Air quality in Alamosa, Colorado, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Alamosa, Colorado, 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 Alamosa, Colorado is rated as Good today. The primary pollutant measured is PM2.5 (fine particles). OpenAQ data show a PM2.5 reference value of 3.5 µg/m³ and a PM10 reference value of 29.0 µg/m³ based on two valid measurements.
These values reflect the current monitoring results 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 current station data listed for this city is focused on particulate matter (PM). In Alamosa, Colorado the available measurements come from a single monitoring location at Adams State College and include two pollutants: PM10 and PM2.5. Both pollutants have one recent reading each, recorded on 2026-02-11 00:00 UTC, which falls within the “updated within 7 days” freshness category.
For PM10 the observed value is 29.0 µg/m³, with the minimum, median and maximum all identical at 29.0 µg/m³, indicating no variation in this single record. PM2.5 shows a similar pattern, recorded at 3.5 µg/m³ across its min‑med‑max range. Because only one station contributes data, there is limited spatial coverage and no spread to describe variability over time or across the city. The timestamps are recent, but with just one row per pollutant the dataset cannot capture fluctuations that may occur elsewhere in Alamosa or at different times 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
The data shown for Alamosa reflects two valid measurements and was updated today (2026‑02‑11T00:00:00+00:00). This snapshot represents the most recent readings available, but air quality can vary by location and time within the city, so conditions at any specific spot may differ from what is displayed.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Adams State College | pm10 | 29.0 | µg/m³ | 2026-02-11 00:00 UTC |
| Adams State College | pm25 | 3.5 | µg/m³ | 2026-02-11 00:00 UTC |