Air quality in Chania, Region of Crete, Greece today

Mr. Duck’s Air Quality Score

Moderate air today for Chania, Region of Crete, Greece

⚠️ 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 Chania today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles).

Measurements from seven valid monitoring points show a PM2.5 reference value of 12.0 and a PM10 reference value of 21.0. These figures are presented through OpenAQ data for the city. 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 Chania includes six measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM10), particulate matter ≤ 2.5 µm (PM2.5) and sulphur dioxide (SO₂). Data come from nine individual rows that are grouped into two monitoring stations, AKROTIRI and CHANIA‑2. All values were last updated on 2026-02-10 12:00 UTC, which falls within the “updated within three days” freshness window, so the information reflects very recent conditions for each pollutant.

Across the nine rows the observed concentrations show a modest spread. For NO₂ the minimum recorded value is 1.0 µg/m³ and the maximum 6.0 µg/m³, with a median of 3.5 µg/m³; the 10th‑percentile sits at 1.5 µg/m³ and the 90th‑percentile at 5.5 µg/m³. O₃ ranges from 44.0 to 54.0 µg/m³, median 49.0 µg/m³, with most readings clustered between 45.0 and 53.0 µg/m³. PM10 shows the widest variation, spanning 1.0‑21.0 µg/m³, a median of 11.0 µg/m³ and percentiles at 3.0 and 19.0 µg/m³ respectively. In contrast, CO, PM2.5 and SO₂ each have a single reported value – 300.0 µg/m³ for CO, 12.0 µg/m³ for PM2.5 and 2.0 µg/m³ for SO₂ – all recorded at CHANIA‑2 on the same timestamp.

The coverage is uneven: while NO₂, O₃ and PM10 are reported from both stations, CO, PM2.5 and SO₂ appear only in the CHANIA‑2 rows. Because the dataset contains a limited number of recent rows, it captures only a snapshot of air quality at specific locations and times; conditions elsewhere in Chania may differ. Nonetheless, the data provide a clear picture of current pollutant concentrations across the two monitoring sites.

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 for Chania reflects seven valid measurements and was updated within 3 days, with the latest refresh on 2026‑02‑10 at 12:00 UTC. This snapshot provides a current view of ambient air quality, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.

OpenAQ station rows