{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/air-quality/40503/","name":"Air quality for ZIP 40503 — Lexington (KY), KY","description":"Air quality data for ZIP 40503 (Lexington (KY), Kentucky), sourced from EPA AirNow.","topic":{"slug":"air-quality","label":"Air quality","source":"EPA AirNow","sourceUrl":"https://www.airnow.gov/","refreshCadence":"Hourly real-time / daily historical","summary":"Pages show the current AQI category (Good, Moderate, Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, Hazardous), the nearest reporting station, and historical averages.","limitations":"Rural ZIPs may not have a nearby monitoring station; zipradar then reports the closest available station with distance context."},"place":{"zip":"40503","city":"Lexington (KY)","state":"KY","stateFull":"Kentucky","county":"Fayette County","countySlug":"fayette-county","geo":{"latitude":38.0019,"longitude":-84.5269}},"stateContext":{"topConcern":"Mining-affected water, flood (Ohio + tributaries)","narrative":"Kentucky's Appalachian eastern counties face mining-affected water systems with elevated EPA SDWIS compliance risk. Ohio River + tributary FEMA AE zones expose Louisville, Owensboro, and Newport. Radon risk varies by karst geology."},"datePublished":"2026-04-24","dateModified":"2026-05-13","canonicalUrl":"https://zipradar.org/topic/air-quality/40503/","zipDashboardUrl":"https://zipradar.org/zip/40503/","zipDashboardApiUrl":"https://zipradar.org/api/zip/40503/","primarySourceUrl":"https://www.airnow.gov/","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/air-quality/40503/"}}