ECHO Clean Air Tracking Tool - Air Monitoring Stations | ECHO

<!DOCTYPE html> <html lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ og: http://ogp.me/ns# rdfs: http://www.w3.org/2000/01/rdf-schema# schema: http://schema.org/ sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema# "> <head>  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-L8ZB');</script>  <meta charset="utf-8" /> <meta name="Generator" content="Drupal 10 (https://www.drupal.org)" /> <meta name="MobileOptimized" content="width" /> <meta name="HandheldFriendly" content="true" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <link rel="icon" href="/themes/custom/echo/favicon.ico" type="image/vnd.microsoft.icon" /> <link rel="canonical" href="https://echo.epa.gov/trends/air-monitoring-stations" /> <link rel="shortlink" href="https://echo.epa.gov/node/540" /> <title>ECHO Clean Air Tracking Tool - Air Monitoring Stations | ECHO | US EPA</title> <link rel="stylesheet" media="all" href="/files/css/css_b2QtWEFnNeGY0Stq38WX62xWeRuz8N4cC08Jh_j588k.css?delta=0&language=en&theme=echo&include=eJxtzEEOwyAMRNELUXEkZGAarAJG2LTK7Rs1ya7beZqPVCSkFzKbTL9ViVSd7mpoPpLCYVBY-sl64UNtr9w3h-P5bws0RuVExtJDkm7odod_jsPMU9OgoJnKWXqjZ5nqdA3MJ2vx3NlOaxK54qovK1fuCwrISQg" /> <link rel="stylesheet" media="all" href="/files/css/css_1QydhEcwEbbgF_YMBykZ5-GxkhzNT6kkA5CItuzFSvg.css?delta=1&language=en&theme=echo&include=eJxtzEEOwyAMRNELUXEkZGAarAJG2LTK7Rs1ya7beZqPVCSkFzKbTL9ViVSd7mpoPpLCYVBY-sl64UNtr9w3h-P5bws0RuVExtJDkm7odod_jsPMU9OgoJnKWXqjZ5nqdA3MJ2vx3NlOaxK54qovK1fuCwrISQg" /> <link rel="stylesheet" media="all" href="/files/css/css_Cjb2ViY_Ds3iSTziyUNVtnfEn4G1irREVwOGyhhqWXM.css?delta=2&language=en&theme=echo&include=eJxtzEEOwyAMRNELUXEkZGAarAJG2LTK7Rs1ya7beZqPVCSkFzKbTL9ViVSd7mpoPpLCYVBY-sl64UNtr9w3h-P5bws0RuVExtJDkm7odod_jsPMU9OgoJnKWXqjZ5nqdA3MJ2vx3NlOaxK54qovK1fuCwrISQg" /> <link rel="stylesheet" media="all" href="/files/css/css_UY-bUipj7dg_fOTrcVmAJOCfc5EKxGiDUEHpu7EMsm8.css?delta=3&language=en&theme=echo&include=eJxtzEEOwyAMRNELUXEkZGAarAJG2LTK7Rs1ya7beZqPVCSkFzKbTL9ViVSd7mpoPpLCYVBY-sl64UNtr9w3h-P5bws0RuVExtJDkm7odod_jsPMU9OgoJnKWXqjZ5nqdA3MJ2vx3NlOaxK54qovK1fuCwrISQg" /> </head> <body>  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-L8ZB" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas>  <div class="banner-message epa-header"> </div> <div class="skiplinks epa-header" role="navigation" aria-labelledby="skip-to-main--echo"> <a id="skip-to-main--echo" href="#main-content" class="skiplinks__link visually-hidden focusable">Skip to main content</a> </div> <section class="usa-banner epa-header" aria-label="Official government website"> <div class="usa-accordion"> <header class="usa-banner__header"> <div class="usa-banner__inner"> <div class="grid-col-auto"> <img class="usa-banner__header-flag" src="https://www.epa.gov/themes/epa_theme/images/us_flag_small.png" alt="U.S. flag" height="11px" width="16px"> </div> <div class="grid-col-fill tablet:grid-col-auto"> <p class="usa-banner__header-text">An official website of the United States government</p> <p class="usa-banner__header-action" aria-hidden="true">Here’s how you know</p></div> <button class="usa-accordion__button usa-banner__button" aria-expanded="false" aria-controls="gov-banner"> <span class="usa-banner__button-text">Here’s how you know</span> </button> </div> </header> <div class="usa-banner__content usa-accordion__content" id="gov-banner" hidden=""> <div class="grid-row grid-gap-lg"> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="https://www.epa.gov/themes/epa_theme/images/icon-dot-gov.svg" alt="Dot gov"> <div class="usa-media-block__body"> <p> <strong>Official websites use .gov</strong> <br> A <strong>.gov</strong> website belongs to an official government organization in the United States. </p> </div> </div> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="https://www.epa.gov/themes/epa_theme/images/icon-https.svg" alt="HTTPS"> <div class="usa-media-block__body"> <p> <strong>Secure .gov websites use HTTPS</strong> <br> A <strong>lock</strong> (<span class="icon-lock"><svg xmlns="http://www.w3.org/2000/svg" width="52" height="64" viewBox="0 0 52 64" class="usa-banner__lock-image" role="img" aria-labelledby="banner-lock-title banner-lock-description"><title id="banner-lock-title">Lock</title><desc id="banner-lock-description">A locked padlock</desc><path fill="#000000" fill-rule="evenodd" d="M26 0c10.493 0 19 8.507 19 19v9h3a4 4 0 0 1 4 4v28a4 4 0 0 1-4 4H4a4 4 0 0 1-4-4V32a4 4 0 0 1 4-4h3v-9C7 8.507 15.507 0 26 0zm0 8c-5.979 0-10.843 4.77-10.996 10.712L15 19v9h22v-9c0-6.075-4.925-11-11-11z"></path></svg></span>) or <strong>https://</strong> means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. </p> </div> </div> </div> </div> </div> </section> <header class="l-header epa-header"> <div class="usa-overlay"></div> <div class="l-constrain"> <div class="l-header__navbar"> <div class="l-header__branding"> <a class="site-logo" href="https://www.epa.gov/" aria-label="EPA Home" title="EPA Home" rel="epaHome"> <span class="site-logo__image"> <svg class="site-logo__svg" viewBox="0 0 1061 147" aria-hidden="true" xmlns="http://www.w3.org/2000/svg"> <path d="M112.8 53.5C108 72.1 89.9 86.8 69.9 86.8c-20.1 0-38-14.7-42.9-33.4h.2s9.8 10.3-.2 0c3.1 3.1 6.2 4.4 10.7 4.4s7.7-1.3 10.7-4.4c3.1 3.1 6.3 4.5 10.9 4.4 4.5 0 7.6-1.3 10.7-4.4 3.1 3.1 6.2 4.4 10.7 4.4 4.5 0 7.7-1.3 10.7-4.4 3.1 3.1 6.3 4.5 10.9 4.4 4.3 0 7.4-1.2 10.5-4.3zM113.2 43.5c0-24-19.4-43.5-43.3-43.5-24 0-43.5 19.5-43.5 43.5h39.1c-4.8-1.8-8.1-6.3-8.1-11.6 0-7 5.7-12.5 12.5-12.5 7 0 12.7 5.5 12.7 12.5 0 5.2-3.1 9.6-7.6 11.6h38.2zM72.6 139.3c.7-36.9 29.7-68.8 66.9-70 0 37.2-30 68-66.9 70zM67.1 139.3c-.7-36.9-29.7-68.8-67.1-70 0 37.2 30.2 68 67.1 70zM240 3.1h-87.9v133.1H240v-20.4h-60.3v-36H240v-21h-60.3v-35H240V3.1zM272.8 58.8h27.1c9.1 0 15.2-8.6 15.1-17.7-.1-9-6.1-17.3-15.1-17.3h-25.3v112.4h-27.8V3.1h62.3c20.2 0 35 17.8 35.2 38 .2 20.4-14.8 38.7-35.2 38.7h-36.3v-21zM315.9 136.2h29.7l12.9-35h54.2l-8.1-21.9h-38.4l18.9-50.7 39.2 107.6H454L400.9 3.1h-33.7l-51.3 133.1zM473.3.8v22.4c0 1.9.2 3.3.5 4.3s.7 1.7 1 2.2c1.2 1.4 2.5 2.4 3.9 2.9 1.5.5 2.8.7 4.1.7 2.4 0 4.2-.4 5.5-1.3 1.3-.8 2.2-1.8 2.8-2.9.6-1.1.9-2.3 1-3.4.1-1.1.1-2 .1-2.6V.8h4.7v24c0 .7-.1 1.5-.4 2.4-.3 1.8-1.2 3.6-2.5 5.4-1.8 2.1-3.8 3.5-6 4.2-2.2.6-4 .9-5.3.9-1.8 0-3.8-.3-6.2-1.1-2.4-.8-4.5-2.3-6.2-4.7-.5-.8-1-1.8-1.4-3.2-.4-1.3-.6-3.3-.6-5.9V.8h5zM507.5 14.5v-2.9l4.6.1-.1 4.1c.2-.3.4-.7.8-1.2.3-.5.8-.9 1.4-1.4.6-.5 1.4-.9 2.3-1.3.9-.3 2.1-.5 3.4-.4.6 0 1.4.1 2.4.3.9.2 1.9.6 2.9 1.2s1.8 1.5 2.4 2.6c.6 1.2.9 2.8.9 4.7l-.4 17-4.6-.1.4-16c0-.9 0-1.7-.2-2.4-.1-.7-.5-1.3-1.1-1.9-1.2-1.2-2.6-1.8-4.3-1.8-1.7 0-3.1.5-4.4 1.7-1.3 1.2-2 3.1-2.1 5.7l-.3 14.5-4.5-.1.5-22.4zM537.2.9h5.5V6h-5.5V.9m.5 10.9h4.6v25.1h-4.6V11.8zM547.8 11.7h4.3V6.4l4.5-1.5v6.8h5.4v3.4h-5.4v15.1c0 .3 0 .6.1 1 0 .4.1.7.4 1.1.2.4.5.6 1 .8.4.3 1 .4 1.8.4 1 0 1.7-.1 2.2-.2V37c-.9.2-2.1.3-3.8.3-2.1 0-3.6-.4-4.6-1.2-1-.8-1.5-2.2-1.5-4.2V15.1h-4.3v-3.4zM570.9 25.2c-.1 2.6.5 4.8 1.7 6.5 1.1 1.7 2.9 2.6 5.3 2.6 1.5 0 2.8-.4 3.9-1.3 1-.8 1.6-2.2 1.8-4h4.6c0 .6-.2 1.4-.4 2.3-.3 1-.8 2-1.7 3-.2.3-.6.6-1 1-.5.4-1 .7-1.7 1.1-.7.4-1.5.6-2.4.8-.9.3-2 .4-3.3.4-7.6-.2-11.3-4.5-11.3-12.9 0-2.5.3-4.8 1-6.8s2-3.7 3.8-5.1c1.2-.8 2.4-1.3 3.7-1.6 1.3-.2 2.2-.3 3-.3 2.7 0 4.8.6 6.3 1.6s2.5 2.3 3.1 3.9c.6 1.5 1 3.1 1.1 4.6.1 1.6.1 2.9 0 4h-17.5m12.9-3v-1.1c0-.4 0-.8-.1-1.2-.1-.9-.4-1.7-.8-2.5s-1-1.5-1.8-2c-.9-.5-2-.8-3.4-.8-.8 0-1.5.1-2.3.3-.8.2-1.5.7-2.2 1.3-.7.6-1.2 1.3-1.6 2.3-.4 1-.7 2.2-.8 3.6h13zM612.9.9h4.6V33c0 1 .1 2.3.2 4h-4.6l-.1-4c-.2.3-.4.7-.7 1.2-.3.5-.8 1-1.4 1.5-1 .7-2 1.2-3.1 1.4l-1.5.3c-.5.1-.9.1-1.4.1-.4 0-.8 0-1.3-.1s-1.1-.2-1.7-.3c-1.1-.3-2.3-.9-3.4-1.8s-2.1-2.2-2.9-3.8c-.8-1.7-1.2-3.9-1.2-6.6.1-4.8 1.2-8.3 3.4-10.5 2.1-2.1 4.7-3.2 7.6-3.2 1.3 0 2.4.2 3.4.5.9.3 1.6.7 2.2 1.2.6.4 1 .9 1.3 1.4.3.5.6.8.7 1.1V.9m0 23.1c0-1.9-.2-3.3-.5-4.4-.4-1.1-.8-2-1.4-2.6-.5-.7-1.2-1.3-2-1.8-.9-.5-2-.7-3.3-.7-1.7 0-2.9.5-3.8 1.3-.9.8-1.6 1.9-2 3.1-.4 1.2-.7 2.3-.7 3.4-.1 1.1-.2 1.9-.1 2.4 0 1.1.1 2.2.3 3.4.2 1.1.5 2.2 1 3.1.5 1 1.2 1.7 2 2.3.9.6 2 .9 3.3.9 1.8 0 3.2-.5 4.2-1.4 1-.8 1.7-1.8 2.1-3 .4-1.2.7-2.4.8-3.4.1-1.4.1-2.1.1-2.6zM643.9 26.4c0 .6.1 1.3.3 2.1.1.8.5 1.6 1 2.3.5.8 1.4 1.4 2.5 1.9s2.7.8 4.7.8c1.8 0 3.3-.3 4.4-.8 1.1-.5 1.9-1.1 2.5-1.8.6-.7 1-1.5 1.1-2.2.1-.7.2-1.2.2-1.7 0-1-.2-1.9-.5-2.6-.4-.6-.9-1.2-1.6-1.6-1.4-.8-3.4-1.4-5.9-2-4.9-1.1-8.1-2.2-9.5-3.2-1.4-1-2.3-2.2-2.9-3.5-.6-1.2-.8-2.4-.8-3.6.1-3.7 1.5-6.4 4.2-8.1 2.6-1.7 5.7-2.5 9.1-2.5 1.3 0 2.9.2 4.8.5 1.9.4 3.6 1.4 5 3 .5.5.9 1.1 1.2 1.7.3.5.5 1.1.6 1.6.2 1.1.3 2.1.3 2.9h-5c-.2-2.2-1-3.7-2.4-4.5-1.5-.7-3.1-1.1-4.9-1.1-5.1.1-7.7 2-7.8 5.8 0 1.5.5 2.7 1.6 3.5 1 .8 2.6 1.4 4.7 1.9 4 1 6.7 1.8 8.1 2.2.8.2 1.4.5 1.8.7.5.2 1 .5 1.4.9.8.5 1.4 1.1 1.9 1.8s.8 1.4 1.1 2.1c.3 1.4.5 2.5.5 3.4 0 3.3-1.2 6-3.5 8-2.3 2.1-5.8 3.2-10.3 3.3-1.4 0-3.2-.3-5.4-.8-1-.3-2-.7-3-1.2-.9-.5-1.8-1.2-2.5-2.1-.9-1.4-1.5-2.7-1.7-4.1-.3-1.3-.4-2.4-.3-3.2h5zM670 11.7h4.3V6.4l4.5-1.5v6.8h5.4v3.4h-5.4v15.1c0 .3 0 .6.1 1 0 .4.1.7.4 1.1.2.4.5.6 1 .8.4.3 1 .4 1.8.4 1 0 1.7-.1 2.2-.2V37c-.9.2-2.1.3-3.8.3-2.1 0-3.6-.4-4.6-1.2-1-.8-1.5-2.2-1.5-4.2V15.1H670v-3.4zM705.3 36.9c-.3-1.2-.5-2.5-.4-3.7-.5 1-1.1 1.8-1.7 2.4-.7.6-1.4 1.1-2 1.4-1.4.5-2.7.8-3.7.8-2.8 0-4.9-.8-6.4-2.2-1.5-1.4-2.2-3.1-2.2-5.2 0-1 .2-2.3.8-3.7.6-1.4 1.7-2.6 3.5-3.7 1.4-.7 2.9-1.2 4.5-1.5 1.6-.1 2.9-.2 3.9-.2s2.1 0 3.3.1c.1-2.9-.2-4.8-.9-5.6-.5-.6-1.1-1.1-1.9-1.3-.8-.2-1.6-.4-2.3-.4-1.1 0-2 .2-2.6.5-.7.3-1.2.7-1.5 1.2-.3.5-.5.9-.6 1.4-.1.5-.2.9-.2 1.2h-4.6c.1-.7.2-1.4.4-2.3.2-.8.6-1.6 1.3-2.5.5-.6 1-1 1.7-1.3.6-.3 1.3-.6 2-.8 1.5-.4 2.8-.6 4.2-.6 1.8 0 3.6.3 5.2.9 1.6.6 2.8 1.6 3.4 2.9.4.7.6 1.4.7 2 .1.6.1 1.2.1 1.8l-.2 12c0 1 .1 3.1.4 6.3h-4.2m-.5-12.1c-.7-.1-1.6-.1-2.6-.1h-2.1c-1 .1-2 .3-3 .6s-1.9.8-2.6 1.5c-.8.7-1.2 1.7-1.2 3 0 .4.1.8.2 1.3s.4 1 .8 1.5.9.8 1.6 1.1c.7.3 1.5.5 2.5.5 2.3 0 4.1-.9 5.2-2.7.5-.8.8-1.7 1-2.7.1-.9.2-2.2.2-4zM714.5 11.7h4.3V6.4l4.5-1.5v6.8h5.4v3.4h-5.4v15.1c0 .3 0 .6.1 1 0 .4.1.7.4 1.1.2.4.5.6 1 .8.4.3 1 .4 1.8.4 1 0 1.7-.1 2.2-.2V37c-.9.2-2.1.3-3.8.3-2.1 0-3.6-.4-4.6-1.2-1-.8-1.5-2.2-1.5-4.2V15.1h-4.3v-3.4zM737.6 25.2c-.1 2.6.5 4.8 1.7 6.5 1.1 1.7 2.9 2.6 5.3 2.6 1.5 0 2.8-.4 3.9-1.3 1-.8 1.6-2.2 1.8-4h4.6c0 .6-.2 1.4-.4 2.3-.3 1-.8 2-1.7 3-.2.3-.6.6-1 1-.5.4-1 .7-1.7 1.1-.7.4-1.5.6-2.4.8-.9.3-2 .4-3.3.4-7.6-.2-11.3-4.5-11.3-12.9 0-2.5.3-4.8 1-6.8s2-3.7 3.8-5.1c1.2-.8 2.4-1.3 3.7-1.6 1.3-.2 2.2-.3 3-.3 2.7 0 4.8.6 6.3 1.6s2.5 2.3 3.1 3.9c.6 1.5 1 3.1 1.1 4.6.1 1.6.1 2.9 0 4h-17.5m12.9-3v-1.1c0-.4 0-.8-.1-1.2-.1-.9-.4-1.7-.8-2.5s-1-1.5-1.8-2c-.9-.5-2-.8-3.4-.8-.8 0-1.5.1-2.3.3-.8.2-1.5.7-2.2 1.3-.7.6-1.2 1.3-1.6 2.3-.4 1-.7 2.2-.8 3.6h13zM765.3 29.5c0 .5.1 1 .2 1.4.1.5.4 1 .8 1.5s.9.8 1.6 1.1c.7.3 1.6.5 2.7.5 1 0 1.8-.1 2.5-.3.7-.2 1.3-.6 1.7-1.2.5-.7.8-1.5.8-2.4 0-1.2-.4-2-1.3-2.5s-2.2-.9-4.1-1.2c-1.3-.3-2.4-.6-3.6-1-1.1-.3-2.1-.8-3-1.3-.9-.5-1.5-1.2-2-2.1-.5-.8-.8-1.9-.8-3.2 0-2.4.9-4.2 2.6-5.6 1.7-1.3 4-2 6.8-2.1 1.6 0 3.3.3 5 .8 1.7.6 2.9 1.6 3.7 3.1.4 1.4.6 2.6.6 3.7h-4.6c0-1.8-.6-3-1.7-3.5-1.1-.4-2.1-.6-3.1-.6h-1c-.5 0-1.1.2-1.7.4-.6.2-1.1.5-1.5 1.1-.5.5-.7 1.2-.7 2.1 0 1.1.5 1.9 1.3 2.3.7.4 1.5.7 2.1.9 3.3.7 5.6 1.3 6.9 1.8 1.3.4 2.2 1 2.8 1.7.7.7 1.1 1.4 1.4 2.2.3.8.4 1.6.4 2.5 0 1.4-.3 2.7-.9 3.8-.6 1.1-1.4 2-2.4 2.6-1.1.6-2.2 1-3.4 1.3-1.2.3-2.5.4-3.8.4-2.5 0-4.7-.6-6.6-1.8-1.8-1.2-2.8-3.3-2.9-6.3h5.2zM467.7 50.8h21.9V55h-17.1v11.3h16.3v4.2h-16.3v12.1H490v4.3h-22.3zM499 64.7l-.1-2.9h4.6v4.1c.2-.3.4-.8.7-1.2.3-.5.8-1 1.3-1.5.6-.5 1.4-1 2.3-1.3.9-.3 2-.5 3.4-.5.6 0 1.4.1 2.4.2.9.2 1.9.5 2.9 1.1 1 .6 1.8 1.4 2.5 2.5.6 1.2 1 2.7 1 4.7V87h-4.6V71c0-.9-.1-1.7-.2-2.4-.2-.7-.5-1.3-1.1-1.9-1.2-1.1-2.6-1.7-4.3-1.7-1.7 0-3.1.6-4.3 1.8-1.3 1.2-2 3.1-2 5.7V87H499V64.7zM524.6 61.8h5.1l7.7 19.9 7.6-19.9h5l-10.6 25.1h-4.6zM555.7 50.9h5.5V56h-5.5v-5.1m.5 10.9h4.6v25.1h-4.6V61.8zM570.3 67c0-1.8-.1-3.5-.3-5.1h4.6l.1 4.9c.5-1.8 1.4-3 2.5-3.7 1.1-.7 2.2-1.2 3.3-1.3 1.4-.2 2.4-.2 3.1-.1v4.6c-.2-.1-.5-.2-.9-.2h-1.3c-1.3 0-2.4.2-3.3.5-.9.4-1.5.9-2 1.6-.9 1.4-1.4 3.2-1.3 5.4v13.3h-4.6V67zM587.6 74.7c0-1.6.2-3.2.6-4.8.4-1.6 1.1-3 2-4.4 1-1.3 2.2-2.4 3.8-3.2 1.6-.8 3.6-1.2 5.9-1.2 2.4 0 4.5.4 6.1 1.3 1.5.9 2.7 2 3.6 3.3.9 1.3 1.5 2.8 1.8 4.3.2.8.3 1.5.4 2.2v2.2c0 3.7-1 6.9-3 9.5-2 2.6-5.1 4-9.3 4-4-.1-7-1.4-9-3.9-1.9-2.5-2.9-5.6-2.9-9.3m4.8-.3c0 2.7.6 5 1.8 6.9 1.2 2 3 3 5.6 3.1.9 0 1.8-.2 2.7-.5.8-.3 1.6-.9 2.3-1.7.7-.8 1.3-1.9 1.8-3.2.4-1.3.6-2.9.6-4.7-.1-6.4-2.5-9.6-7.1-9.6-.7 0-1.5.1-2.4.3-.8.3-1.7.8-2.5 1.6-.8.7-1.4 1.7-1.9 3-.6 1.1-.9 2.8-.9 4.8zM620.2 64.7l-.1-2.9h4.6v4.1c.2-.3.4-.8.7-1.2.3-.5.8-1 1.3-1.5.6-.5 1.4-1 2.3-1.3.9-.3 2-.5 3.4-.5.6 0 1.4.1 2.4.2.9.2 1.9.5 2.9 1.1 1 .6 1.8 1.4 2.5 2.5.6 1.2 1 2.7 1 4.7V87h-4.6V71c0-.9-.1-1.7-.2-2.4-.2-.7-.5-1.3-1.1-1.9-1.2-1.1-2.6-1.7-4.3-1.7-1.7 0-3.1.6-4.3 1.8-1.3 1.2-2 3.1-2 5.7V87h-4.6V64.7zM650 65.1l-.1-3.3h4.6v3.6c1.2-1.9 2.6-3.2 4.1-3.7 1.5-.4 2.7-.6 3.8-.6 1.4 0 2.6.2 3.6.5.9.3 1.7.7 2.3 1.1 1.1 1 1.9 2 2.3 3.1.2-.4.5-.8 1-1.3.4-.5.9-1 1.5-1.6.6-.5 1.5-.9 2.5-1.3 1-.3 2.2-.5 3.5-.5.9 0 1.9.1 3 .3 1 .2 2 .7 3 1.3 1 .6 1.7 1.5 2.3 2.7.6 1.2.9 2.7.9 4.6v16.9h-4.6V70.7c0-1.1-.1-2-.2-2.5-.1-.6-.3-1-.6-1.3-.4-.6-1-1.2-1.8-1.6-.8-.4-1.8-.6-3.1-.6-1.5 0-2.7.4-3.6 1-.4.3-.8.5-1.1.9l-.8.8c-.5.8-.8 1.8-1 2.8-.1 1.1-.2 2-.1 2.6v14.1h-4.6V70.2c0-1.6-.5-2.9-1.4-4-.9-1-2.3-1.5-4.2-1.5-1.6 0-2.9.4-3.8 1.1-.9.7-1.5 1.2-1.8 1.7-.5.7-.8 1.5-.9 2.5-.1.9-.2 1.8-.2 2.6v14.3H650V65.1zM700.5 75.2c-.1 2.6.5 4.8 1.7 6.5 1.1 1.7 2.9 2.6 5.3 2.6 1.5 0 2.8-.4 3.9-1.3 1-.8 1.6-2.2 1.8-4h4.6c0 .6-.2 1.4-.4 2.3-.3 1-.8 2-1.7 3-.2.3-.6.6-1 1-.5.4-1 .7-1.7 1.1-.7.4-1.5.6-2.4.8-.9.3-2 .4-3.3.4-7.6-.2-11.3-4.5-11.3-12.9 0-2.5.3-4.8 1-6.8s2-3.7 3.8-5.1c1.2-.8 2.4-1.3 3.7-1.6 1.3-.2 2.2-.3 3-.3 2.7 0 4.8.6 6.3 1.6s2.5 2.3 3.1 3.9c.6 1.5 1 3.1 1.1 4.6.1 1.6.1 2.9 0 4h-17.5m12.8-3v-1.1c0-.4 0-.8-.1-1.2-.1-.9-.4-1.7-.8-2.5s-1-1.5-1.8-2c-.9-.5-2-.8-3.4-.8-.8 0-1.5.1-2.3.3-.8.2-1.5.7-2.2 1.3-.7.6-1.2 1.3-1.6 2.3-.4 1-.7 2.2-.8 3.6h13zM725.7 64.7l-.1-2.9h4.6v4.1c.2-.3.4-.8.7-1.2.3-.5.8-1 1.3-1.5.6-.5 1.4-1 2.3-1.3.9-.3 2-.5 3.4-.5.6 0 1.4.1 2.4.2.9.2 1.9.5 2.9 1.1 1 .6 1.8 1.4 2.5 2.5.6 1.2 1 2.7 1 4.7V87h-4.6V71c0-.9-.1-1.7-.2-2.4-.2-.7-.5-1.3-1.1-1.9-1.2-1.1-2.6-1.7-4.3-1.7-1.7 0-3.1.6-4.3 1.8-1.3 1.2-2 3.1-2 5.7V87h-4.6V64.7zM752.3 61.7h4.3v-5.2l4.5-1.5v6.8h5.4v3.4h-5.4v15.1c0 .3 0 .6.1 1 0 .4.1.7.4 1.1.2.4.5.6 1 .8.4.3 1 .4 1.8.4 1 0 1.7-.1 2.2-.2V87c-.9.2-2.1.3-3.8.3-2.1 0-3.6-.4-4.6-1.2-1-.8-1.5-2.2-1.5-4.2V65.1h-4.3v-3.4zM787.6 86.9c-.3-1.2-.5-2.5-.4-3.7-.5 1-1.1 1.8-1.7 2.4-.7.6-1.4 1.1-2 1.4-1.4.5-2.7.8-3.7.8-2.8 0-4.9-.8-6.4-2.2-1.5-1.4-2.2-3.1-2.2-5.2 0-1 .2-2.3.8-3.7.6-1.4 1.7-2.6 3.5-3.7 1.4-.7 2.9-1.2 4.5-1.5 1.6-.1 2.9-.2 3.9-.2s2.1 0 3.3.1c.1-2.9-.2-4.8-.9-5.6-.5-.6-1.1-1.1-1.9-1.3-.8-.2-1.6-.4-2.3-.4-1.1 0-2 .2-2.6.5-.7.3-1.2.7-1.5 1.2-.3.5-.5.9-.6 1.4-.1.5-.2.9-.2 1.2h-4.6c.1-.7.2-1.4.4-2.3.2-.8.6-1.6 1.3-2.5.5-.6 1-1 1.7-1.3.6-.3 1.3-.6 2-.8 1.5-.4 2.8-.6 4.2-.6 1.8 0 3.6.3 5.2.9 1.6.6 2.8 1.6 3.4 2.9.4.7.6 1.4.7 2 .1.6.1 1.2.1 1.8l-.2 12c0 1 .1 3.1.4 6.3h-4.2m-.5-12.1c-.7-.1-1.6-.1-2.6-.1h-2.1c-1 .1-2 .3-3 .6s-1.9.8-2.6 1.5c-.8.7-1.2 1.7-1.2 3 0 .4.1.8.2 1.3s.4 1 .8 1.5.9.8 1.6 1.1c.7.3 1.5.5 2.5.5 2.3 0 4.1-.9 5.2-2.7.5-.8.8-1.7 1-2.7.1-.9.2-2.2.2-4zM800.7 50.9h4.6V87h-4.6zM828.4 50.8h11.7c2.1 0 3.9.1 5.5.4.8.2 1.5.4 2.2.9.7.4 1.3.9 1.8 1.6 1.7 1.9 2.6 4.2 2.6 7 0 2.7-.9 5.1-2.8 7.1-.8.9-2 1.7-3.6 2.2-1.6.6-3.9.9-6.9.9h-5.7V87h-4.8V50.8m4.8 15.9h5.8c.8 0 1.7-.1 2.6-.2.9-.1 1.8-.3 2.6-.7.8-.4 1.5-1 2-1.9.5-.8.8-2 .8-3.4s-.2-2.5-.7-3.3c-.5-.8-1.1-1.3-1.9-1.7-1.6-.5-3.1-.8-4.5-.7h-6.8v11.9zM858.1 67c0-1.8-.1-3.5-.3-5.1h4.6l.1 4.9c.5-1.8 1.4-3 2.5-3.7 1.1-.7 2.2-1.2 3.3-1.3 1.4-.2 2.4-.2 3.1-.1v4.6c-.2-.1-.5-.2-.9-.2h-1.3c-1.3 0-2.4.2-3.3.5-.9.4-1.5.9-2 1.6-.9 1.4-1.4 3.2-1.3 5.4v13.3H858V67zM875.5 74.7c0-1.6.2-3.2.6-4.8.4-1.6 1.1-3 2-4.4 1-1.3 2.2-2.4 3.8-3.2 1.6-.8 3.6-1.2 5.9-1.2 2.4 0 4.5.4 6.1 1.3 1.5.9 2.7 2 3.6 3.3.9 1.3 1.5 2.8 1.8 4.3.2.8.3 1.5.4 2.2v2.2c0 3.7-1 6.9-3 9.5-2 2.6-5.1 4-9.3 4-4-.1-7-1.4-9-3.9-1.9-2.5-2.9-5.6-2.9-9.3m4.8-.3c0 2.7.6 5 1.8 6.9 1.2 2 3 3 5.6 3.1.9 0 1.8-.2 2.7-.5.8-.3 1.6-.9 2.3-1.7.7-.8 1.3-1.9 1.8-3.2.4-1.3.6-2.9.6-4.7-.1-6.4-2.5-9.6-7.1-9.6-.7 0-1.5.1-2.4.3-.8.3-1.7.8-2.5 1.6-.8.7-1.4 1.7-1.9 3-.7 1.1-.9 2.8-.9 4.8zM904.1 61.7h4.3v-5.2l4.5-1.5v6.8h5.4v3.4h-5.4v15.1c0 .3 0 .6.1 1 0 .4.1.7.4 1.1.2.4.5.6 1 .8.4.3 1 .4 1.8.4 1 0 1.7-.1 2.2-.2V87c-.9.2-2.1.3-3.8.3-2.1 0-3.6-.4-4.6-1.2-1-.8-1.5-2.2-1.5-4.2V65.1h-4.3v-3.4zM927.2 75.2c-.1 2.6.5 4.8 1.7 6.5 1.1 1.7 2.9 2.6 5.3 2.6 1.5 0 2.8-.4 3.9-1.3 1-.8 1.6-2.2 1.8-4h4.6c0 .6-.2 1.4-.4 2.3-.3 1-.8 2-1.7 3-.2.3-.6.6-1 1-.5.4-1 .7-1.7 1.1-.7.4-1.5.6-2.4.8-.9.3-2 .4-3.3.4-7.6-.2-11.3-4.5-11.3-12.9 0-2.5.3-4.8 1-6.8s2-3.7 3.8-5.1c1.2-.8 2.4-1.3 3.7-1.6 1.3-.2 2.2-.3 3-.3 2.7 0 4.8.6 6.3 1.6s2.5 2.3 3.1 3.9c.6 1.5 1 3.1 1.1 4.6.1 1.6.1 2.9 0 4h-17.5m12.9-3v-1.1c0-.4 0-.8-.1-1.2-.1-.9-.4-1.7-.8-2.5s-1-1.5-1.8-2c-.9-.5-2-.8-3.4-.8-.8 0-1.5.1-2.3.3-.8.2-1.5.7-2.2 1.3-.7.6-1.2 1.3-1.6 2.3-.4 1-.7 2.2-.8 3.6h13zM966.1 69.8c0-.3 0-.8-.1-1.4-.1-.6-.3-1.1-.6-1.8-.2-.6-.7-1.2-1.4-1.6-.7-.4-1.6-.6-2.7-.6-1.5 0-2.7.4-3.5 1.2-.9.8-1.5 1.7-1.9 2.8-.4 1.1-.6 2.2-.7 3.2-.1 1.1-.2 1.8-.1 2.4 0 1.3.1 2.5.3 3.7.2 1.2.5 2.3.9 3.3.8 2 2.4 3 4.8 3.1 1.9 0 3.3-.7 4.1-1.9.8-1.1 1.2-2.3 1.2-3.6h4.6c-.2 2.5-1.1 4.6-2.7 6.3-1.7 1.8-4.1 2.7-7.1 2.7-.9 0-2.1-.2-3.6-.6-.7-.2-1.4-.6-2.2-1-.8-.4-1.5-1-2.2-1.7-.7-.9-1.4-2.1-2-3.6-.6-1.5-.9-3.5-.9-6.1 0-2.6.4-4.8 1.1-6.6.7-1.7 1.6-3.1 2.7-4.2 1.1-1 2.3-1.8 3.6-2.2 1.3-.4 2.5-.6 3.7-.6h1.6c.6.1 1.3.2 1.9.4.7.2 1.4.5 2.1 1 .7.4 1.3 1 1.8 1.7.9 1.1 1.4 2.1 1.7 3.1.2 1 .3 1.8.3 2.6h-4.7zM973.6 61.7h4.3v-5.2l4.5-1.5v6.8h5.4v3.4h-5.4v15.1c0 .3 0 .6.1 1 0 .4.1.7.4 1.1.2.4.5.6 1 .8.4.3 1 .4 1.8.4 1 0 1.7-.1 2.2-.2V87c-.9.2-2.1.3-3.8.3-2.1 0-3.6-.4-4.6-1.2-1-.8-1.5-2.2-1.5-4.2V65.1h-4.3v-3.4zM993.5 50.9h5.5V56h-5.5v-5.1m.5 10.9h4.6v25.1H994V61.8zM1006.1 74.7c0-1.6.2-3.2.6-4.8.4-1.6 1.1-3 2-4.4 1-1.3 2.2-2.4 3.8-3.2 1.6-.8 3.6-1.2 5.9-1.2 2.4 0 4.5.4 6.1 1.3 1.5.9 2.7 2 3.6 3.3.9 1.3 1.5 2.8 1.8 4.3.2.8.3 1.5.4 2.2v2.2c0 3.7-1 6.9-3 9.5-2 2.6-5.1 4-9.3 4-4-.1-7-1.4-9-3.9-1.9-2.5-2.9-5.6-2.9-9.3m4.7-.3c0 2.7.6 5 1.8 6.9 1.2 2 3 3 5.6 3.1.9 0 1.8-.2 2.7-.5.8-.3 1.6-.9 2.3-1.7.7-.8 1.3-1.9 1.8-3.2.4-1.3.6-2.9.6-4.7-.1-6.4-2.5-9.6-7.1-9.6-.7 0-1.5.1-2.4.3-.8.3-1.7.8-2.5 1.6-.8.7-1.4 1.7-1.9 3-.6 1.1-.9 2.8-.9 4.8zM1038.6 64.7l-.1-2.9h4.6v4.1c.2-.3.4-.8.7-1.2.3-.5.8-1 1.3-1.5.6-.5 1.4-1 2.3-1.3.9-.3 2-.5 3.4-.5.6 0 1.4.1 2.4.2.9.2 1.9.5 2.9 1.1 1 .6 1.8 1.4 2.5 2.5.6 1.2 1 2.7 1 4.7V87h-4.6V71c0-.9-.1-1.7-.2-2.4-.2-.7-.5-1.3-1.1-1.9-1.2-1.1-2.6-1.7-4.3-1.7-1.7 0-3.1.6-4.3 1.8-1.3 1.2-2 3.1-2 5.7V87h-4.6V64.7zM479.1 100.8h5.2l14.1 36.1h-5.3l-3.8-9.4h-16.2l-3.8 9.4h-5l14.8-36.1m-4.4 22.7H488l-6.5-17.8-6.8 17.8zM508.7 138.8c.1.7.2 1.4.4 1.9.2.6.5 1.1.9 1.6.8.9 2.3 1.4 4.4 1.5 1.6 0 2.8-.3 3.7-.9.9-.6 1.5-1.4 1.9-2.4.4-1.1.6-2.3.7-3.7.1-1.4.1-2.9.1-4.6-.5.9-1.1 1.7-1.8 2.3-.7.6-1.5 1-2.3 1.3-1.7.4-3 .6-3.9.6-1.2 0-2.4-.2-3.8-.6-1.4-.4-2.6-1.2-3.7-2.5-1-1.3-1.7-2.8-2.1-4.4-.4-1.6-.6-3.2-.6-4.8 0-4.3 1.1-7.4 3.2-9.5 2-2.1 4.6-3.1 7.6-3.1 1.3 0 2.3.1 3.2.4.9.3 1.6.6 2.1 1 .6.4 1.1.8 1.5 1.2l.9 1.2v-3.4h4.4l-.1 4.5v15.7c0 2.9-.1 5.2-.2 6.7-.2 1.6-.5 2.8-1 3.7-1.1 1.9-2.6 3.2-4.6 3.7-1.9.6-3.8.8-5.6.8-2.4 0-4.3-.3-5.6-.8-1.4-.5-2.4-1.2-3-2-.6-.8-1-1.7-1.2-2.7-.2-.9-.3-1.8-.4-2.7h4.9m5.3-5.8c1.4 0 2.5-.2 3.3-.7.8-.5 1.5-1.1 2-1.8.5-.6.9-1.4 1.2-2.5.3-1 .4-2.6.4-4.8 0-1.6-.2-2.9-.4-3.9-.3-1-.8-1.8-1.4-2.4-1.3-1.4-3-2.2-5.2-2.2-1.4 0-2.5.3-3.4 1-.9.7-1.6 1.5-2 2.4-.4 1-.7 2-.9 3-.2 1-.2 2-.2 2.8 0 1 .1 1.9.3 2.9.2 1.1.5 2.1 1 3 .5.9 1.2 1.6 2 2.2.8.7 1.9 1 3.3 1zM537.6 125.2c-.1 2.6.5 4.8 1.7 6.5 1.1 1.7 2.9 2.6 5.3 2.6 1.5 0 2.8-.4 3.9-1.3 1-.8 1.6-2.2 1.8-4h4.6c0 .6-.2 1.4-.4 2.3-.3 1-.8 2-1.7 3-.2.3-.6.6-1 1-.5.4-1 .7-1.7 1.1-.7.4-1.5.6-2.4.8-.9.3-2 .4-3.3.4-7.6-.2-11.3-4.5-11.3-12.9 0-2.5.3-4.8 1-6.8s2-3.7 3.8-5.1c1.2-.8 2.4-1.3 3.7-1.6 1.3-.2 2.2-.3 3-.3 2.7 0 4.8.6 6.3 1.6s2.5 2.3 3.1 3.9c.6 1.5 1 3.1 1.1 4.6.1 1.6.1 2.9 0 4h-17.5m12.9-3v-1.1c0-.4 0-.8-.1-1.2-.1-.9-.4-1.7-.8-2.5s-1-1.5-1.8-2.1c-.9-.5-2-.8-3.4-.8-.8 0-1.5.1-2.3.3-.8.2-1.5.7-2.2 1.3-.7.6-1.2 1.3-1.6 2.3-.4 1-.7 2.2-.8 3.7h13zM562.9 114.7l-.1-2.9h4.6v4.1c.2-.3.4-.8.7-1.2.3-.5.8-1 1.3-1.5.6-.5 1.4-1 2.3-1.3.9-.3 2-.5 3.4-.5.6 0 1.4.1 2.4.2.9.2 1.9.5 2.9 1.1 1 .6 1.8 1.4 2.5 2.5.6 1.2 1 2.7 1 4.7V137h-4.6v-16c0-.9-.1-1.7-.2-2.4-.2-.7-.5-1.3-1.1-1.9-1.2-1.1-2.6-1.7-4.3-1.7-1.7 0-3.1.6-4.3 1.8-1.3 1.2-2 3.1-2 5.7V137h-4.6v-22.3zM607 119.8c0-.3 0-.8-.1-1.4-.1-.6-.3-1.1-.6-1.8-.2-.6-.7-1.2-1.4-1.6-.7-.4-1.6-.6-2.7-.6-1.5 0-2.7.4-3.5 1.2-.9.8-1.5 1.7-1.9 2.8-.4 1.1-.6 2.2-.7 3.2-.1 1.1-.2 1.8-.1 2.4 0 1.3.1 2.5.3 3.7.2 1.2.5 2.3.9 3.3.8 2 2.4 3 4.8 3.1 1.9 0 3.3-.7 4.1-1.9.8-1.1 1.2-2.3 1.2-3.6h4.6c-.2 2.5-1.1 4.6-2.7 6.3-1.7 1.8-4.1 2.7-7.1 2.7-.9 0-2.1-.2-3.6-.6-.7-.2-1.4-.6-2.2-1-.8-.4-1.5-1-2.2-1.7-.7-.9-1.4-2.1-2-3.6-.6-1.5-.9-3.5-.9-6.1 0-2.6.4-4.8 1.1-6.6.7-1.7 1.6-3.1 2.7-4.2 1.1-1 2.3-1.8 3.6-2.2 1.3-.4 2.5-.6 3.7-.6h1.6c.6.1 1.3.2 1.9.4.7.2 1.4.5 2.1 1 .7.4 1.3 1 1.8 1.7.9 1.1 1.4 2.1 1.7 3.1.2 1 .3 1.8.3 2.6H607zM629.1 137.1l-3.4 9.3H621l3.8-9.6-10.3-25h5.2l7.6 19.8 7.7-19.8h5z"></path> </svg> </span> </a> <button class="usa-menu-btn usa-button l-header__menu-button">Menu</button> </div> <div class="l-header__search"> <form class="usa-search usa-search--small usa-search--epa" method="get" action="https://search.epa.gov/epasearch"> <div role="search"> <label class="usa-sr-only" for="search-box">Search</label> <input class="usa-input" id="search-box" type="search" name="querytext" placeholder="Search EPA.gov"> <button class="button button--dark" type="submit"> <img src="https://www.epa.gov/themes/epa_theme/images/usa-icons-bg/search--white.svg" class="usa-search__submit-icon" alt="Search"> </button> <input type="hidden" name="areaname" value=""> <input type="hidden" name="areacontacts" value=""> <input type="hidden" name="areasearchurl" value=""> <input type="hidden" name="typeofsearch" value="epa"> <input type="hidden" name="result_template" value=""> </div> <input type="hidden" name="csrf_token" value="mt64iJncSdOEXFXltw9Wwq3fjS1soCzbVjdhzL4v9dw"> </form> </div> </div> </div> <div class="l-header__nav"> <nav class="usa-nav usa-nav--epa" role="navigation" aria-label="Primary navigation"> <div class="usa-nav__inner"> <button class="usa-nav__close" aria-label="Close"> <svg class="icon icon--nav-close" aria-hidden="true" role="img"><title>Primary navigation</title> <use href="/themes/custom/epa_uswds/images/sprite.artifact.svg#close"></use> </svg> </button> <div class="usa-nav__menu"> <ul class="menu menu--main"> <li class="menu__item"><a href="https://www.epa.gov/environmental-topics" class="menu__link">Environmental Topics</a></li> <li class="menu__item"><a href="https://www.epa.gov/laws-regulations" class="menu__link">Laws & Regulations</a></li> <li class="menu__item"><a href="https://www.epa.gov/report-violation" class="menu__link">Report a Violation</a></li> <li class="menu__item"><a href="https://www.epa.gov/aboutepa" class="menu__link">About EPA</a></li> </ul> </div> </div> </nav> </div> </header> <main id="main-content" class="main" role="main" tabindex="-1"> <div class="l-page padding-top-0"> <div class="l-constrain"> <article class=" article"> <header> <a class="echo-logo" href="https://echo.epa.gov/"> <img src="/themes/custom/echo/images/logo.png" alt="ECHO: " style="vertical-align:middle;"> </a> <div id="block-mainmenu"> <ul id="superfish-main" class="menu sf-menu sf-main sf-horizontal sf-style-none"> <li id="main-menu-link-contenta737b389-e6c1-408a-a3cd-23cd330c3d8d" class="sf-depth-1 menuparent"><a href="/" title="" class="sf-depth-1 menuparent">Search Options</a><ul><li id="main-menu-link-content07d1512a-809b-455c-a3b4-23d06c0f319b" class="sf-depth-2 menuparent"><span class="sf-depth-2 menuparent nolink">Cross Program</span><ul><li id="main-menu-link-contentf9e959f2-7fbd-44af-ac91-09a7c2dcb8aa" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search?mediaSelected=all" class="sf-depth-3">All Media Programs Facility Search</a></li><li id="main-menu-link-content36e95b02-1da3-4ea9-bcff-193663f29dc4" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search/results?mediaSelected=fac" class="sf-depth-3">Map All Facilities</a></li><li id="main-menu-link-content30396e9b-3280-4035-a7c2-4409bf63bbc1" class="sf-depth-3 sf-no-children"><a href="/facilities/compliance-screener" title="" class="sf-depth-3">Corporate Compliance Screener</a></li><li id="main-menu-link-content55742b8b-1650-46f5-a479-ebfe52742ab6" class="sf-depth-3 sf-no-children"><a href="/tools/echo-notify" title="" class="sf-depth-3">ECHO Notify</a></li></ul></li><li id="main-menu-link-content227bf9c5-20b7-476a-b2c2-7c779740b2d3" class="sf-depth-2 menuparent"><a href="/" title="" class="sf-depth-2 menuparent">Air</a><ul><li id="main-menu-link-content5996f5fc-f74c-4405-adc6-435ab4ea4f74" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search?mediaSelected=caa" class="sf-depth-3">Air Facility Search</a></li><li id="main-menu-link-contentfd4c2717-fcc6-42da-9f2e-c7e7a45f1c37" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search/results?mediaSelected=caa" class="sf-depth-3">Map Air Facilities</a></li><li id="main-menu-link-content51b14d27-a025-4fb5-82b5-9a20abbc3e84" class="sf-depth-3 sf-no-children"><a href="/trends/air-monitoring-stations" class="is-active sf-depth-3">ECHO Clean Air Tracking Tool (ECATT)</a></li></ul></li><li id="main-menu-link-content8d145819-0ed6-4f12-97b6-d2b398b57b87" class="sf-depth-2 menuparent"><span class="sf-depth-2 menuparent nolink">Wastewater/Stormwater/Biosolids (CWA)</span><ul><li id="main-menu-link-content16701670-d07a-4315-b58c-f34bef4c76af" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search?mediaSelected=cwa" class="sf-depth-3">Wastewater/Stormwater/Biosolids Facility Search</a></li><li id="main-menu-link-contentc70c8939-03f7-4f6e-a434-511a669d8dca" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search?mediaSelected=bio" class="sf-depth-3">Biosolids Facility Search</a></li><li id="main-menu-link-content9f4187c9-c500-4a49-ac20-a4f9696b543e" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search?mediaSelected=bioAnnual" class="sf-depth-3">Biosolids Annual Report Search</a></li><li id="main-menu-link-contente8d5e984-cce5-4c31-a8b6-b310d8d62092" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search?mediaSelected=msgp" class="sf-depth-3">Industrial Stormwater Facility Search</a></li><li id="main-menu-link-content2c9c3638-d0cd-4987-a2fa-6a088f1517c3" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search/results?mediaSelected=cwa" class="sf-depth-3">Map Water Facilities</a></li><li id="main-menu-link-content78817e3a-2e00-48e7-9b23-b7938edd7b0c" class="sf-depth-3 sf-no-children"><a href="/trends/loading-tool/water-pollution-search" title="" class="sf-depth-3">Water Pollutant Loading Tool</a></li><li id="main-menu-link-content00f3572c-fb38-48d6-9312-3c7b0db421bb" class="sf-depth-3 