Air quality in Cairns, Queensland, Australia today
Mr. Duck’s Air Quality Score
Good air today for Cairns, Queensland, Australia
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Cairns, Queensland is currently rated as Good. The main pollutant identified in the assessment is PM2.5. The reference value for PM2.5 is 5.4 µg/m³, while the reference value for PM10 is 22.4 µg/m³. These figures are based on two valid measurements collected for today. Fine particulate matter (PM2.5) is measured in micrograms per cubic meter, and the reference level of 5.4 µg/m³ serves as a benchmark for evaluating air quality. Similarly, PM10 is expressed in the same units with a reference level of 22.4 µg/m³. With only two valid observations, the dataset provides a snapshot of today's ambient conditions.
Data is shown via OpenAQ. 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 current station data listed for this city is focused on particulate matter (PM). In Cairns the available measurements are for PM10 and PM2.5, each reported in micrograms per cubic metre. The dataset contains a single monitoring location, so the station coverage for this city is limited to one row of observations. Both pollutants have a most‑recent update timestamp of 2026‑02‑10 22:00 UTC, which falls within the “updated within 3 days” freshness window, indicating that the values are recent.
Because only one station contributes data, the reported figures show no range: the minimum, median and maximum for PM10 are all 22.4 µg/m³, and for PM2.5 they are all 5.4 µg/m³. This lack of variability reflects the narrow spatial sampling rather than a stable ambient condition. Consequently, while the timestamps are fresh, the overall picture of air quality in Cairns is based on a very small sample, and conditions can differ across other parts of the city or at other times.
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 current dataset for Cairns includes two valid measurements and is updated within 3 days, with the latest refresh on 2026-02-10T22:00:00+00:00. These values provide a recent snapshot of ambient conditions, but air quality can vary by location and time within the city. Users should consider this variability when interpreting the figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Cairns | pm10 | 22.4 | µg/m³ | 2026-02-10 22:00 UTC |
| Cairns | pm25 | 5.4 | µg/m³ | 2026-02-10 22:00 UTC |