Keystone, Colorado Air Quality
Real-time air quality index (AQI) and pollution data
Population: 1,216 • County: Summit
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 Keystone is sourced from the Boulder - CU - 2102 Athens St. monitoring area, located approximately 46 miles from city center. This EPA-certified station continuously tracks particulate matter (PM2.5), the primary driver of air quality alerts in this area.
Keystone 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 Keystone Air Quality
What is the air quality in Keystone today?
The current AQI in Keystone is 15, 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
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