sf-no-children"><a href="/trends/npdes-dmr-non-receipt-status" title="" class="sf-depth-3">NPDES DMR Non-Receipt Status Search</a></li><li id="main-menu-link-content6007e2d0-9d74-4363-be1c-332fac83920f" class="sf-depth-3 sf-no-children"><a href="/facilities/npdes-noncompliance-search" class="sf-depth-3">Quarterly NPDES Noncompliance Report Search</a></li><li id="main-menu-link-content682fd404-cd0f-4766-84ed-2cc7b117c59d" class="sf-depth-3 sf-no-children"><a href="/npdes-noncompliance-annual-report" class="sf-depth-3">NPDES Noncompliance Annual Report</a></li></ul></li><li id="main-menu-link-content5526fa51-6a7f-41c9-bd3d-5bed934c422d" class="sf-depth-2 menuparent"><a href="/" title="" class="sf-depth-2 menuparent">Hazardous Waste</a><ul><li id="main-menu-link-content8d1e68c4-5300-4d47-91da-0b597ced3874" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search?mediaSelected=rcra" class="sf-depth-3">Hazardous Waste Facility Search</a></li><li id="main-menu-link-contentf75f1b03-54f1-47da-9c8e-212dc8399411" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search/results?mediaSelected=rcra" class="sf-depth-3">Map Hazardous Waste Facilities</a></li></ul></li><li id="main-menu-link-content900e0812-3d7d-4708-a38c-796ed591ef2b" class="sf-depth-2 menuparent"><a href="/" title="" class="sf-depth-2 menuparent">Drinking Water</a><ul><li id="main-menu-link-content80e91ff9-c51b-4d00-93b6-b79b5d4b4613" class="sf-depth-3 sf-no-children"><a href="/facilities/facility-search?mediaSelected=sdwa" class="sf-depth-3">Drinking Water System Search</a></li></ul></li></ul></li><li id="main-menu-link-contentdee47242-ae82-41ac-a261-922d41cd2a00" class="active-trail sf-depth-1 menuparent"><a href="/" title="" class="sf-depth-1 menuparent">Analyze Trends</a><ul><li id="main-menu-link-contentdfe8f512-3072-4a5f-8844-eb2eeb195c63" class="sf-depth-2 menuparent"><a href="/" title="" class="sf-depth-2 menuparent">Track Performance</a><ul><li id="main-menu-link-content52187ada-aced-4804-9e63-a115197f9e1d" class="sf-depth-3 sf-no-children"><a href="/trends/comparative-maps-dashboards/state-air-dashboard" class="sf-depth-3">EPA/State Dashboards (Air, Wastewater, Drinking Water, Hazardous Waste, Pesticides)</a></li><li id="main-menu-link-contentf21f9b42-6152-4235-916f-771e5e83e00d" class="sf-depth-3 sf-no-children"><a href="/trends/npdes-dmr-non-receipt-status" title="" class="sf-depth-3">NPDES DMR Non-Receipt Status Search</a></li><li id="main-menu-link-contentd9faa247-308b-4e7a-85d5-30f2fa7fdc6e" class="sf-depth-3 sf-no-children"><a href="/oversight/state-review-framework/tracker-recommendations" title="" class="sf-depth-3">State Review Framework Tracker Recommendations</a></li><li id="main-menu-link-content3c58dbb2-2fd0-4603-b95d-19edde1b4ca6" class="sf-depth-3 sf-no-children"><a href="/archived-tools" title="" class="sf-depth-3">Archived Tools</a></li></ul></li><li id="main-menu-link-content66311933-e1aa-472d-8954-51e94f98146f" class="sf-depth-2 menuparent"><a href="/" class="sf-depth-2 menuparent">Data Visualization</a><ul><li id="main-menu-link-content014a6dfc-8ee0-4372-aad2-ec3a6d31343d" class="sf-depth-3 sf-no-children"><a href="/trends/data-viz" class="sf-depth-3">Data Visualization Gallery</a></li><li id="main-menu-link-contente0b5b82b-7fd6-4984-94c3-d66dcd2a0a59" class="sf-depth-3 sf-no-children"><a href="/trends/npdes-erule-dashboard-public" class="sf-depth-3">NPDES eRule Readiness Dashboard</a></li><li id="main-menu-link-content581933f1-4e95-4c03-a2d4-d15f27baf37f" class="sf-depth-3 sf-no-children"><a href="/trends/pfas-tools" class="sf-depth-3">PFAS Analytic Tools</a></li><li id="main-menu-link-content51cc7eeb-dbf2-4ee4-b238-3901d437c2b9" class="sf-depth-3 sf-no-children"><a href="/trends/data-viz?filters=erule" class="sf-depth-3">NPDES eRule Dashboards</a></li><li id="main-menu-link-contentef529a3c-9e76-412d-bf72-7e0a30852299" class="sf-depth-3 sf-no-children"><a href="https://awsedap.epa.gov/public/extensions/Fenceline_Monitoring/Fenceline_Monitoring.html?sheet=facilitySnapshot" class="sf-depth-3 sf-external">Benzene Fenceline Monitoring</a></li></ul></li><li id="main-menu-link-content62389656-c4f1-4864-92c2-7bc4d5b6fccb" class="active-trail sf-depth-2 menuparent"><a href="/" class="sf-depth-2 menuparent">Pollution Analysis</a><ul><li id="main-menu-link-contentece03193-99a4-4a4a-aaa2-b45c06a842d6" class="sf-depth-3 sf-no-children"><a href="/trends/loading-tool/water-pollution-search" title="" class="sf-depth-3">Water Pollutant Loading Tool</a></li><li id="main-menu-link-contentdd0b0186-da49-4d48-a039-90b4c8a8c609" class="active-trail sf-depth-3 sf-no-children"><a href="/trends/air-monitoring-stations" class="is-active sf-depth-3">ECHO Clean Air Tracking Tool (ECATT)</a></li></ul></li></ul></li><li id="main-menu-link-contentd780676c-ecdd-4351-8dd2-124d0dbb7f10" class="sf-depth-1 menuparent"><a href="/" title="" class="sf-depth-1 menuparent">Find EPA Cases</a><ul><li id="main-menu-link-content4ac457b1-220a-4e93-98ad-bf167c6147a3" class="sf-depth-2 sf-no-children"><a href="/facilities/enforcement-case-search" title="" class="sf-depth-2">EPA Enforcement Case Search</a></li><li id="main-menu-link-contentd052b460-8b70-470e-9698-ca2fd0c774db" class="sf-depth-2 sf-no-children"><a href="/facilities/enforcement-case-search?srch=adv" title="" class="sf-depth-2">Advanced EPA Enforcement Case Search</a></li></ul></li><li id="main-menu-link-contentbf4afe68-f7aa-4600-844f-18d7c489cbdb" class="sf-depth-1 menuparent"><a href="/" title="" class="sf-depth-1 menuparent">Data Services</a><ul><li id="main-menu-link-content67a01d27-b6f1-4e7d-935d-d67ab2b0bfa4" class="sf-depth-2 sf-no-children"><a href="/tools/data-downloads" title="" class="sf-depth-2">National Data Sets</a></li><li id="main-menu-link-content63ca6ee4-b4ae-4704-af23-1344859df968" class="sf-depth-2 sf-no-children"><a href="/tools/data-downloads#exporter" class="sf-depth-2"> ECHO Exporter</a></li><li id="main-menu-link-contente8373103-795b-4c6e-8475-bf918034bbb5" class="sf-depth-2 sf-no-children"><a href="/tools/web-services" title="" class="sf-depth-2">ECHO Web Services</a></li><li id="main-menu-link-contented8bf3fe-37d5-45be-a182-76adcff02bb7" class="sf-depth-2 sf-no-children"><a href="/tools/map-service" title="" class="sf-depth-2">ECHO Map Services</a></li><li id="main-menu-link-contentbcb049e9-36ff-4c59-bcdb-4379267681fa" class="sf-depth-2 sf-no-children"><a href="/tools/quick-search-widget" class="sf-depth-2">Quick Search Widget</a></li></ul></li><li id="main-menu-link-contentc7efbc02-a9f8-4486-9db1-d830e71c8647" class="sf-depth-1 menuparent"><a href="/" title="" class="sf-depth-1 menuparent">Help</a><ul><li id="main-menu-link-content28850260-85c9-45e4-aef5-bd69b01d99d3" class="sf-depth-2 sf-no-children"><a href="/resources/echo-data/about-the-data" title="" class="sf-depth-2">About the Data</a></li><li id="main-menu-link-content64e0ee94-1100-4e6c-b60b-0ae76902f354" class="sf-depth-2 sf-no-children"><a href="/help/tutorials" title="ECHO Tutorials" class="sf-depth-2">ECHO Video Tutorials</a></li><li id="main-menu-link-contenta98cf620-e638-4c82-93d2-19b2043a681c" class="sf-depth-2 sf-no-children"><a href="/resources/general-info/learn-more-about-echo" title="" class="sf-depth-2">Quick Start Guide</a></li><li id="main-menu-link-content3c663a56-5c9d-49dc-bc1d-045478137b14" class="sf-depth-2 sf-no-children"><a href="/help/training" title="ECHO Training" class="sf-depth-2">ECHO Training</a></li><li id="main-menu-link-contentbeeb039f-202b-4f43-b2f3-b7792df2c847" class="sf-depth-2 menuparent"><a href="/" title="" class="sf-depth-2 menuparent">How to ...</a><ul><li id="main-menu-link-content77f7b6f4-7578-458d-8c60-c265ec8c0ba5" class="sf-depth-3 sf-no-children"><a href="/help/how-to-report-error" title="Report a Data Error" class="sf-depth-3">Report a Data Error</a></li><li id="main-menu-link-contente3c48dfd-adac-43fb-9bcc-8f29f07a5163" class="sf-depth-3 menuparent"><a href="/" title="Facility Search" class="sf-depth-3 menuparent">Run Facility Searches</a><ul><li id="main-menu-link-content61eb2e2a-c669-4dbe-843e-bc8d79121f6d" class="sf-depth-4 sf-no-children"><a href="/help/facility-search/facility-search-help" title="Facility Search Help" class="sf-depth-4">Facility Search Help</a></li><li id="main-menu-link-content11991343-af0f-4854-926d-e8f95b69fe26" class="sf-depth-4 sf-no-children"><a href="/help/facility-search/search-criteria-help" title="Facility Search Criteria Help" class="sf-depth-4">Facility Search Criteria Help</a></li><li id="main-menu-link-contentcb64039f-924b-4d43-b3a9-0b646b6558b0" class="sf-depth-4 sf-no-children"><a href="/help/facility-search/facility-search-results-help" title="Search Results Help" class="sf-depth-4">Search Results Help</a></li><li id="main-menu-link-content5abb9f52-e774-4a42-8937-fe437eaf6cf2" class="sf-depth-4 sf-no-children"><a href="/help/enforcement-case-search-help" title="Enforcement Case Search Help" class="sf-depth-4">Enforcement Case Search Help</a></li><li id="main-menu-link-content2a1f5d94-b460-4750-8ce1-12912a468424" class="sf-depth-4 sf-no-children"><a href="/help/corporate-compliance-screener/corporate-compliance-screener-help" title="" class="sf-depth-4">Corporate Compliance Screener Help</a></li></ul></li><li id="main-menu-link-content2df0856f-a839-4919-82b3-4ed82b28ad80" class="sf-depth-3 menuparent"><a href="/" title="Reports" class="sf-depth-3 menuparent">Use and Understand ECHO Reports</a><ul><li id="main-menu-link-content44b17cc4-9b75-40ab-8198-fb4edda4f7e5" class="sf-depth-4 sf-no-children"><a href="/help/reports/air-pollutant-report-help" title="Air Pollutant Report Help" class="sf-depth-4">Air Pollutant Report Help</a></li><li id="main-menu-link-content6585f150-46ad-4fa0-a7e5-33d1a05c4f2b" class="sf-depth-4 sf-no-children"><a href="/help/reports/ambient-monitoring-station-report-help" title="" class="sf-depth-4">Air Monitoring Station Report Help</a></li><li id="main-menu-link-contentf5620209-8557-45b7-9969-21da9f16c458" class="sf-depth-4 sf-no-children"><a href="/help/reports/biosolids-facility-report-help" title="" class="sf-depth-4">Biosolids Facility Report Help</a></li><li id="main-menu-link-content2a944250-1ffb-4adb-b751-1e4e7b7715a5" class="sf-depth-4 sf-no-children"><a href="/help/reports/detailed-facility-report-help" title="Detailed Facility Report Help" class="sf-depth-4">Detailed Facility Report Help</a></li><li id="main-menu-link-contentf8b14548-0e3e-430b-a675-bb9c2310ac4f" class="sf-depth-4 sf-no-children"><a href="/help/reports/enforcement-case-report-help" title="A description of the Enforcement Case Report" class="sf-depth-4">Civil Enforcement Case Report Help</a></li><li id="main-menu-link-content387c141d-766e-4dab-b08d-71758dc2db69" class="sf-depth-4 sf-no-children"><a href="/help/reports/criminal-case-report-help" title="" class="sf-depth-4">Criminal Enforcement Case Report Help</a></li><li id="main-menu-link-contentd15bc9e3-5861-4f27-b888-788d235a31d0" class="sf-depth-4 sf-no-children"><a href="/help/reports/effluent-charts-help" title="" class="sf-depth-4">Effluent Charts Help</a></li></ul></li><li id="main-menu-link-content4bc4c087-b321-49c7-bfcc-ee92456486f6" class="sf-depth-3 menuparent"><a href="/" title="Dashboards Help" class="sf-depth-3 menuparent">Use ECHO EPA/State Dashboards</a><ul><li id="main-menu-link-content2154fcdd-4cc8-4248-8385-f8910b41a1db" class="sf-depth-4 sf-no-children"><a href="/help/air-dashboard-help" title="Air Dashboard Help" class="sf-depth-4">Air Dashboard Help</a></li><li id="main-menu-link-contente566b60d-af9c-4e98-baea-7841a12bf8ef" class="sf-depth-4 sf-no-children"><a href="/help/pesticide-dashboard-help" title="Pesticide Dashboard Help" class="sf-depth-4">Pesticide Dashboard Help</a></li><li id="main-menu-link-content0e0ae48d-20cc-4e44-8d64-e9ce9905976e" class="sf-depth-4 sf-no-children"><a href="/help/state-comparative-maps-help" title="State Comparative Maps Help" class="sf-depth-4">State Comparative Maps Help</a></li></ul></li></ul></li><li id="main-menu-link-content5201296a-4f77-43b2-ab4f-a89f98a1c20d" class="sf-depth-2 menuparent"><a href="/" title="" class="sf-depth-2 menuparent">General Information</a><ul><li id="main-menu-link-content4177439e-4543-4980-9860-770273a4f4bf" class="sf-depth-3 sf-no-children"><a href="/resources/general-info/whats-new" title="" class="sf-depth-3">What's New</a></li><li id="main-menu-link-content6c93dfde-d715-4a2d-913d-e47705efa3eb" class="sf-depth-3 sf-no-children"><a href="/resources/echo-data/known-data-problems" title="Known Data Problems" class="sf-depth-3">Known Data Problems</a></li><li id="main-menu-link-content6f398fa8-606b-410e-acb1-81ee7080c5f5" class="sf-depth-3 sf-no-children"><a href="/resources/general-info/tool-guide" title="" class="sf-depth-3">ECHO Tool Guide</a></li><li id="main-menu-link-content5033cf98-3b48-4f59-ad1c-1f3f647ed003" class="sf-depth-3 sf-no-children"><a href="/resources/general-info/echo-faq" title="Frequently Asked Questions" class="sf-depth-3">Frequently Asked Questions</a></li><li id="main-menu-link-content0f907c17-96c4-42ba-82a6-01f73e8250ae" class="sf-depth-3 sf-no-children"><a href="/resources/echo-site-map" title="ECHO Site Map" class="sf-depth-3">ECHO Site Map</a></li><li id="main-menu-link-contentddd63b62-d717-47b2-b70e-75e5f7bfa35e" class="sf-depth-3 sf-no-children"><a href="/report-environmental-violations" title="Report Environmental