{"id":722,"date":"2016-10-12T19:58:48","date_gmt":"2016-10-12T19:58:48","guid":{"rendered":"http:\/\/crp.trb.org\/acrp0331\/?page_id=722"},"modified":"2016-10-20T17:46:22","modified_gmt":"2016-10-20T17:46:22","slug":"air-quality","status":"publish","type":"page","link":"https:\/\/crp.trb.org\/acrpwebresource1\/air-quality\/","title":{"rendered":"Air Quality"},"content":{"rendered":"<h1>Air Quality<\/h1>\n<div class=\"col-md-12 col-lg-8\">\n<p>Routine airport operations, maintenance and on-site development projects can generate air emissions and <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Greenhouse Gases&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">GHGs<\/span>.  Understanding how airport activities produce air emissions and <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Greenhouse Gases&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">GHGs<\/span> will provide a firm foundation for conversations about air quality on and near your airport.<\/p>\n<p>Air emissions are produced by either mobile or stationary sources:<\/p>\n<ul>\n<li><span style=\"font-weight: bold\">Mobile sources<\/span> emit air pollutants as result of fuel combustion. Common mobile sources associated with airports include aircraft, transportation vehicles (e.g., shuttles and cars), <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Ground Support Equipment&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">GSE<\/span>, <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Auxiliary Power Units&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">APUs<\/span>, and construction equipment.<\/li>\n<li><span style=\"font-weight: bold\">Stationary sources<\/span> emit air pollutants as a product of either fuel combustion from fixed sources or through the evaporation of fuels and chemicals during refueling, storage, and maintenance practices. Examples of stationary sources at airports include fuel tanks, refueling facilities, emergency generators, boilers, space heaters, paint booths, and deicing facilities.<\/li>\n<\/ul>\n<p><span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Greenhouse Gases&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">GHGs<\/span> are various gaseous compounds, such as carbon dioxide, that absorb infrared radiation, trap heat in the atmosphere, and contribute to the greenhouse effect\/global climate change. Aviation is responsible for approximately three percent of all <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Greenhouse Gas&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">GHG<\/span> emissions in the United States. The portion of <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Greenhouse Gas&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">GHG<\/span> emissions that an airport operator may be able to manage is that produced by the facilities over which the airport manager has control (i.e., owns and operates), such as stationary sources (boilers, generators, etc.) and airport vehicles. Emissions produced by airport-owned or airport-operated facilities are referred to as Scope 1 or direct emissions. Emissions sources that an airport operator cannot manage or control include those from off-site stationary sources (e.g., power plants), aircraft, and tenant activities (referred to as Scope 2 and 3 emissions).<\/p>\n<p>Some air pollutants emitted by mobile and stationary sources are governed by federal regulations. A <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Greenhouse Gas&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">GHG<\/span> reporting rule has been established by the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Environmental Protection Agency&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">EPA<\/span> for facilities that emit 25,000 metric tons or more of <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Carbon Dioxide equivalent&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">CO2e<\/span> annually. Refer to Chapter 3, Air Quality, of <a target=\"_blank\" href=\"http:\/\/onlinepubs.trb.org\/onlinepubs\/acrp\/acrp_rpt_043.pdf\"><span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Airport Cooperative Research Program&lt;\/div&gt;\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">ACRP<\/span> Report 43 <i>Guidebook of Practices for Improving Environmental Performance at Small Airports<\/i><\/a> for an extensive discussion of jurisdictional authority and a summary of applicable air quality regulations.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Air Quality Routine airport operations, maintenance and on-site development projects can generate air emissions and GHGs. Understanding how airport activities produce air emissions and GHGs will provide a firm foundation for conversations about air quality on and near your airport. Air emissions are produced by either mobile or stationary sources: Mobile sources emit air pollutants &hellip; <a href=\"https:\/\/crp.trb.org\/acrpwebresource1\/air-quality\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Air Quality&#8221;<\/span><\/a><\/p>\n","protected":false},"author":26,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-resources-template.php","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-722","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/pages\/722","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/comments?post=722"}],"version-history":[{"count":4,"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/pages\/722\/revisions"}],"predecessor-version":[{"id":1344,"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/pages\/722\/revisions\/1344"}],"wp:attachment":[{"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/media?parent=722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/categories?post=722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crp.trb.org\/acrpwebresource1\/wp-json\/wp\/v2\/tags?post=722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}