{"id":524,"date":"2024-04-15T12:21:18","date_gmt":"2024-04-15T16:21:18","guid":{"rendered":"https:\/\/www.vdh.virginia.gov\/environmental-public-health-tracking\/?page_id=524"},"modified":"2026-03-11T15:04:23","modified_gmt":"2026-03-11T19:04:23","slug":"o3-number-of-days-over-air-quality-standard-monitor-modeled-data","status":"publish","type":"page","link":"https:\/\/www.vdh.virginia.gov\/environmental-public-health-tracking\/air-quality\/o3-number-of-days-over-air-quality-standard-monitor-modeled-data\/","title":{"rendered":"O3: Number of Days over Air Quality Standard (Monitor + Modeled Data)"},"content":{"rendered":"<div id=\"pl-524\"  class=\"panel-layout\" ><div id=\"pg-524-0\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-524-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-524-0-0-0\" class=\"so-panel widget widget_sow-headline panel-first-child\" data-index=\"0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-headline so-widget-sow-headline-default-dcc4b020ac78-524\"\n\t\t\t\n\t\t><div class=\"sow-headline-container \">\n\t\t\t\t\t\t\t<h1 class=\"sow-headline\">\n\t\t\t\t\t\tO3: Number of Days over Air Quality Standard (Monitor + Modeled Data)\t\t\t\t\t\t<\/h1>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"decoration\">\n\t\t\t\t\t\t<div class=\"decoration-inside\"><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div><\/div><div id=\"panel-524-0-0-1\" class=\"so-panel widget widget_sow-editor panel-last-child\" data-index=\"1\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p>Virginia EPHT program provides a \u201cData Embedded Visualization\u201d (a mirror image) of air quality data available from <a href=\"https:\/\/ephtracking.cdc.gov\/DataExplorer\/\">CDC's Environmental Public Health Tracking Network<\/a>. Displayed below are the number of days, based on monitor and modeled data, over the daily maximum ozone National Ambient Air Quality Standard (NAAQS) concentration of 0.070 ppm.<\/p>\n<p>To view information about the calculations, uses, sources, and more, please click the green About Data button in the upper right corner of the map. To download the map data, please use the download button next to the About Data button.<\/p>\n\n<!-- iframe plugin v.6.0 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" title=\"AIR QUALITY | NATIONAL AMBIENT AIR QUALITY STANDARDS (NAAQS) | O3: NUMBER OF DAYS OVER AIR QUALITY STANDARD (MONITOR + MODELED DATA) | VIRGINIA\" src=\"https:\/\/ephtracking.cdc.gov\/DataExplorer\/?query=5741ae37-dbea-4fe0-9c0e-fa14377abf5d&#038;G1=1&#038;G5=10\" width=\"1038\" height=\"900\" scrolling=\"yes\" class=\"iframe-class\" frameborder=\"0\"><\/iframe>\n\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Virginia EPHT program provides a \u201cData Embedded Visualization\u201d (a mirror image) of air quality data available from CDC&#8217;s Environmental Public Health Tracking Network. Displayed below are the number of days, based on monitor and modeled data, over the daily maximum ozone National Ambient Air Quality Standard (NAAQS) concentration of 0.070 ppm. To view information about [&hellip;]<\/p>\n","protected":false},"author":657,"featured_media":0,"parent":381,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","inline_featured_image":false,"footnotes":""},"tags":[],"class_list":["post-524","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>O3: Number of Days over Air Quality Standard (Monitor + Modeled Data) - Environmental Public Health Tracking<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vdh.virginia.gov\/environmental-public-health-tracking\/air-quality\/o3-number-of-days-over-air-quality-standard-monitor-modeled-data\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O3: Number of Days over Air Quality Standard (Monitor + Modeled Data) - Environmental Public Health Tracking\" \/>\n<meta property=\"og:description\" content=\"Virginia EPHT program provides a \u201cData Embedded Visualization\u201d (a mirror image) of air quality data available from CDC&#039;s Environmental Public Health Tracking Network. Displayed below are the number of days, based on monitor and modeled data, over the daily maximum ozone National Ambient Air Quality Standard (NAAQS) concentration of 0.070 ppm. 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