Violations" class="sf-depth-3">Report A Violation</a></li><li id="main-menu-link-content96eded93-0fd9-444b-b388-125a58de3a77" class="sf-depth-3 sf-no-children"><a href="/resources/general-info/website-known-issues" title="Website Known Issues" class="sf-depth-3">Website Known Issues</a></li><li id="main-menu-link-contentb45bc0b3-bf8b-4c61-85d8-6b3488883623" class="sf-depth-3 sf-no-children"><a href="/resources/general-info/listserv" title="" class="sf-depth-3">Join the ECHO Listserv</a></li><li id="main-menu-link-content73a57e1d-2ba5-4764-a565-7b380e1f0833" class="sf-depth-3 sf-no-children"><a href="/resources" title="" class="sf-depth-3">Other Available Resources</a></li></ul></li><li id="main-menu-link-content0c82aeec-8530-43ac-89fc-07306b51ec57" class="sf-depth-2 menuparent"><a href="/" title="" class="sf-depth-2 menuparent">Get Access</a><ul><li id="main-menu-link-content2ba57853-0396-4b76-bb10-b07ce5a6b8a6" class="sf-depth-3 sf-no-children"><a href="/help/login-and-access" title="" class="sf-depth-3">Login and Access</a></li></ul></li></ul></li> </ul> </div>  <div id="log"> <span> </span> </div> <ul id="mainLinks"> <li> <a href="/resources/general-info/contact-us" data-drupal-link-system-path="node/550">Contact Us</a> </li> <li> <a href="https://echo.epa.gov/saml/login?ReturnTo=https%3A%2F%2Fecho.epa.gov%2Fnode%2F540%3Fcheck_logged_in%3D1" data-drupal-link-system-path="user/login">Login</a> </li> </ul> </header> <div> <div id="block-echo-breadcrumbs"> <nav class="usa-breadcrumb" role="navigation" aria-labelledby="system-breadcrumb"> <ol class="usa-breadcrumb__list" itemscope itemtype="http://schema.org/BreadcrumbList"> <li class="usa-breadcrumb__list-item " itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"> <a class="usa-breadcrumb__link" itemscope itemtype="http://schema.org/Thing" itemprop="item" href="/"> <span itemprop="name">Home</span> </a> <meta itemprop="position" content="1" /> </li> <li class="usa-breadcrumb__list-item " itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"> <a class="usa-breadcrumb__link" itemscope itemtype="http://schema.org/Thing" itemprop="item" href="/trends"> <span itemprop="name">Trends</span> </a> <meta itemprop="position" content="2" /> </li> <li class="usa-breadcrumb__list-item usa-current" itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"> <span itemprop="name">ECATT Air Monitoring Stations</span> <meta itemprop="position" content="3" /> </li> </ol> </nav> </div> <div data-drupal-messages-fallback class="hidden"></div> </div> <div> <div id="block-echo-page-title"> <h1> <span>ECHO Clean Air Tracking Tool - Air Monitoring Stations</span> </h1> </div> <div id="block-echo-echo-system-main"> <article data-history-node-id="540" about="/trends/air-monitoring-stations"> <div> <div><div class="box box--related-info u-align-right clear-right"><h2 class="box__title">Related Links</h2><div class="box__content"><ul><li><a href="https://echo.epa.gov/help/ecatt" target="_blank">ECATT Help Documentation</a></li><li><a href="https://echo.epa.gov/help/ecatt/air-monitoring-station-data-calculations" target="_blank">AMS Data Calculation Methodology</a></li><li><a href="https://echo.epa.gov/resources/echo-data/about-the-data" target="_blank">About the Data</a></li><li><a href="https://echo.epa.gov/help/ecatt/ams-search-guidance" target="_blank">Example AMS search scenarios</a></li><li><a href="https://echo.epa.gov/help/tutorials#ecatt" target="_blank"><img src="https://echo.epa.gov/themes/custom/echo/images/tutorial_icon.png" data-entity-uuid data-entity-type alt="Tutorials" width="35" height="14" loading="lazy"> </a> <a href="https://echo.epa.gov/help/tutorials#ecatt" target="_blank">AMS Search Tutorial</a></li></ul></div></div><p>The ECHO Clean Air Tracking Tool (ECATT) is a US EPA interface and repository for Clean Air Act data that can be used to evaluate emissions at stationary sources of air pollution and analyze general air quality.</p><p>The <strong>Air Monitoring Station</strong> (AMS) search provides data about U.S. air monitoring stations that measure ambient or outdoor concentrations of <abbr title="HAPs, also known as toxic air pollutants, are those pollutants that are known or suspected to cause cancer, other serious health effects (including reproductive effects or birth defects), or adverse environmental effects. HAPs data are sourced from EPA's Ambient Monitoring Archive (AMA). The search includes measurement data since 2008.">Hazardous Air Pollutants (HAPs)</abbr> and <abbr title="CAPs are six common air pollutants (particulate matter, ground-level ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead), that have National Ambient Air Quality Standards (NAAQS) set by the Clean Air Act. CAPs data are sourced from the Air Quality System (AQS), which contains ambient air pollution data collected by air pollution control agencies. The search includes measurement data since 2010.">Criteria Air Pollutants (CAPs)</abbr>. The search can be used to identify areas with high pollutant concentrations and higher potential for health impacts and identify the facilities emitting in those areas. Read more about <a href="https://www.epa.gov/haps" target="_blank">HAPs</a> and <a href="https://www.epa.gov/criteria-air-pollutants" target="_blank">CAPs</a>.</p><p>The AMS search also incorporates <a href="https://www.epa.gov/AirToxScreen" target="_blank">AirToxScreen</a> modeled data so users can identify areas with elevated cancer risk or higher potential for other health impacts and compare those areas to nearby emissions concentrations measured by air monitors to identify potential risk hotspots. Users can screen facilities for further evaluation by identifying measured pollutant concentrations larger than the modeled amount.</p><div><ul class="tabs dmr-tab-container"><li class="active"><a href="https://echo.epa.gov/trends/air-monitoring-stations">Air Monitoring Stations</a></li><li><a href="https://echo.epa.gov/trends/emission-screener">Emission Screener</a></li></ul></div></div> <div class="custom-application-content"> <div class="custom-application-content"> <div id="echo-react-app"></div> </div> <form name="searchFormSubmitx" id="searchFormSubmitx" action="/trends/air-monitoring-stations/results" method="post"> <input type="hidden" id="req" name="req" value=" "/> <input type="hidden" id="searchText" name="searchText" value=""/> <div id="mainInner"> <div id="col-large"> <div class="tools"> <a href="#" class="moreSearch iconLess advSearchLink" id="advSearchLink"> View Advanced Search Options </a> <a href="#" class="expandSearch">Expand All</a> <a href="#" class="collapseSearch">Collapse All</a> </div> <div id="searchForm" class="caseSearch"> <div class="section ec pane0 icon-search-type"> <h2><a href="#">Search Type</a></h2> <div class="pane clearfix">  <div class="formRow select "> <label for="p_srch_type">Choose Search Type </label> <select id="p_srch_type" name="p_srch_type" class="select" > <option value="HAP" >Hazardous Air Pollutants</option> <option value="CAP" >Criteria Air Pollutants</option> </select> </div> <div class="tools"> <a href="/trends/air-monitoring-stations/results?p_srch_type=HAP" class="quickMap HAP">Go Directly to Ambient Monitoring Stations Map</a>  </div> </div> </div> <div class="section ec pane1 icon-map"> <h2><a href="#">Geographic Location</a></h2> <div class="pane clearfix"> <a href="#" class="moreSearch iconLess advSearchLink" id="location--adv">Basic View</a> <span class="HAP"> <div class="errorMsg"> <p>There are <span>0</span> errors in the section, highlighted below.</p> </div> <a href="/help/ecatt/ambient-monitoring-station-search-criteria-help#geoloc" class="help" target="_blank"> <img src="/themes/custom/echo/images/enf-case-search/icon-help-ECRpane2.png" alt="Click for help"></a> </span> <span class="CAP"> <div class="errorMsg"> <p>There are <span>0</span> errors in the section, highlighted below.</p> </div> <a href="/help/ecatt/air-monitoring-station-caps-search-criteria-help#geoloc" class="help" target="_blank"> <img src="/themes/custom/echo/images/enf-case-search/icon-help-ECRpane2.png" alt="Click for help"></a> </span> <div id="location-only__container"> <div id="p_latlong__container" class="HAP"> <div class="formRow text HAP location--location-only"> <label for="p_lat">Latitude (Example 35.1789)</label> <input type="text" class="text" id="p_lat" name="p_lat" maxlength="100" > </div> <div class="formRow text HAP location--location-only"> <label for="p_long">Longitude (Example -147.25687)</label> <input type="text" class="text" id="p_long" name="p_long" maxlength="100" > </div> <div class="formRow"> <label> <a href="#" class="myLocation">Use My Location</a> || <a href="https://geocoding.geo.census.gov/geocoder/locations/address?form" target="_blank">Latitude/Longitude Lookup</a> <a class="exit-disclaimer" href="https://www.epa.gov/home/exit-epa" title="EPA's External Link Disclaimer" target="_blank">Exit</a> </label> </div> <div class="formRow slider"> <label> Latitude/Longitude Search Radius </label>  <div class="slider-container"> <div id="p_radiusSlider" class="slider"></div> <div style="display:inline-block;" id="p_radiusSlider__Label"> <input style="padding-top:7px;" class="justText leftTextWide" type="hidden" id="p_radiusy" name="p_radiusy" value="" readonly disabled/> </div> </div> </div> <input type='hidden' id='p_radius' name='p_radius' value='1' disabled /> <input type='hidden' id='facWithin' name='facWithin' value='' /> </div> <div id="p_zip__container">  <div class="formRow text location--location-only"> <label for="p_zip">Zip Code</label> <input type="text" class="text" id="p_zip" name="p_zip" maxlength="100" > </div> </div> <div id="p_reg__container"> <div class="formRow select location--location-only"> <label for="p_reg">EPA Region<br />  </label> <select id="p_reg" name="p_reg" class="select" > <option value="" >All Regions</option> <option value="01" >01</option> <option value="02" >02</option> <option value="03" >03</option> <option value="04" >04</option> <option value="05" >05</option> <option value="06" >06</option> <option value="07" >07</option> <option value="08" >08</option> <option value="09" >09</option> <option value="10" >10</option> </select> <br /> <label><a href="#" class="epa-regional-map__overlay-link">View EPA regional map</a></label> </div> </div> <div id="p_rpo__container"> <div class="formRow select location--location-only advSearch location--adv"> <label for="p_rpo">Regional Planning Organization (RPO) </label> <select id="p_rpo" name="p_rpo" class="select" > <option value="" >All RPOs</option> </select> <br /> <label><a href="#" class="rpo-map__overlay-link">View RPO map</a></label> </div> </div> <div id="p_st__container"> <div class="formRow select location--location-only"> <label for="p_st">State </label> <select id="p_st" name="p_st" class="select" > </select> </div> <div class="formRow select location--location-only"> <label for="p_fips">County </label> <select id="p_fips" name="p_fips" class="select" > <option value="" >Select a State</option> </select> </div> <div class="formRow text location--location-only"> <label for="p_ct">City</label> <input type="text" class="text" id="p_ct" name="p_ct" maxlength="100" > </div> </div> <div id="p_tdl_container"> <div class="formRow select location--location-only"> <label for="p_tribedist">Located on Tribal Land </label> <select id="p_tribedist" name="p_tribedist" class="select" > <option value="" >No Restrictions</option> <option value="0" >On Tribal Land</option> <option value="1" >Within 1 mile</option> <option value="5" >Within 5 miles</option> <option value="10" >Within 10 miles</option> <option value="25" >Within 25 miles</option> </select> </div> </div> <div id="p_lt_container"> <div class="formRow select location--location-only"> <label for="p_loc">Location Type </label> <select id="p_loc" name="p_loc" class="select" > <option value="" >No Restrictions</option> <option value="met" >Metropolitan Area</option> <option value="mic" >Micropolitan Area</option> <option value="rur" >Rural Area</option> </select> </div> </div> <div id="p_monloc5km_container"> <div class="formRow radio HAP advSearch location--adv" id="p_rcra_5km"> <fieldset class="radiogroup"> <legend> Monitored location within 5km of RCRA <abbr title="Large Quantity Generator">LQG</abbr> or <abbr title="Treatment, Storage and Disposal Facility">TSDF</abbr> </legend> <ul class="radioselect"> <li> <label for="p_rcra_5kmNR"> <input type="radio" name="p_rcra_5km" id="p_rcra_5kmNR" value="NR" checked="checked" > No Restrictions </label> </li> <li> <label for="p_rcra_5kmY"> <input type="radio" name="p_rcra_5km" id="p_rcra_5kmY" value="Y" > Yes </label> </li> <li> <label for="p_rcra_5kmN"> <input type="radio" name="p_rcra_5km" id="p_rcra_5kmN" value="N" > No </label> </li> </ul> </fieldset> </div> </div> <div id="p_sc__container">  <div class="formRow text advSearch location--adv"> <label for="p_site_code"> <span class="siteCodeLabel">AMA Site Code(s)</span> <a class="infobox help cboxElement HAP" target="_blank" href="#amaSiteCodeCaveat"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt="More Info"/> </a> <a class="infobox help cboxElement CAP" target="_blank" href="#aqsSiteCodeCaveat"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt="More Info"/> </a> </label> <fieldset> <textarea class="text textChange" id="p_site_code" name="p_site_code"></textarea> <div