{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/air-quality/39530/","name":"Air quality for ZIP 39530 — Biloxi (MS), MS","description":"Air quality data for ZIP 39530 (Biloxi (MS), Mississippi), 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":"39530","city":"Biloxi (MS)","state":"MS","stateFull":"Mississippi","county":"Harrison County (MS)","countySlug":"harrison-county","geo":{"latitude":30.396,"longitude":-88.8853}},"stateContext":{"topConcern":"Hurricanes, tornadoes, rural water compliance","narrative":"Mississippi's Gulf Coast carries FEMA VE/AE zones. Jackson's water-system crisis (2022) flagged severe EPA SDWIS compliance issues; many small rural systems statewide face similar oversight pressure. Tornado risk peaks April."},"radonZone":null,"airQuality":{"year":2025,"medianAqi":43,"medianCategory":"Good","maxAqi":97,"p90Aqi":62,"daysWithAqi":365,"goodDays":252,"moderateDays":113,"usgDays":0,"unhealthyDays":0,"veryUnhealthyDays":0,"hazardousDays":0,"classification":"county-level ANNUAL summary — not a live current reading, not an address-level measurement","caveat":"This is a county-level ANNUAL SUMMARY for 2025, not a live current reading. For today's air quality, check a real-time monitor at airnow.gov. Categories follow EPA's official AQI breakpoints."},"datePublished":"2026-04-24","dateModified":"2026-09-07","canonicalUrl":"https://zipradar.org/topic/air-quality/39530/","zipDashboardUrl":"https://zipradar.org/zip/39530/","zipDashboardApiUrl":"https://zipradar.org/api/zip/39530/","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/39530/"}}