{"id":865,"date":"2014-05-07T22:13:40","date_gmt":"2014-05-07T22:13:40","guid":{"rendered":"http:\/\/www.atmos.washington.edu\/~thornton"},"modified":"2015-03-06T23:12:40","modified_gmt":"2015-03-06T23:12:40","slug":"pnnl-2014","status":"publish","type":"page","link":"https:\/\/www.atmos.washington.edu\/~thornton\/field-campaigns\/pnnl-2014","title":{"rendered":"PNNL 2014"},"content":{"rendered":"<p>Atmospheric chemical models generally underestimate the SOA burden. One reason may be that laboratory derived SOA yields from VOC oxidation represent a lower limit. We probed the photo-oxidation of isoprene at the Pacific Northwest National Laboratory (PNNL) Atmospheric Measurement Laboratory (AML) in collaboration with <span style=\"text-decoration: underline;\"><a title=\"John Shilling\" href=\"http:\/\/www.pnl.gov\/atmospheric\/staff\/staff_info.asp?staff_num=7232\" target=\"_blank\">John Shilling<\/a><\/span>. The chamber experiments were conducted in steady state mode to determine how SOA yields and the yields of their semi-volatile gaseous precursors change with varying levels of NO<sub>x<\/sub>. The HR-ToF-CIMS was instrumented with the FIGAERO inlet to measure the chemical composition in both the gas and particle phases.<\/p>\n<figure id=\"attachment_868\" aria-describedby=\"caption-attachment-868\" style=\"width: 225px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-868 \" title=\"Emma at PNNL\" src=\"http:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/photo2-e1399500495447-225x300.jpg\" alt=\"\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/photo2-e1399500495447-225x300.jpg 225w, https:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/photo2-e1399500495447-768x1024.jpg 768w, https:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/photo2-e1399500495447.jpg 1224w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><figcaption id=\"caption-attachment-868\" class=\"wp-caption-text\">Graduate student Emma D&#39;Ambro installing the HR-ToF-CIMS instrument at the beginning of experiments at PNNL chamber...<\/figcaption><\/figure>\n<figure id=\"attachment_946\" aria-describedby=\"caption-attachment-946\" style=\"width: 270px\" class=\"wp-caption alignleft\"><a rel=\"attachment wp-att-946\" href=\"http:\/\/www.atmos.washington.edu\/~thornton\/field-campaigns\/pnnl-2014\/img_3654\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-946 \" title=\"FooooD!\" src=\"http:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/IMG_3654-300x225.jpg\" alt=\"\" width=\"270\" height=\"203\" srcset=\"https:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/IMG_3654-300x225.jpg 300w, https:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/IMG_3654-1024x768.jpg 1024w\" sizes=\"auto, (max-width: 270px) 100vw, 270px\" \/><\/a><figcaption id=\"caption-attachment-946\" class=\"wp-caption-text\">Mid-experiment Indian dinne<\/figcaption><\/figure>\n<figure id=\"attachment_947\" aria-describedby=\"caption-attachment-947\" style=\"width: 225px\" class=\"wp-caption alignleft\"><a rel=\"attachment wp-att-947\" href=\"http:\/\/www.atmos.washington.edu\/~thornton\/field-campaigns\/pnnl-2014\/img_3842\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-947\" title=\"post campaign!\" src=\"http:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/IMG_3842-e1425683415132-225x300.jpg\" alt=\"\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/IMG_3842-e1425683415132-225x300.jpg 225w, https:\/\/www.atmos.washington.edu\/~thornton\/wordpress\/wp-content\/uploads\/IMG_3842-e1425683415132-768x1024.jpg 768w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a><figcaption id=\"caption-attachment-947\" class=\"wp-caption-text\">Emma AFTER the completion of the experiments!<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Atmospheric chemical models generally underestimate the SOA burden. One reason may be that laboratory derived SOA yields from VOC oxidation represent a lower limit. We probed the photo-oxidation of isoprene at the Pacific Northwest National Laboratory (PNNL) Atmospheric Measurement Laboratory (AML) in collaboration with John Shilling. The chamber experiments were conducted in steady state mode to determine how SOA yields and the yields of their semi-volatile gaseous precursors change with varying levels of NOx. The HR-ToF-CIMS was instrumented with the FIGAERO inlet to measure the chemical composition in both the <\/p>\n","protected":false},"author":1,"featured_media":0,"parent":37,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-865","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/pages\/865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/comments?post=865"}],"version-history":[{"count":15,"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/pages\/865\/revisions"}],"predecessor-version":[{"id":953,"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/pages\/865\/revisions\/953"}],"up":[{"embeddable":true,"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/pages\/37"}],"wp:attachment":[{"href":"https:\/\/www.atmos.washington.edu\/~thornton\/wp-json\/wp\/v2\/media?parent=865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}