class="CAP"> <label><span class="boldText">AQS Site Code</span> = State Code + County Code + Site Code</label> </div> </fieldset> </div> </div> </div> <div class="advSearch location--adv noMagnifyingGlass"> <div class="formRow"> <h3 class="advSearch location--adv" >Nonattainment Area <a class="infobox help cboxElement" target="_blank" href="#nonattainmentAreaCaveat"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt="More Info"/> </a> </h3> </div> <div class="formRow radio " id="p_naa_located"> <fieldset class="radiogroup"> <legend> Monitor located in Nonattainment Area </legend> <ul class="radioselect"> <li> <label for="p_naa_locatedNR"> <input type="radio" name="p_naa_located" id="p_naa_locatedNR" value="NR" checked="checked" > No Restrictions </label> </li> <li> <label for="p_naa_locatedN"> <input type="radio" name="p_naa_located" id="p_naa_locatedN" value="N" > No </label> </li> <li> <label for="p_naa_locatedNA"> <input type="radio" name="p_naa_located" id="p_naa_locatedNA" value="NA" > In Nonattainment Area </label> </li> <li> <label for="p_naa_locatedMA"> <input type="radio" name="p_naa_located" id="p_naa_locatedMA" value="MA" > In Nonattainment or Maintenance Area </label> </li> </ul> </fieldset> </div> <div class="formRow select multiple naa__container"> <label for="p_naa_pol[]">Pollutant </label> <select id="p_naa_pol" name="p_naa_pol[]" class="select" multiple > <option value="NR" >No Restrictions</option> <option value="ANY" >Any Pollutant</option> <option value="CO" >Carbon Monoxide</option> <option value="PB" >Lead</option> <option value="NOX" >Nitrogen Oxides</option> <option value="OZO" >Ozone</option> <option value="SO2" >Sulfur Dioxide</option> <option value="PM25" >PM 2.5</option> <option value="PM10" >PM 10</option> </select> </div> <div class="formRow select multiple naa__container"> <label for="p_naa_cl[]">Classification </label> <select id="p_naa_cl" name="p_naa_cl[]" class="select" multiple > <option value="NR" >No Restrictions</option> <option value="ANY" >Any Nonattainment</option> <option value="EXT" disabled>Extreme</option> <option value="FS1" disabled>Former Subpart 1</option> <option value="MOD" disabled>Moderate</option> <option value="MAR" disabled>Marginal</option> <option value="MG127" disabled>Moderate > 12.7ppm</option> <option value="ML127" disabled>Moderate <= 12.7ppm</option> <option value="SER" disabled>Serious</option> <option value="SV15" disabled>Severe-15</option> <option value="SV17" disabled>Severe-17</option> <option value="SUMR" disabled>Submarginal</option> <option value="TRS" disabled>Transitional (Section 185A)</option> </select> </div> <div class="formRow text "> <label for="p_pd">Population Density Greater than (per sq. mile)</label> <input type="text" class="text" id="p_pd" name="p_pd" maxlength="100" > </div> </div> </div> </div> <div class="section ec pane6 icon-community"> <h2><a href="#">Community</a></h2> <div class="pane clearfix"> <span class='HAP'> <div class="errorMsg"> <p>There are <span>0</span> errors in the section, highlighted below.</p> </div> <a href="/help/ecatt/ambient-monitoring-station-search-criteria-help#community" class="help" target="_blank"> <img src="/themes/custom/echo/images/icon-help3.png" alt="Click for help"></a> </span> <span class='CAP'> <div class="errorMsg"> <p>There are <span>0</span> errors in the section, highlighted below.</p> </div> <a href="/help/ecatt/air-monitoring-station-caps-search-criteria-help#community" class="help" target="_blank"> <img src="/themes/custom/echo/images/icon-help3.png" alt="Click for help"></a> </span> <div class="formRow"> <span>Environmental Justice</span> <div class="formRow radio slider" > <div id='p_ejscreen_over80cntRadio'> <fieldset class="radiogroup"> <legend> <span> EJScreen Indexes At or Above 80th Percentile <a href='#ejAtOrAboveCaveat' class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </span> </legend> <ul class="radioselect"> <li> <label for="p_ejscreen_over80cntRadioNR"> <input type="radio" name="p_ejscreen_over80cntRadio" id="p_ejscreen_over80cntRadioNR" value="NR" checked="checked" />  No Restrictions </label> </li> <li> <label for="p_ejscreen_over80cntRadioY"> <input type="radio" name="p_ejscreen_over80cntRadio" id="p_ejscreen_over80cntRadioY" value="Y" />  Yes </label> </li> <li> <label for="p_ejscreen_over80cntRadioN"> <input type="radio" name="p_ejscreen_over80cntRadio" id="p_ejscreen_over80cntRadioN" value="N" />  No </label> </li> </ul> </fieldset> <div id='p_ejscreen_compareRadio'> <fieldset class="radiogroup"> <legend> <span> Compare to <a href='#ejCompareToCaveat' class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </span> </legend> <ul class="radioselect"> <li> <label for="p_ejscreen_compareRadioUS"> <input type="radio" disabled name="p_ejscreen_compareRadio" id="p_ejscreen_compareRadioUS" value="US" checked="checked" />  US </label> </li> <li> <label for="p_ejscreen_compareRadioST"> <input type="radio" disabled name="p_ejscreen_compareRadio" id="p_ejscreen_compareRadioST" value="ST" />  State </label> </li> </ul> </fieldset> </div> <div id='p_ejscreen_basedRadio'> <fieldset class="radiogroup"> <legend> <span> Based on <a href='#ejBasedOnCaveat' class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </span> </legend> <ul class="radioselect"> <li> <label for="p_ejscreen_basedRadioBG"> <input type="radio" disabled name="p_ejscreen_basedRadio" id="p_ejscreen_basedRadioBG" value="BG" checked="checked" />  Block Group </label> </li> <li> <label for="p_ejscreen_basedRadioMM"> <input type="radio" disabled name="p_ejscreen_basedRadio" id="p_ejscreen_basedRadioMM" value="MM" />  1-Mile Maximum </label> </li> </ul> </fieldset> </div> <div id='p_ejscreen_indexRadio'> <fieldset class="radiogroup"> <legend> <span> Index Type <a href='#ejIndexTypeCaveat' class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </span> </legend> <ul class="radioselect"> <li> <label for="p_ejscreen_indexRadioEJ"> <input type="radio" disabled name="p_ejscreen_indexRadio" id="p_ejscreen_indexRadioEJ" value="EJ" />  Environmental Justice </label> </li> <li> <label for="p_ejscreen_indexRadioSP"> <input type="radio" disabled name="p_ejscreen_indexRadio" id="p_ejscreen_indexRadioSP" value="SP" checked="checked"/>  Supplemental </label> </li> </ul> </fieldset> </div> <fieldset class="radiogroup"> <legend> <span> Count of Indexes </span> </legend>  <div class="slider-container"> <div id="p_ejscreen_over80cntRadioSlider" class="slider"></div> <div style="display:inline-block;" id="p_ejscreen_over80cntRadioSlider__Label"> <input style="padding-top:7px;" class="justText leftTextWide" type="hidden" id="p_ejscreen_over80cntRadioy" name="p_ejscreen_over80cntRadioy" value="" readonly disabled/> </div> </div> </div> <input type='hidden' id='p_ejscreen_over80cnt' name='p_ejscreen_over80cnt' value='' /> <input type='hidden' id='p_ejscreen' name='p_ejscreen' value='' /> <input type='hidden' id='p_ejscreen_st' name='p_ejscreen_st' value='' /> <input type='hidden' id='p_ejscreen_over80cnt_st' name='p_ejscreen_over80cnt_st' value='' /> <input type='hidden' id='p_mile80cnt_us' name='p_mile80cnt_us' value='' /> <input type='hidden' id='p_mile80cnt_st' name='p_mile80cnt_st' value='' /> <input type='hidden' id='p_ejscreen_sup' name='p_ejscreen_sup' value='' /> <input type='hidden' id='p_ejscreen_st_sup' name='p_ejscreen_st_sup' value='' /> <input type='hidden' id='p_ejscreen_over80cnt_sup' name='p_ejscreen_over80cnt_sup' value='' /> <input type='hidden' id='p_ejscreen_over80cnt_st_sup' name='p_ejscreen_over80cnt_st_sup' value='' /> <input type='hidden' id='p_mile80cnt_us_sup' name='p_mile80cnt_us_sup' value='' /> <input type='hidden' id='p_mile80cnt_st_sup' name='p_mile80cnt_st_sup' value='' /> </fieldset> </div> </div> <div class="formRow divider"></div> <div class="formRow"> <span>Demographics</span> <div class="formRow select "> <label for="p_pm">Percent People of Color (3-mile radius) </label> <select id="p_pm" name="p_pm" class="select" > <option value="" >No Restrictions</option> <option value="5" >>5%</option> <option value="10" >>10%</option> <option value="25" >>25%</option> <option value="50" >>50%</option> <option value="75" >>75%</option> </select> </div> <div class="formRow select "> <label for="p_pctlowinc">Percent Low Income (3-mile radius) </label> <select id="p_pctlowinc" name="p_pctlowinc" class="select" > <option value="" >No Restrictions</option> <option value="5" >≥5</option> <option value="10" >≥10</option> <option value="25" >≥25</option> <option value="50" >≥50</option> <option value="75" >≥75</option> </select> </div> </div> </div> </div> <div class="section ec pane2 icon-risk-level"> <h2 class="HAP"><a href="#">Monitored Risk Level</a></h2> <h2 class="CAP"><a href="#">Monitored Concentrations</a></h2> <div class="pane clearfix"> <a href="#" class="moreSearch iconLess advSearchLink" id="monitored--adv">Basic View</a> <span class="HAP"> <div class="errorMsg"> <p>There are <span>0</span> errors in the section, highlighted below.</p> </div> <a href="/help/ecatt/ambient-monitoring-station-search-criteria-help#pollutant" class="help" target="_blank"> <img src="/themes/custom/echo/images/icon-help5.png" alt="Click for help"></a> </span> <span class="CAP"> <div class="errorMsg"> <p>There are <span>0</span> errors in the section, highlighted below.</p> </div> <a href="/help/ecatt/air-monitoring-station-caps-search-criteria-help#pollutant" class="help" target="_blank"> <img src="/themes/custom/echo/images/icon-help5.png" alt="Click for help"></a> </span> <h3>Ambient Air Quality Monitoring</h3>  <div class="formRow select "> <label for="p_year">Choose a Timeframe <span class="HAP"> <a href="#timeframeCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </span> </label> <select id="p_year" name="p_year" class="select" > </select> </div>  <div class="formRow radio HAP advSearch monitored--adv" id="p_annual_comp"> <fieldset class="radiogroup"> <legend> Define Year as <a href="#defineYearAsCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt="Define Years As Information"> </a> </legend> <ul class="radioselect"> <li> <label for="p_annual_compY"> <input type="radio" name="p_annual_comp" id="p_annual_compY" value="Y" checked="checked" > Best Rolling 12-Months of Data </label> </li> <li> <label for="p_annual_compN"> <input type="radio" name="p_annual_comp" id="p_annual_compN" value="N" > Calendar Year </label> </li> </ul> </fieldset> </div> <div class="formRow divider"></div> <div class="formRow radio HAP" id="p_poll_agg"> <fieldset class="radiogroup"> <legend>   </legend> <ul class="radioselect"> <li> <label for="p_poll_aggY"> <input type="radio" name="p_poll_agg" id="p_poll_aggY" value="Y" checked="checked" > Aggregate of All Pollutants </label> </li> <li> <label for="p_poll_aggN"> <input type="radio" name="p_poll_agg" id="p_poll_aggN" value="N" > Single Pollutant </label> </li> </ul> </fieldset> </div> <div class="formRow select HAP"> <label for="p_name">Pollutant Name </label> <select id="p_name" name="p_name" class="select" data-chosen="1" > <option value="" >Select Pollutant</option> </select> </div> <div class="formRow select CAP"> <label for="p_aqs_poll">Pollutant Name </label> <select id="p_aqs_poll" name="p_aqs_poll" class="select" data-chosen="1" > <option value="" >Select Pollutant</option> </select> </div> <div class="formRow select CAP"> <label for="p_std">Pollutant Standard </label> <select id="p_std" name="p_std" class="select" data-chosen="1" > <option value="" >Select Pollutant</option> </select> </div> <div class="formRow select HAP advSearch monitored--adv"> <label for="p_cas">Chemical Abstract Service (CAS) Number <a href="#casCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </label> <select id="p_cas" name="p_cas" class="select" > <option value="" >Select Pollutant</option> </select> </div> <div class="formRow radio CAP advSearch monitored--adv" id="p_naaq_std"> <fieldset class="radiogroup"> <legend> NAAQ Standard <a href="#naaqStandardCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </legend> <ul class="radioselect"> <li> <label for="p_naaq_stdP"> <input type="radio" name="p_naaq_std" id="p_naaq_stdP" value="P" checked="checked" > Primary </label> </li> <li> <label for="p_naaq_stdS"> <input type="radio" name="p_naaq_std" id="p_naaq_stdS" value="S" > Secondary </label> </li> <li> <label for="p_naaq_stdNR"> <input type="radio" name="p_naaq_std" id="p_naaq_stdNR" value="NR" > No Restrictions </label> </li> </ul> </fieldset> </div> <div class="formRow radio " id="p_trend"> <fieldset class="radiogroup"> <legend> Air Concentration Trend </legend> <ul class="radioselect"> <li> <label for="p_trendNR"> <input type="radio" name="p_trend" id="p_trendNR" value="NR" checked="checked" > No Restrictions </label> </li> <li> <label for="p_trendINC"> <input type="radio" name="p_trend" id="p_trendINC" value="INC" > Increasing </label> </li> <li> <label for="p_trendDEC"> <input type="radio" name="p_trend" id="p_trendDEC" value="DEC" > Decreasing </label> </li> </ul> </fieldset> </div> <div class="formRow divider advSearch monitored--adv noMagnifyingGlass"></div> <div class="formRow select CAP advSearch monitored--adv"> <label for="p_naaq_comp">Comparison to NAAQS </label> <select id="p_naaq_comp" name="p_naaq_comp" class="select" disabled > <option value="" >No Restrictions</option> <option value="B" >Below</option> <option