Air quality in Logroño, Rioja, Spain today

Mr. Duck’s Air Quality Score

Good air today for Logroño, Rioja, 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 Logroño today is classified as Good. The primary pollutant measured is PM2.5, with a reference value of 3.4 µg/m³, while the corresponding PM10 reference value stands at 3.6 µg/m³. Data are based on ten valid measurements and are shown via OpenAQ.

Overall conditions meet the Good category criteria according to the latest assessment. 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 Logroño air‑quality dataset contains measurements for seven pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM₁₀), particulate matter ≤ 2.5 µm (PM₂.₅) and sulphur dioxide (SO₂). The data come from 18 rows of sensor readings collected at two monitoring stations, the most recent values being recorded on 2026‑02‑09 at 15:00 UTC for all pollutants except NO, whose latest entry dates back to 2024‑01‑11 at 23:00 UTC. For CO, NO₂, O₃, PM₁₀, SO₂ and PM₂.5 the timestamps are flagged as “updated within 7 days”, indicating a relatively fresh snapshot of current conditions.

Across the recent measurements the observed ranges are modest for most species. CO varies between 670 µg/m³ and 710 µg/m³ with a median of 690 µg/m³, while NO₂ spans 19‑28 µg/m³ (median 20 µg/m³). Ozone is recorded from 20 to 30 µg/m³ (median 28 µg/m³), and SO₂ stays low between 1.3 and 2.3 µg/m³ (median 1.3 µg/m³). Particulate matter shows a wider spread: PM₁₀ ranges from 3.6 to 26 µg/m³ (median 3.8 µg/m³) and PM₂.5 from 3.4 to 3.9 µg/m³ (median 3.65 µg/m³). The single NO reading is 1.4 µg/m³, but it originates from an older dataset.

The coverage is uneven: five of the seven pollutants have recent data from both stations, whereas NO relies on a solitary, dated entry. Consequently, while the latest snapshot offers a clear picture for most gases and particles, the overall view of Logroño’s air quality is limited by sparse and outdated information for nitrogen oxide, meaning conditions can still differ across neighbourhoods and times not captured in this 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 Logroño includes ten valid measurements and is refreshed regularly, having been updated within the past three days (last update: 2026‑02‑09 15:00 UTC). This snapshot reflects conditions at the time of collection; however, air quality can differ across neighborhoods and change throughout the day, so values shown may not represent every location or moment in the city.

OpenAQ station rows