{"id":63061,"date":"2025-04-29T15:00:12","date_gmt":"2025-04-29T07:00:12","guid":{"rendered":"https:\/\/thei.edu.hk\/?p=63061"},"modified":"2026-01-15T10:34:09","modified_gmt":"2026-01-15T02:34:09","slug":"thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025","status":"publish","type":"post","link":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/","title":{"rendered":"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"63061\" class=\"elementor elementor-63061\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-584d707c e-flex e-con-boxed e-con e-parent\" data-id=\"584d707c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2424abf elementor-widget__width-initial elementor--h-position-center elementor--v-position-middle elementor-pagination-position-inside elementor-widget elementor-widget-slides\" data-id=\"2424abf\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;dots&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;,&quot;transition_speed&quot;:500}\" data-widget_type=\"slides.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper\">\n\t\t\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slides\" dir=\"ltr\" data-animation=\"fadeInUp\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-83b7b12 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"Screenshot 2025-12-01 115757\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-1ae0b4a swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"Screenshot 2025-12-01 115725\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-5a024f3 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"Screenshot 2025-12-01 115741\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b0e0b66 elementor-widget elementor-widget-text-editor\" data-id=\"3b0e0b66\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Roadside remote sensing (RS) is utilized by Hong Kong&#8217;s Environmental Protection Department to tackle urban air quality issues from on-road vehicles. This technology scans numerous vehicles without disrupting traffic. Currently, horizontal remote sensing (HRS) devices are limited to single-lane applications, while vertical remote sensing (VRS) can scan multiple lanes but faces installation and maintenance challenges.<\/p><p>A diagonal remote sensing (DRS) system modifies conventional RS by elevating and tilting the light source to scan exhaust plumes diagonally, reducing maintenance needs. This study evaluates a DRS prototype&#8217;s performance in detecting emissions from a diesel truck, comparing it with HRS and VRS. The systems measured tailpipe emissions under various conditions, revealing average NOx to CO2 ratios of 44% (HRS), 32% (VRS), and 36% (DRS) compared to portable emission measurement systems (PEMS).<\/p><p>Linear regression analyses indicated the strongest correlation between HRS and PEMS, followed by VRS and DRS. The average NOx signal magnitudes were 0.52 (HRS), 0.61 (VRS), and 0.21 (DRS). The findings suggest that DRS performance is comparable to HRS and VRS, potentially enhancing urban air quality control efforts.<\/p><p><b>\u9cf4\u8b1d<\/b><\/p><p>This work was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. UGC\/IDS(C)25\/E02\/19).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Roadside remote sensing (RS) is utilized by Hong Kong&#8217;s Environmental Protection Department to tackle urban air quality issues from on-road vehicles. This technology scans numerous vehicles without disrupting traffic. Currently, horizontal remote sensing (HRS) devices are limited to single-lane applications, &hellip; <\/p>","protected":false},"author":104,"featured_media":63063,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83],"tags":[],"ppma_author":[194,197,196],"class_list":["post-63061","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ro-research-office-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025 - Technological and Higher Education Institute of Hong Kong<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/\" \/>\n<meta property=\"og:locale\" content=\"zh_HK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025 - Technological and Higher Education Institute of Hong Kong\" \/>\n<meta property=\"og:description\" content=\"Roadside remote sensing (RS) is utilized by Hong Kong&#8217;s Environmental Protection Department to tackle urban air quality issues from on-road vehicles. This technology scans numerous vehicles without disrupting traffic. Currently, horizontal remote sensing (HRS) devices are limited to single-lane applications, &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/\" \/>\n<meta property=\"og:site_name\" content=\"Technological and Higher Education Institute of Hong Kong\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-29T07:00:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-15T02:34:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thei.edu.hk\/wp-content\/uploads\/2025\/04\/Slide3-Copy.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2250\" \/>\n\t<meta property=\"og:image:height\" content=\"1492\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Ryan_Chan, Jenny_CHEUNG, