{"id":4850,"date":"2024-09-26T09:36:38","date_gmt":"2024-09-26T09:36:38","guid":{"rendered":"http:\/\/www.oruminternational.com\/en\/?page_id=4850"},"modified":"2024-10-07T17:06:01","modified_gmt":"2024-10-07T17:06:01","slug":"7-what-is-the-difference-between-active-microbial-air-sampling-and-passive-settle-methods","status":"publish","type":"page","link":"https:\/\/www.oruminternational.com\/en\/who-we-are\/bacterial-air-monitoring-division\/questions-and-answers-is-dedicated-to-the-introduction-of-microbial-air-monitoring-mam\/7-what-is-the-difference-between-active-microbial-air-sampling-and-passive-settle-methods\/","title":{"rendered":"7 &#8211; WHAT IS THE DIFFERENCE BETWEEN ACTIVE MICROBIAL AIR SAMPLING AND PASSIVE (SETTLE) METHODS?"},"content":{"rendered":"<p class=\"p1\"><span style=\"font-size: 14pt; font-family: 'trebuchet ms', geneva, sans-serif; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/www.oruminternational.com\/en\/who-we-are\/bacterial-air-monitoring-division\/questions-and-answers-is-dedicated-to-the-introduction-of-microbial-air-monitoring-mam\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5076 size-medium alignright\" src=\"http:\/\/www.oruminternational.com\/en\/wp-content\/uploads\/2024\/10\/ORM-TRB-QA_MAM-001-252x300.jpg\" alt=\"\" width=\"252\" height=\"300\" srcset=\"https:\/\/www.oruminternational.com\/en\/wp-content\/uploads\/2024\/10\/ORM-TRB-QA_MAM-001-252x300.jpg 252w, https:\/\/www.oruminternational.com\/en\/wp-content\/uploads\/2024\/10\/ORM-TRB-QA_MAM-001-859x1024.jpg 859w, https:\/\/www.oruminternational.com\/en\/wp-content\/uploads\/2024\/10\/ORM-TRB-QA_MAM-001-768x915.jpg 768w, https:\/\/www.oruminternational.com\/en\/wp-content\/uploads\/2024\/10\/ORM-TRB-QA_MAM-001-1289x1536.jpg 1289w, https:\/\/www.oruminternational.com\/en\/wp-content\/uploads\/2024\/10\/ORM-TRB-QA_MAM-001-1719x2048.jpg 1719w\" sizes=\"auto, (max-width: 252px) 100vw, 252px\" \/><\/a><\/span><span style=\"color: #000000; font-family: 'trebuchet ms', geneva, sans-serif;\">Active microbial air sampler aspirates a known volume of air that impacts at constant speed on the agar media surface collecting viable particles of different size in microns.<\/span><\/p>\n<p class=\"p1\"><span style=\"font-size: 14pt; font-family: 'trebuchet ms', geneva, sans-serif; color: #000000;\">With Passive method (settle) the viable particles fall naturally onto the surface of an open Petri dish and their collection vary based on air flow, humidity, temperature and size of micro-organisms.<\/span><\/p>\n<p class=\"p1\"><span style=\"font-size: 14pt; font-family: 'trebuchet ms', geneva, sans-serif; color: #000000;\">The active method reports quantitative results in the format of cfu \/ 1000 litres of air (=1 cubic meter); the settle method reports the results that fall on open agar surface in 4 hours.<\/span><\/p>\n<p class=\"p1\"><span style=\"font-size: 14pt; font-family: 'trebuchet ms', geneva, sans-serif; color: #000000;\">The number of cfu collected by the active method is much larger that with settle method and the quantitative results can be applied to action and alert levels.<\/span><\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Active microbial air sampler aspirates a known volume of air that impacts at constant speed on the agar media surface collecting viable particles of different size in microns. With Passive method (settle) the viable particles fall naturally onto the surface of an open Petri dish and their collection vary based on air flow, humidity, temperature [&hellip;]<!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":1,"featured_media":5076,"parent":4836,"menu_order":7,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4850","page","type-page","status-publish","has-post-thumbnail","czr-hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/pages\/4850","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/comments?post=4850"}],"version-history":[{"count":8,"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/pages\/4850\/revisions"}],"predecessor-version":[{"id":5109,"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/pages\/4850\/revisions\/5109"}],"up":[{"embeddable":true,"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/pages\/4836"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/media\/5076"}],"wp:attachment":[{"href":"https:\/\/www.oruminternational.com\/en\/wp-json\/wp\/v2\/media?parent=4850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}