Insights: Athens-Clarke County, GA metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 44 over 273 measured days in 2025, which corresponds to a Good band and a Moderate metro-wide health grade. The monitored-day split lands at 182 Good days (67%), 91 Moderate (33%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 60 while the highest single-day reading hit 89 (Moderate). Metro residents averaged roughly 20.0 clean-air days per 30-day window across the reporting year.

Across the 2020–2025 trend window, good days shifted by -67 and the median AQI moved +0 points, which classifies the multi-year trajectory as stable. The metro avoided any Unhealthy-tier days entirely, an outcome that typically reflects favorable wind patterns, lower industrial density, or effective regional emission controls. Metros with comparable AQI profiles include Bartlesville, OK (65.6% good, AQI 44); Bloomington, IL (64.1% good, AQI 44); Boston-Cambridge-Newton, MA-NH (68.3% good, AQI 44).