Air quality in Columbia Falls, Montana, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Columbia Falls, Montana, United States of America
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Columbia Falls, Montana is currently rated as Good. The primary pollutant identified is PM2.5, with a measured concentration of 9.0 µg/m³, and the accompanying PM10 level is 3.0 µg/m³. These concentrations correspond to the reference values used for assessment, indicating that the observed levels are at the reference thresholds. The Good category reflects that the measured values do not exceed the reference limits for these fine particles.
The reported figures are based on two valid measurements and are shown via OpenAQ. Both readings were collected during the same sampling interval, providing a consistent snapshot of ambient conditions. 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 Columbia Falls, Montana, the OpenAQ feed provides measurements for two pollutants: PM10 and PM2.5. The dataset contains two rows of observations originating from a single monitoring site. The most recent timestamp in the collection is 2026-02-10 23:00 UTC for PM10, while the PM2.5 reading dates back to 2026-01-24 14:00 UTC, indicating that the freshest data is just under a month old and the other measurement is older than a month.
Both pollutants show a single reported value, with PM10 recorded at 3.0 µg/m³ and PM2.5 at 9.0 µg/m³; the minimum, median and maximum are identical for each, so no variability can be assessed from this snapshot. Coverage is uneven because only PM10 has a recent entry, whereas the PM2.5 data is classified as old. With only one monitoring location and two rows, the dataset is sparse, so it may not capture spatial or temporal changes in air quality across the city. Users should keep in mind that actual conditions can differ by neighborhood and time of day.
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
This snapshot is based on two valid measurements and was updated within 30 days, with the latest data recorded on 2026-02-10T23:00:00+00:00. Because only a small number of readings are available, the values represent a limited view of conditions. Air quality can vary by location and time within the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Columbia Falls | pm10 | 3.0 | µg/m³ | 2026-02-10 23:00 UTC |
| Columbia Falls | pm25 | 9.0 | µg/m³ | 2026-01-24 14:00 UTC |