value="A" >Above</option> </select> </div> <div class="formRow select CAP advSearch monitored--adv"> <label for="p_naaq_exceed">Number of NAAQS Exceedances </label> <select id="p_naaq_exceed" name="p_naaq_exceed" class="select" > <option value="" >No Restrictions</option> <option value="1" >>0</option> <option value="2" >>2</option> <option value="3" >>5</option> <option value="4" >>10</option> </select> </div> <div class="formRow select short HAP advSearch monitored--adv"> <label for="p_poll_cancer">Average Long-Term Cancer Risk Level <a href="#averageLongTermCancerRiskCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </label> <span class="input-pre select--pre">>=</span> <select id="p_poll_cancer" name="p_poll_cancer" class="select" > <option value="" >No Restrictions</option> <option value="5" >5</option> <option value="10" >10</option> <option value="25" >25</option> <option value="50" >50</option> <option value="100" >100</option> </select> <span class="input-post select--post">(people in a million)</span> </div> <div class="formRow select double select-double HAP advSearch monitored--adv"> <label for="p_poll_haz"> Hazard Quotient Level <a href="#hazardQuotientLevelCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </label> <select id="p_poll_haz" name="p_poll_haz" class="select select-double"> <option value="" >No Restrictions</option> </select> <span class="input-pre text--pre">>=</span> <select name="p_poll_haz_amt" id="p_poll_haz_amt" class="double select-double short" disabled="true"> <option value="" >No Restrictions</option> <option value="0.01" >0.01</option> <option value="0.1" >0.1</option> <option value="0.5" >0.5</option> <option value="1" >1</option> <option value="2" >2</option> <option value="5" >5</option> </select> </div> <div class="formRow radio HAP advSearch monitored--adv" id="p_compare"> <fieldset class="radiogroup"> <legend> Compare to Modeled Ambient Concentrations <a href="#compareAmbientToModeledCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </legend> <ul class="radioselect"> <li> <label for="p_compareY"> <input type="radio" name="p_compare" id="p_compareY" value="Y" > Yes </label> </li> <li> <label for="p_compare"> <input type="radio" name="p_compare" id="p_compare" value="" checked="checked" > No </label> </li> </ul> </fieldset> </div> <div class="formRow select indented HAP advSearch monitored--adv"> <label for="p_compare_amt">75% of ambient daily average measurements reported are </label> <span class="input-pre select--pre">>=</span> <select id="p_compare_amt" name="p_compare_amt" class="select" disabled > <option value="" >N/A</option> <option value="2" >2</option> <option value="10" >10</option> <option value="100" >100</option> <option value="1000" >1000</option> <option value="10000" >10000</option> </select> <span class="input-post select--post">times the modeled values</span> </div> <div class="formRow select HAP advSearch monitored--adv"> <label for="p_nd">Set Non-Detects Equal To <a href="#nonDetectsCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </label> <select id="p_nd" name="p_nd" class="select" > <option value="ROS" >Use Regression Method</option> <option value="ZERO" >Zero</option> <option value="HALF" >½ Detection Limit</option> </select> </div> <div class="formRow radio HAP advSearch monitored--adv" id="p_nd_pct__container"> <input name="p_nd_pct" id="p_nd_pct" type="checkbox" value="80" > <label for="p_nd_pct">Exclude Results with More Than 80% Non-Detects</label> </div> </div> </div> <div class="section ec pane3 icon-factory HAP"> <h2><a href="#">Modeled Risk Screening</a></h2> <div class="pane clearfix"> <div class="errorMsg"> <p>There are <span>0</span> errors in the section, highlighted below.</p> </div> <a href="/help/ecatt/ambient-monitoring-station-search-criteria-help#model" class="help" target="_blank"> <img src="/themes/custom/echo/images/icon-help4.png" alt="Click for help"></a> <legend class="bold">2019 AirToxScreen <a class="infobox help cboxElement" target="_blank" href="#airToxScreenCaveat"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt="More Info"/> </a> </legend> <div class="nata-section" data-nata-section="no-restrictions"> <div class="formRow radio-header nata__subheader"> <legend> <input type="radio" name="nata-subheader" value="no_restrictions" checked="1" >  No Restrictions </legend> </div> </div> <div class="nata-section disabled" data-nata-section="nata_long_term_cancer_risk_level"> <div class="formRow radio-header nata__subheader disabled"> <legend> <input type="radio" name="nata-subheader" value="nata_long_term_cancer_risk_level" >  Air Toxics Cancer Risk Level (in a million) <a href="#airToxicsCancerRiskLevelCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </legend> </div> <div class="formRow radio " id="p_nata_agg"> <fieldset class="radiogroup"> <legend>   </legend> <ul class="radioselect"> <li> <label for="p_nata_aggY"> <input type="radio" name="p_nata_agg" id="p_nata_aggY" value="Y" checked="checked" disabled> Aggregate of All Pollutants </label> </li> <li> <label for="p_nata_aggN"> <input type="radio" name="p_nata_agg" id="p_nata_aggN" value="N" disabled> Single Pollutant </label> </li> </ul> </fieldset> </div> <div class="formRow select double select-double"> <label for="p_nata_cancer"> Cancer Risk <a href="#cancerRiskTypesCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </label> <select id="p_nata_cancer" name="p_nata_cancer" class="select select-double"> </select> <span class="input-pre text--pre">>=</span> <select name="p_nata_cancer_amt" id="p_nata_cancer_amt" class="double select-double short" disabled="true"> <option value="" >No Restrictions</option> <option value="1" >1</option> <option value="5" >5</option> <option value="10" >10</option> <option value="25" >25</option> <option value="50" >50</option> <option value="100" >100</option> </select> </div> <div class="formRow select "> <label for="p_nata_poll_cancer">Pollutant </label> <select id="p_nata_poll_cancer" name="p_nata_poll_cancer" class="select" > <option value="" >Any Single Pollutant</option> </select> </div> </div> <div class="nata-section disabled" data-nata-section="nata_hazard_quotient_level"> <div class="formRow radio-header nata__subheader disabled"> <legend> <input type="radio" name="nata-subheader" value="nata_hazard_quotient_level" >  Air Toxics Respiratory Hazard Index <a href="#hazardQuotientAndIndexCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </legend> </div> <div class="formRow radio " id="p_nata_agg_hl"> <fieldset class="radiogroup"> <legend>   </legend> <ul class="radioselect"> <li> <label for="p_nata_agg_hlY"> <input type="radio" name="p_nata_agg_hl" id="p_nata_agg_hlY" value="Y" checked="checked" disabled> Hazard Index (Aggregate) </label> </li> <li> <label for="p_nata_agg_hlN"> <input type="radio" name="p_nata_agg_hl" id="p_nata_agg_hlN" value="N" disabled> Hazard Quotient (Single Pollutant) </label> </li> </ul> </fieldset> </div> <div class="formRow select double select-double"> <label for="p_nata_quot"> Target System <a href="#targetSystemCaveat" class="infobox help"> <img src="/themes/custom/echo/images/search_results_i_icon.png" alt=""> </a> </label> <select id="p_nata_quot" name="p_nata_quot" class="select select-double"> <option value="" >No Restrictions</option> </select> <span class="input-pre text--pre">>=</span> <select name="p_nata_quot_amt" id="p_nata_quot_amt" class="double select-double short" disabled="true"> </select> </div> <div class="formRow select "> <label for="p_nata_poll">Pollutant </label> <select id="p_nata_poll" name="p_nata_poll" class="select" disabled > <option value="" >Any Single Pollutant</option> </select> </div> </div> </div> </div> </div> </div> <div id="col-small"> <div class="tools">  <a href="/related-tools" class="relatedTools infobox">Related Tools</a> <a href="/help/ecatt/search-help#search" class="helpSearch" target="_blank">Help</a> </div> <div id="selections" class="tiled clearfix"> <h2> Search Criteria Selected <a href="#" class="inlineClearSearch"><img src="/themes/custom/echo/images/icon-clear-white.png" alt=""></a> </h2> <div class="inner"> <div id="selection0" class="selections"> <h3>Search Type</h3> <div class="selection p_srch_type"> <span> </span> </div> </div> <div id="selection1" class="selections"> <h3>Geographic Location</h3> <div class="selection facWithin"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Facilities within selection."> </a> Facilities within<br /> <span> </span> </div> <div class="selection p_zip"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear ZIP Code selection."> </a> ZIP Code<br /> <span> </span> </div> <div class="selection p_reg"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear EPA Region selection."> </a> EPA Region<br /> <span> </span> </div> <div class="selection p_rpo"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Regional Planning Office selection."> </a> Regional Planning Office<br /> <span> </span> </div> <div class="selection p_st"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear State selection."> </a> State<br /> <span> </span> </div> <div class="selection p_fips"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear County selection."> </a> County<br /> <span> </span> </div> <div class="selection p_ct"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear City selection."> </a> City<br /> <span> </span> </div> <div class="selection p_tribedist"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Located on Tribal Land selection."> </a> Located on Tribal Land<br /> <span> </span> </div> <div class="selection p_loc"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Location Type selection."> </a> Location Type<br /> <span> </span> </div> <div class="selection p_rcra_5km"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Monitored location within 5km of <br/>RCRA <abbr title="Large Quantity Generator">LQG</abbr> or <abbr title="Treatment, Storage and Disposal Facility">TSDF</abbr> selection."> </a> Monitored location within 5km of <br/>RCRA <abbr title="Large Quantity Generator">LQG</abbr> or <abbr title="Treatment, Storage and Disposal Facility">TSDF</abbr><br /> <span> </span> </div> <div class="selection p_site_code HAP"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear AMA Site Code(s) selection."> </a> AMA Site Code(s)<br /> <span> </span> </div> <div class="selection p_site_code CAP"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear AQS Site Code(s) selection."> </a> AQS Site Code(s)<br /> <span> </span> </div> <div class="selection p_naa_located"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Monitor located in Nonattainment Area selection."> </a> Monitor located in Nonattainment Area<br /> <span> </span> </div> <div class="selection p_naa_pol"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Nonattainment Area Pollutant selection."> </a> Nonattainment Area Pollutant<br /> <span> </span> </div> <div class="selection p_naa_sev"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Nonattainment Area Severity selection."> </a> Nonattainment Area Severity<br /> <span> </span> </div> <div class="selection p_naa_cl"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Nonattainment Area Classification selection."> </a> Nonattainment Area Classification<br /> <span> </span> </div> <div class="selection p_naa_pol_cor"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Monitored Pollutants Correspond to Nonattainment selection."> </a> Monitored Pollutants Correspond to Nonattainment<br /> <span> </span> </div> <div class="selection p_pd"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Population Density Greater than selection."> </a> Population Density Greater than<br /> <span> </span> </div> </div> <div id="selection6" class="selections"> <h3>Community</h3> <div class="selection p_ejscreen_over80cntRadio"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear EJScreen Indexes At or Above 80th Percentile selection."> </a> EJScreen Indexes At or Above 80th Percentile<br /> <span> </span> </div> <div class="selection p_ejscreen_compareRadio"> <a href="#"> </a> Compare To<br /> <span> </span> </div> <div class="selection p_ejscreen_basedRadio"> <a href="#"> </a> Based On<br /> <span> </span> </div> <div class="selection p_ejscreen_indexRadio"> <a href="#"> </a> Index Type<br /> <span> </span> </div> <div class="selection p_pm"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Percent People of Color (3-mile radius) selection."> </a> Percent People of Color (3-mile radius)<br /> <span> </span> </div> <div class="selection p_pctlowinc"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Percent Low Income (3-mile radius) selection."> </a> Percent Low Income (3-mile radius)<br /> <span> </span> </div> </div> <div id="selection2" class="selections"> <h3 class="HAP">Monitored Risk Level</h3> <h3 class="CAP">Monitored Concentrations</h3> <div class="selection p_annual_comp"> Define Year as<br /><span> </span> </div> <div class="selection p_year"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Timeframe selection."> </a> Timeframe<br /> <span> </span> </div> <div class="selection p_poll_agg"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear selection."> </a> <span> </span> </div> <div class="selection p_name"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Pollutant Name selection."