15:00 UTC for SO₂, NO₂, and O₃; PM₁₀ was last refreshed on 2026‑02‑03 01:00 UTC; CO on 2026‑01‑29 23:00 UTC; PM₂.₅ on 2026‑01‑09 02:00 UTC; and the NO reading dates back to 2024‑02‑09 00:00 UTC, making it the only value that is more than two years old.

Across the recent data the observed ranges differ markedly. Sulphur dioxide values sit between 4.0 and 6.0 µg/m³ with a median of 4.5 µg/m³, while nitrogen dioxide spans a broader interval from 2.0 up to 20.0 µg/m³ and a median of 11.0 µg/m³, indicating more variability in that pollutant. Ozone measurements range from 58.0 to 69.0 µg/m³ with a median of 63.5 µg/m³, and PM₁₀ varies between 15.0 and 20.0 µg/m³ (median 17.5 µg/m³). In contrast, carbon monoxide, PM₂.₅ and nitrogen monoxide each appear in a single row and show a single reported value – 400.0 µg/m³ for CO, 2.0 µg/m³ for PM₂.₅, and 4.0 µg/m³ for NO – reflecting very limited spatial coverage for those gases. Overall, the dataset offers recent information for most pollutants but shows uneven station representation and an outdated NO record, so conditions in the city can still differ by location and time beyond what the current rows capture.

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

This snapshot is based on nine valid measurements and was updated within 30 days, with the latest data recorded on 2026-02-09 at 15:00 UTC. These figures reflect the monitoring period up to the timestamp and are intended for general information only. Air quality can vary by location and time within the city, so values may not represent every neighbourhood.

OpenAQ station rows