Air quality in Huelva, Andalusia, Spain today

Mr. Duck’s Air Quality Score

Moderate air today for Huelva, 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 in Huelva today is classified as Moderate. The primary pollutant identified for the current assessment is PM10, which represents coarser particulate matter measured across the monitoring network.

Based on 27 valid measurements, the observed concentration of fine particles (PM2.5) is 6.24 µg/m³ and the concentration of coarse particles (PM10) is 137.28 µg/m³. 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 Huelva contains recent measurements of seven common air‑quality pollutants – carbon monoxide, nitrogen oxide, nitrogen dioxide, ozone, particulate matter ≤10 µm (PM10), particulate matter ≤2.5 µg (PM2.5) and sulfur dioxide – collected from a total of 43 monitoring rows across the city. The number of stations that actually report each pollutant varies: eight rows provide PM10 values, seven give SO₂, six supply NO₂ and NO, five record CO, and only four contribute data for both PM2.5 and O₃. This uneven coverage means some pollutants are represented by a broader spatial network than others.

Freshness of the data is generally good, with most latest updates recorded on 2026‑02‑09 between 03:00 and 05:00 UTC. The only older timestamp belongs to NO, last refreshed on 2024‑02‑21, indicating that nitrogen oxide information may be less current than the rest. Across pollutants the median concentrations are low – for example, the median PM10 is 4.16 µg/m³ while the median CO sits at 350 µg/m³ – but the maximum values show a wide spread: PM10 peaks at 137.28 µg/m³ (recorded at La Orden), CO reaches 1 100 µg/m³ (Campus del Carmen) and ozone climbs to 76 µg/m³ (La Orden). The 10th‑percentile figures are close to zero for most gases, highlighting that many readings fall near background levels, whereas the 90th‑percentile values already approach the upper ends of the observed ranges.

Overall, Huelva’s air‑quality record offers a fairly recent snapshot for most pollutants, though the limited number of stations for NO and the older NO data suggest gaps in temporal coverage. Because conditions can differ between monitoring sites, the reported numbers represent point observations rather than a uniform citywide picture.

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 Huelva includes 27 valid measurements and is Updated within 3 days, with the most recent values recorded on 2026‑02‑09T05:00:00+00:00. These figures represent a snapshot of ambient conditions at the time of collection; air quality can vary across different neighbourhoods and throughout the day, so local levels may differ from those shown here.

OpenAQ station rows