> </a> Pollutant Name<br /> <span> </span> </div> <div class="selection p_aqs_poll"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Pollutant Name selection."> </a> Pollutant Name<br /> <span> </span> </div> <div class="selection p_std"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Pollutant Standard selection."> </a> Pollutant Standard<br /> <span> </span> </div> <div class="selection p_cas"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear CAS Number selection."> </a> CAS Number<br /> <span> </span> </div> <div class="selection p_naaq_std"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear NAAQ Standard selection."> </a> NAAQ Standard<br /> <span> </span> </div> <div class="selection p_trend"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Air Concentration Trend selection."> </a> Air Concentration Trend<br /> <span> </span> </div> <div class="selection p_naaq_comp"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Comparison to NAAQS selection."> </a> Comparison to NAAQS<br /> <span> </span> </div> <div class="selection p_naaq_exceed"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Number of NAAQS Exceedances selection."> </a> Number of NAAQS Exceedances<br /> <span> </span> </div> <div class="selection p_poll_cancer"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Average Long-Term Cancer Risk Level selection."> </a> Average Long-Term Cancer Risk Level<br /> <span> </span> </div> <div class="selection p_poll_haz"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Hazard Quotient Level: Target System selection."> </a> Hazard Quotient Level: Target System<br /> <span> </span> </div> <div class="selection p_poll_haz_amt"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Hazard Quotient Level: >= selection."> </a> Hazard Quotient Level: >=<br /> <span> </span> </div> <div class="selection p_compare"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Compare to Modeled Ambient Concentrations selection."> </a> Compare to Modeled Ambient Concentrations<br /> <span> </span> </div> <div class="selection p_compare_amt"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 75% of ambient daily average measurements reported are >= [] times the modeled values selection."> </a> 75% of ambient daily average measurements reported are >= [] times the modeled values<br /> <span> </span> </div> <div class="selection p_nd"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Set Non-Detects Equal To selection."> </a> Set Non-Detects Equal To<br /> <span> </span> </div> <div class="selection p_nd_pct"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear Exclude Results with More Than 80% Non-Detects selection."> </a> Exclude Results with More Than 80% Non-Detects<br /> <span> </span> </div> </div> <div id="selection3" class="selections"> <h3>Modeled Risk Screening</h3> <div class="selection p_nata_agg"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 2019 AirToxScreen Long-Term Cancer Risk Level: Aggregate selection."> </a> 2019 AirToxScreen Long-Term Cancer Risk Level: Aggregate<br /> <span> </span> </div> <div class="selection p_nata_cancer"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 2019 AirToxScreen Long-Term Cancer Risk Level: Cancer Risk selection."> </a> 2019 AirToxScreen Long-Term Cancer Risk Level: Cancer Risk<br /> <span> </span> </div> <div class="selection p_nata_cancer_amt"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 2019 AirToxScreen Long-Term Cancer Risk Level: >= selection."> </a> 2019 AirToxScreen Long-Term Cancer Risk Level: >=<br /> <span> </span> </div> <div class="selection p_nata_poll_cancer"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 2019 AirToxScreen Long-Term Cancer Risk Level: Pollutant selection."> </a> 2019 AirToxScreen Long-Term Cancer Risk Level: Pollutant<br /> <span> </span> </div> <div class="selection p_nata_agg_hl"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 2019 AirToxScreen Hazard Level: selection."> </a> 2019 AirToxScreen Hazard Level: <br /> <span> </span> </div> <div class="selection p_nata_quot"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 2019 AirToxScreen Hazard Level: Target System selection."> </a> 2019 AirToxScreen Hazard Level: Target System<br /> <span> </span> </div> <div class="selection p_nata_quot_amt"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 2019 AirToxScreen Hazard Level >= selection."> </a> 2019 AirToxScreen Hazard Level >=<br /> <span> </span> </div> <div class="selection p_nata_poll"> <a href="#"> <img src="/themes/custom/echo/images/icon-delete.png" alt="Clear 2019 AirToxScreen Hazard Level: Pollutant selection."> </a> 2019 AirToxScreen Hazard Level: Pollutant<br /> <span> </span> </div> </div> </div> <div class="search"> <input type="submit" class="searchSubmit" value="Search"> </div> </div> </div> </div> <input type="hidden" name="csrf_token" value="T9ZgsMdL0ndpKi9_3H2ZX1s5FCzD2DpSWsUZmhdeHo0"> </form> <div style="display:none;"> <div id="defineYearAsCaveat" class="overBoxBlue"> <h2>Define Year As Information</h2> <p>"Define Year As" allows you to select either the "Best Rolling 12 Months of Data" or "Calendar Year." EPA established the following criteria to select the Best Rolling 12 Months of Data to represent annual concentrations:</p> <ul> <li>The annual data set must comprise at least three valid quarters of data; and</li> <li>Valid quarters must have at least 70% of expected measurements for a pollutant.</li> </ul> <p>See the <a href="https://echo.epa.gov/help/ecatt/air-monitoring-station-data-calculations" rel="noopener noreferrer" target="_blank">Air Monitoring Station Data Rules and Calculations page</a> for more information.</p> </div> <div id="timeframeCaveat" class="overBoxBlue"> <h2>Ambient Pollutant Measurement Timeframe</h2> </div> <div id="naaqStandardCaveat" class="overBoxBlue"> <h2>NAAQ Standard Information</h2> <p>"NAAQ Standard" allows you to select only the Primary pollutant standard, only the Secondary pollutant standard, or not specify by selecting "No Restrictions." EPA established the following criteria to define the two standards:</p> <ul> <li>Primary standards provide public health protection, including protecting the health of "sensitive" populations such as asthmatics, children, and the elderly.</li> <li>Secondary standards provide public welfare protection, including protection against decreased visibility and damage to animals, crops, vegetation, and buildings.</li> </ul> <p>See the <a href="https://www.epa.gov/criteria-air-pollutants/naaqs-table" target="_blank">EPA NAAQS Table</a> for more information.</p> </div> <div id='ejAtOrAboveCaveat' class='overBoxBlue'> <h2>EJScreen Indexes for Air Monitoring Stations</h2> <p>Select air monitoring stations located in areas with an 80th or higher percentile of one or more of the supplemental indexes of EJScreen, EPA's screening tool for environmental justice (EJ) concerns. EPA uses these indexes to identify geographic areas that may warrant further consideration or analysis for potential EJ concerns.</p> <p>Note that use of this criterion does not designate an area as an "EJ community" or "EJ facility." EJScreen provides screening level indicators, not a determination of the existence or absence of EJ concerns. For more information, see the <a href="https://www.epa.gov/ejscreen" target="_blank">EJScreen home page</a>.</p> </div> <div id='ejIndexTypeCaveat' class='overBoxBlue'> <h2>EJScreen Indexes: Index Type</h2> <p>Select from two methodologies for <a href="https://www.epa.gov/ejscreen/ej-and-supplemental-indexes-ejscreen">calculating EJScreen indexes</a>. The indexes are a combination of environmental and socioeconomic information.</p><p>The Supplemental Index uses a five-factor demographic index that averages Percent Low Income , Percent Persons with Disabilities, Percent Limited English Speaking, Percent Less than High School Education, and Low Life Expectancy.</p><p>The Environmental Justice Index uses a two-factor demographic index that averages Percent Low Income and Percent People of Color.</p> </div> <div id='ejBasedOnCaveat' class='overBoxBlue'> <h2>EJScreen Indexes: Based On</h2> <p>This option selects whether the EJScreen index percentiles of a facility are calculated based on a facility’s Census block group or 1-mile maximum. The default is Census block group.</p> </div> <div id='ejCompareToCaveat' class='overBoxBlue'> <h2>EJScreen Indexes: Compare To</h2> <p>This option selects whether national percentiles or state percentiles are used when determining if a location has one or more of EJScreen's indexes at or above the 80th percentile. The default is national percentiles.</p> </div> <div id="amaSiteCodeCaveat" class="overBoxBlue"> <h2>AMA Site Code</h2> <p>The <strong>Ambient Monitoring Archive (AMA) Site Code</strong> identifies a unique Ambient Monitoring Station (AMS). Search for multiple IDs by using a comma-separated list. </p> </div> <div id="aqsSiteCodeCaveat" class="overBoxBlue"> <h2>AQS Site Code</h2> <p>The <strong>AQS Site Code</strong> is a 9-digit unique identifier for the air monitoring station, created based on the combination of the State code + County code + Site Code. For example: 06 (state code) + 073 (county code) + 1201 (site code) = 060731201.</p> <p>Site codes are unique for stations within a county. If only a site code is provided, ECATT will display all air monitoring stations with that site code. Similarly, ECATT will display all air monitoring stations within the state or county if only a state or county code is given respectively. You can search for multiple IDs by using a comma-separated list.</p> </div> <div id="nonattainmentAreaCaveat" class="overBoxBlue"> <h2>Nonattainment Area</h2> <p> A nonattainment area is an area that does not meet one or more of the National Ambient Air Quality Standards (NAAQS) for six commonly found air pollutants ("criteria pollutants") designated in the Clean Air Act: particle pollution (often referred to as particulate matter), ground-level ozone, carbon monoxide, sulfur oxides, nitrogen oxides, and lead.</p> <p>Nonattainment areas are given a classification based on the severity of the violation and the type of air quality standard they exceed. </p> </div> <div id="casCaveat" class="overBoxBlue"> <h2>Chemical Abstract Service (CAS) Number</h2> <p>A Chemical Abstract Service (CAS) number is a number assigned by the American Chemical Society that uniquely identifies a chemical.</p> </div> <div id="averageLongTermCancerRiskCaveat" class="overBoxBlue"> <h2>Average Long-Term Cancer Risk Level</h2> <p>A risk level of “N”-in-1 million implies a likelihood that up to “N” people, out of one million equally exposed people would contract cancer if exposed continuously (24 hours per day) to the specific average concentration over 70 years (an assumed lifetime). This would be in addition to those cancer cases that would normally occur in an unexposed population of one million people.</p> <p>When the pollutant selected is "Aggregate Pollutants" this searches for the cumulative risk for all monitored pollutants at a station. This search option allows users to identify areas of potential cancer risk and is not intended to provide a comparison between stations, as stations may monitor for different numbers and types of pollutants.</p> </div> <div id="hazardQuotientLevelCaveat" class="overBoxBlue"> <h2>Hazard Quotient Level</h2> <p>Search for monitors measuring air pollutant concentrations exceeding a specific hazard quotient level. Select a specific target organ or organ system and a hazard quotient level of 1, 2, 10, 25, 50 or 100. Hazard quotient indicates the ratio of the potential exposure to an air pollutant and the level at which no adverse effects are expected. A hazard quotient less than or equal to 1 indicates that adverse effects are not likely to occur, and thus can be considered to have negligible hazard.</p> </div> <div id="compareAmbientToModeledCaveat" class="overBoxBlue"> <h2>Compare Ambient Daily Average Measurements to Modeled Concentrations</h2> <p>Select "Yes" to compare the monitored pollutant concentrations to <a href="https://www.epa.gov/AirToxScreen/airtoxscreen-frequent-questions" target="_blank">AirToxScreen </a>modeled pollutant concentrations. Set a factor to compare 75% of ambient daily average pollutant measurements against the modeled values.  </p> </div> <div id="nonDetectsCaveat" class="overBoxBlue"> <h2>Non-Detection Methods</h2> <p>When a pollutant concentration is reported as "not detected," its actual concentration may be zero or some value between zero and the detection limit. The user can choose to calculate the average pollutant concentration using one of three methods: setting all non-detects to zero, setting all non-detects to ½ the detection limit, or using the regression method. By default, non-detects are set to use regression method. See the <a href="https://echo.epa.gov/help/ecatt/air-monitoring-station-data-calculations" target="_blank">Air Monitoring Station Data Rules and Calculations</a> for more information. </p> </div> <div id="airToxScreenCaveat" class="overBoxBlue"> <h2>Modeled Risk Screening</h2> <p>AirToxScreen is EPA's comprehensive evaluation of air toxics in the United States, based on modeled air quality. These activities include the expansion of air toxics monitoring, improvement and periodic updating of emission inventories, improvement of national- and local-scale modeling, continued research on health effects and exposures to both ambient and indoor air, and improvement of assessment tools. AirToxScreen provides a snapshot of the outdoor air quality and the risks to human health that would result if air toxic emission levels remained unchanged. More information on AirToxScreen can be found on the <a href="https://www.epa.gov/AirToxScreen/airtoxscreen-frequent-questions" target="_blank">EPA AirToxScreen Frequently Asked Questions</a> page.