Insights: Youngstown-Warren-Boardman, OH-PA metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 47 over 304 measured days in 2025, which corresponds to a Good band and a Moderate metro-wide health grade. The monitored-day split lands at 178 Good days (59%), 121 Moderate (40%), and 5 Unhealthy-for-Sensitive-Groups (2%). The 90th-percentile AQI finished at 74 while the highest single-day reading hit 130 (USG). Metro residents averaged roughly 17.6 clean-air days per 30-day window across the reporting year.

Across the 2020–2025 trend window, good days shifted by -48 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 Ardmore, OK (65.3% good, AQI 47); Baltimore-Columbia-Towson, MD (62.2% good, AQI 47); Boise City, ID (64.7% good, AQI 47).