{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/air-quality/99801/","name":"Air quality for ZIP 99801 — Juneau, AK","description":"Air quality data for ZIP 99801 (Juneau, Alaska), sourced from EPA Air Quality System (AQS), annual county summary.","topic":{"slug":"air-quality","label":"Air quality","source":"EPA Air Quality System (AQS), annual county summary","sourceUrl":"https://aqs.epa.gov/aqsweb/airdata/download_files.html","refreshCadence":"Annual (EPA AQS publication)","summary":"Pages show the 2025 median AQI category (Good, Moderate, Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, Hazardous) for the ZIP's county, plus the year's max/90th-percentile AQI and day-count breakdown by category.","limitations":"This is a county-level ANNUAL SUMMARY, not a live current reading and not an address-level measurement — for today's AQI, EPA's real-time AirNow feed is the correct source (not yet federated here). Not every county operates an EPA monitor; absence of data for a ZIP's county means no 2025 EPA reading exists, not that air is good."},"place":{"zip":"99801","city":"Juneau","state":"AK","stateFull":"Alaska","county":"Juneau City and Borough","countySlug":"juneau-city-and-borough","geo":{"latitude":58.3019,"longitude":-134.4197}},"stateContext":{"topConcern":"Permafrost, wildfire, and remote drinking-water systems","narrative":"Alaska's federated data carries unusual constraints: many parcels sit on permafrost where ground temperatures shape foundation risk; FEMA NFHL coverage is incomplete outside major boroughs; EPA SDWIS systems can be unincorporated or village-operated. Wildfire risk has accelerated 2020-2025 in the boreal interior."},"radonZone":null,"airQuality":null,"waterQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-15","canonicalUrl":"https://zipradar.org/topic/air-quality/99801/","zipDashboardUrl":"https://zipradar.org/zip/99801/","zipDashboardApiUrl":"https://zipradar.org/api/zip/99801/","primarySourceUrl":"https://aqs.epa.gov/aqsweb/airdata/download_files.html","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/air-quality/99801/"}}