Insights: Emporia, KS metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 22 over 18 measured days in 2025, which corresponds to a Good band and a Good metro-wide health grade. The monitored-day split lands at 16 Good days (89%), 2 Moderate (11%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 53 while the highest single-day reading hit 56 (Moderate). Metro residents averaged roughly 26.7 clean-air days per 30-day window across the reporting year.

Across the 2020–2025 trend window, good days shifted by -94 and the median AQI moved -2 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 Bend-Redmond, OR (93.4% good, AQI 22); Ellensburg, WA (84.8% good, AQI 22); Gardnerville Ranchos, NV (90.9% good, AQI 22).