</p> </div> <div id="airToxicsCancerRiskLevelCaveat" class="overBoxBlue"> <h2>Air Toxics Cancer Risk Level</h2> <p>A risk level of “N”-in-1 million implies a likelihood that up to “N” people, out of one million equally exposed people would contract cancer if exposed continuously (24 hours per day) to the specific concentration over 70 years (an assumed lifetime). This would be in addition to those cancer cases that would normally occur in an unexposed population of one million people. Note that this assessment looks at lifetime cancer risks, which should not be confused with or compared to annual cancer risk estimates. If you would like to compare an annual cancer risk estimate with the results in this assessment, you would need to multiply that annual estimate by a factor of 70 or alternatively divide the lifetime risk by a factor of 70.</p> <p>Select a Pollutant through the lookup. Then select a Cancer Risk and risk level. For example, searching on "Formaldehyde" and "Background > 25" will return ambient emission stations where the cancer risk level for the pollutant is greater than 25 in 1 million.</p> </div> <div id="cancerRiskTypesCaveat" class="overBoxBlue"> <h2>Cancer Risk Types</h2> <ul> <li><strong>Background </strong>– Background pollution that exists in the air that does not come from a specific source. These pollutants may come from a natural source or from distance sources.  Background concentrations can explain pollutant concentrations found even without recent human-caused emissions.</li> <li><strong>Biogenics </strong>– Natural sources of emissions, which include trees, plants and soil microbes.</li> <li><strong>Fires </strong>– Emissions from fires that do not include residential wood combustion.</li> <li><strong>Non-point</strong> – Non-point sources from the National Emissions Inventory (NEI) (<a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">https://www.epa.gov/air-emissions-inventories/national-emissions-invent…</a>) that have geographic coordinates present in the NEI and emit at least one hazardous air pollutant. Non-point sources in the NEI are individually too small in magnitude to report as point sources.  These emissions sources are included in the NEI as a county total or tribal total (for participating tribes).  Examples include residential heating, commercial combustion, asphalt paving, and commercial and consumer solvent use.</li> <li><strong>Non-Road</strong> – Mobile sources used on roads and highways for transportation of passengers or freight. On-road sources include: <ul> <li>passenger cars and trucks;</li> <li>commercial trucks and buses; and</li> <li>motorcycles</li> </ul> </li> <li><strong>On Road</strong> – Mobile sources used on roads and highways for transportation of passengers or freight. On-road sources include: <ul> <li>passenger cars and trucks;</li> <li>commercial trucks and buses; and</li> <li>motorcycles</li> </ul> </li> <li><strong>Point </strong>– Point sources from the National Emissions Inventory (NEI) (<a href="https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei">https://www.epa.gov/air-emissions-inventories/national-emissions-invent…</a>) that have geographic coordinates present in the NEI and emit at least one hazardous air pollutant. Point sources in the NEI include large industrial facilities and electric power plants, airports, and smaller industrial, non-industrial and commercial facilities.  A small number of portable sources such as some asphalt or rock crushing operations are also included.</li> <li><strong>Residential Wood</strong> – Residential wood heating, which include wood stoves and fireplaces. This source is separate from Fires due to the temporalization of this source, since the amount of wood burnt depends on the daily temperature.</li> <li><strong>Secondary Formation</strong> – Pollutants formed by atmospheric transformation, which is the process by which chemicals are transformed into other chemicals in the air (atmosphere). When a chemical is transformed the original pollutant no longer exists; it is replaced by one or more new chemicals. Compared to the original chemical, the transformed chemical(s) can have more, less or the same toxicity. <br>  </li> </ul> </div> <div id="hazardQuotientAndIndexCaveat" class="overBoxBlue"> <h2>Air Toxics Hazard Quotient and Hazard Index</h2> <p><strong>Hazard Quotient</strong> indicates the ratio of the potential exposure to an air pollutant and the level at which no adverse effects are expected for an organ or organ system. A hazard quotient less than or equal to 1 indicates that adverse effects are not likely to occur, and thus can be considered to have negligible hazard.</p> <p><strong>Hazard Index</strong> is the sum of hazard quotients for substances that affect the same target organ or organ system. Because different air toxics can cause similar adverse health effects, combining hazard quotients from different toxics is often appropriate. A hazard index (HI) of 1 or lower means air toxics are unlikely to cause adverse noncancer health effects over a lifetime of exposure. </p> </div> <div id="targetSystemCaveat" class="overBoxBlue"> <h2>Target System</h2> <p>The target organ or organ system affected by the Hazard Quotient or Hazard Index. For example, searching on "Respiratory System > 2" will return the ambient monitoring stations located in areas where the hazard quotient or hazard index level is greater than 2.</p> <p>Selecting Hazard Quotient and a Single Pollutant restricts the list of target systems to those affected by the pollutant.</p> </div> </div> </div> </div> </article> </div> </div> </article> </div> </div> </main>  <div class="text-right padding-right-3 padding-bottom-1 epa-footer"> <a href="#" class="top-of-page" title=""> <svg role="img" aria-label="Top of page"> <use href="/themes/custom/epa_uswds/images/sprite.artifact.svg#arrow"></use> </svg> <span> Top of Page </span> </a> </div> <footer class="footer epa-footer" role="contentinfo"> <div class="l-constrain"> <img class="footer__epa-seal" src="https://www.epa.gov/themes/epa_theme/images/epa-seal.svg" alt="United States Environmental Protection Agency" height="100" width="100"> <div class="footer__content contextual-region"> <div class="footer__column"> <h2>Discover.</h2> <ul class="menu menu--footer"> <li class="menu__item"> <a href="https://www.epa.gov/accessibility" class="menu__link">Accessibility</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/planandbudget" class="menu__link">Budget & Performance</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/contracts" class="menu__link">Contracting</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/home/wwwepagov-snapshots" class="menu__link">EPA www Web Snapshots</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/grants" class="menu__link">Grants</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/ocr/whistleblower-protections-epa-and-how-they-relate-non-disclosure-agreements-signed-epa-employees" class="menu__link">No FEAR Act Data</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/privacy" class="menu__link">Privacy</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/privacy/privacy-and-security-notice" class="menu__link">Privacy and Security Notice</a> </li> </ul> </div> <div class="footer__column"> <h2>Connect.</h2> <ul class="menu menu--footer"> <li class="menu__item"> <a href="https://www.data.gov/" class="menu__link">Data.gov<svg class="icon icon--exit is-spaced-before" role="img"><title>Exit EPA’s Website</title><use href="/themes/custom/epa_uswds/images/sprite.svg#launch"></use></svg></a> </li> <li class="menu__item"> <a href="https://www.epa.gov/office-inspector-general/about-epas-office-inspector-general" class="menu__link">Inspector General</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/careers" class="menu__link">Jobs</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/newsroom" class="menu__link">Newsroom</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/data" class="menu__link">Open Government</a> </li> <li class="menu__item"> <a href="https://www.regulations.gov/" class="menu__link">Regulations.gov<svg class="icon icon--exit is-spaced-before" role="img"><title>Exit EPA’s Website</title><use href="/themes/custom/epa_uswds/images/sprite.svg#launch"></use></svg></a> </li> <li class="menu__item"> <a href="https://www.epa.gov/newsroom/email-subscriptions-epa-news-releases" class="menu__link">Subscribe</a> </li> <li class="menu__item"> <a href="https://www.usa.gov/" class="menu__link">USA.gov<svg class="icon icon--exit is-spaced-before" role="img"><title>Exit EPA’s Website</title><use href="/themes/custom/epa_uswds/images/sprite.svg#launch"></use></svg></a> </li> <li class="menu__item"> <a href="https://www.whitehouse.gov/" class="menu__link">White House<svg class="icon icon--exit is-spaced-before" role="img"><title>Exit EPA’s Website</title><use href="/themes/custom/epa_uswds/images/sprite.svg#launch"></use></svg></a> </li> </ul> </div> <div class="footer__column"> <h2>Ask.</h2> <ul class="menu menu--footer"> <li class="menu__item"> <a href="https://www.epa.gov/aboutepa/forms/contact-epa" class="menu__link">Contact EPA</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/web-policies-and-procedures/epa-disclaimers" class="menu__link">EPA Disclaimers</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/aboutepa/epa-hotlines" class="menu__link">Hotlines</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/foia" class="menu__link">FOIA Requests</a> </li> <li class="menu__item"> <a href="https://www.epa.gov/aboutepa/frequent-questions-specific-epa-programstopics" class="menu__link">Frequent Questions</a> </li> </ul> <h2>Follow.</h2> <ul class="menu menu--social"> <li class="menu__item"> <a class="menu__link" aria-label="EPA’s Facebook" href="https://www.facebook.com/EPA"> <svg class="icon icon--social" aria-hidden="true"><use href="/themes/custom/epa_uswds/images/sprite.artifact.svg#facebook-square"></use></svg> </a> </li> <li class="menu__item"> <a class="menu__link" aria-label="EPA’s Twitter" href="https://twitter.com/epa"> <svg class="icon icon--social" aria-hidden="true"><use href="/themes/custom/epa_uswds/images/sprite.artifact.svg#twitter-square"></use></svg> </a> </li> <li class="menu__item"> <a class="menu__link" aria-label="EPA’s Youtube" href="https://www.youtube.com/user/USEPAgov"> <svg class="icon icon--social" aria-hidden="true"><use href="/themes/custom/epa_uswds/images/sprite.artifact.svg#youtube-square"></use></svg> </a> </li> <li class="menu__item"> <a class="menu__link" aria-label="EPA’s Flickr" href="https://www.flickr.com/photos/usepagov"> <svg class="icon icon--social" aria-hidden="true"><use href="/themes/custom/epa_uswds/images/sprite.artifact.svg#flickr-square"></use></svg> </a> </li> <li class="menu__item"> <a class="menu__link" aria-label="EPA’s Instagram" href="https://www.instagram.com/epagov"> <svg class="icon icon--social" aria-hidden="true"><use href="/themes/custom/epa_uswds/images/sprite.artifact.svg#instagram-square"></use></svg> </a> </li> </ul> <p class="footer__last-updated">Last updated on June 6, 2024</p> <p class="data-refresh-information"><a href="/resources/echo-data/about-the-data#sources">Data Refresh Information</a></p> </div> </div> </div> </footer> </div> <script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","pathPrefix":"","currentPath":"node\/540","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"en"},"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"superfish":{"superfish-main":{"id":"superfish-main","sf":{"animation":{"opacity":"show","height":"show"},"speed":"fast"},"plugins":{"smallscreen":{"mode":"window_width","title":"Main menu"},"supposition":true,"supersubs":{"maxWidth":18}}}},"echoAuth":{"loginUrl":"https:\/\/echo.epa.gov\/saml\/login","logoutUrl":"https:\/\/echo.epa.gov\/echoauth\/logout","redirectParm":"ReturnTo","passiveLoginParm":"IsPassive=true","sessionRenewalInterval":60,"inactivityTimeout":900,"inactivityWarningTime":60,"csrfToken":"HDyx--bBjgHY7g1AFBlWOdk9yi1cNm1oFXuy5Bhmx6U"},"user":{"uid":0,"permissionsHash":"bfcf218e3995934b015518ade7dfe37259bfc57699bc30e9d320d09049fb5019"},"echo":{"environment":{"name":"prod","type":"prod","isLab":false,"useStagingServices":false},"settings":{"credentials":{"document_upload":{"host":"https:\/\/tvzzvni6f9.execute-api.us-east-1.amazonaws.com\/echo-docs\/"}}},"user":{"email":null,"hasEnforcementSensitiveRole":false,"hasEpaRole":false,"hasGovernmentRole":false},"path":{"theme":"\/themes\/custom\/echo"}}}</script> <script src="/files/js/js_GxNrIKmwe5MuSEbp8Wzfa5-X7u4mkERJTqPMu3LcqGk.js?scope=footer&delta=0&language=en&theme=echo&include=eJx1j1EOwzAIQy_UKUeKaMYWpBQQkJ5_WRftK_2z_BC2sVRJ7yY7tIcXIw3fcHgZVBsVCBLORTiQY979OA4WCQ7PjmClXm46kZ9ivnlXtBd5TX-Vq5xodH1acj-gtdEBkde8q4rTt9EdR_O-L9PnqB51rvgAcs1j6Q"></script> </body> </html>

CINXE.COM

ECHO Clean Air Tracking Tool - Air Monitoring Stations | ECHO | US EPA