Vienna, Illinois Air Quality
Real-time air quality index (AQI) and pollution data
Population: 1,873 • County: Johnson
Current AQI
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 90 Days
Current Pollutant Levels
Real-time data from EPA AirNow
Local Air Quality Context
Air quality data for Vienna is sourced from the KNIGHT_P monitoring area, located approximately 49 miles from city center. This EPA-certified station continuously tracks particulate matter (PM2.5), the primary driver of air quality alerts in this area.
Vienna has relatively consistent air quality throughout the year without a strong seasonal peak. Air quality is primarily influenced by local traffic, industrial activity, and regional weather patterns rather than a single seasonal driver.
Frequently Asked Questions About Vienna Air Quality
What is the air quality in Vienna today?
The current AQI in Vienna is 31, rated "Good". Air quality is good — outdoor activity is safe for everyone today. Air quality is satisfactory, and air pollution poses little or no risk.
Air Quality Grade
Better than 0% of US cities
Nearby Cities
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National Rankings
See how Vienna compares to every other US city by air quality.
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