Air quality in Ciutadella, Balearic Islands, Spain today

Mr. Duck’s Air Quality Score

Good air today for Ciutadella, Balearic Islands, 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 Ciutadella is classified as Good today. The primary pollutant identified is PM2.5 (fine particles).

Measurements show a PM2.5 reference value of 3.0 and a PM10 reference value of 9.0, based on ten valid observations reported through OpenAQ. This indicates that the concentrations of these particulate matters are within the range associated with the Good category.

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 Ciutadella air‑quality dataset contains measurements for six pollutants – nitrogen monoxide (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 16 individual rows collected at two monitoring stations, giving a modest spatial coverage of the city.

All pollutants except NO have recent readings that were last updated on 2026‑02‑09 at 12:00 UTC, which falls within the “updated within 7 days” freshness category. NO is an outlier; its only available value (0.0 µg/m³) dates back to 2024‑01‑01 at 04:00 UTC and is flagged as old data. For the five regularly refreshed pollutants, the observed concentrations span a fairly wide range. NO₂ varies from 5.0 µg/m³ up to 31.0 µg/m³ with a median of 13.0 µg/m³; O₃ shows values between 0.0 and 67.0 µg/m³, the median sitting at 8.0 µg/m³ and the 90th percentile reaching 55.2 µg/m³. PM₁₀ ranges from 9.0 to 22.0 µg/m³ (median 16.0), while PM₂.₅ is recorded between 3.0 and 13.0 µg/m³ (median 6.0). SO₂ levels are low, from 1.3 to 4.2 µg/m³ with a median of 2.0.

Because the dataset includes only two stations, conditions can differ across neighborhoods and times that are not captured here. The overall picture is that most pollutants have fresh, daily‑level data covering a broad concentration spectrum, whereas NO information is sparse and outdated.

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 data shown are based on ten valid measurements and were refreshed recently, with the latest update recorded on 2026‑02‑09T12:00:00+00:00 (updated within 3 days). This snapshot reflects conditions at the time of collection; air quality can vary across different locations and times within Ciutadella, so values may differ from what you experience elsewhere in the city.

OpenAQ station rows