{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/air-quality/20001/","name":"Air quality for ZIP 20001 — Washington, DC","description":"Air quality data for ZIP 20001 (Washington, District of Columbia), 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":"20001","city":"Washington","state":"DC","stateFull":"District of Columbia","county":"District of Columbia","countySlug":"district-of-columbia","geo":{"latitude":38.9121,"longitude":-77.0177}},"stateContext":{"topConcern":"Lead service lines (DC Water), flood","narrative":"DC Water has documented elevated lead service line replacement obligations under LCRR. The Anacostia + Potomac waterfronts have FEMA AE zones; FBI UCR jurisdictional reporting for DC differs from state UCR aggregations."},"datePublished":"2026-04-24","dateModified":"2026-05-13","canonicalUrl":"https://zipradar.org/topic/air-quality/20001/","zipDashboardUrl":"https://zipradar.org/zip/20001/","zipDashboardApiUrl":"https://zipradar.org/api/zip/20001/","primarySourceUrl":"https://www.airnow.gov/","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/air-quality/20001/"}}