Air quality in Champaign, Illinois, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Champaign, Illinois, 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 Champaign, Illinois is rated as Good today. The primary pollutant identified is PM2.5 (fine particles), with a measured concentration of 7.0 µg/m³. One valid measurement supports this assessment and the data are shown via OpenAQ.
Overall conditions meet the criteria for a Good category based on the available reading. 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). Only PM2.5 measurements are available from a single monitoring location in Champaign, Illinois, and that one record was last updated on 2026-02-11 00:00 UTC, which falls within the past seven days.
Because there is just one data row, the dataset shows a uniform value of 7.0 µg/m³ for PM2.5, with the minimum, median, and maximum all equal to that figure. This means there is no observed spread or variation in the reported concentrations across time or space within the city’s current coverage. The freshness of the single entry indicates recent reporting, but the lack of additional stations limits insight into how air quality might differ across neighborhoods or change throughout the day. Consequently, while the available reading is up‑to‑date, it represents only a narrow snapshot rather than a comprehensive picture of Champaign’s overall particulate matter conditions.
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 Champaign, Illinois reflects a single valid measurement and was updated today (2026‑02‑11T00:00:00+00:00). This snapshot represents conditions at the time of collection; air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment within the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Champaign | pm25 | 7.0 | µg/m³ | 2026-02-11 00:00 UTC |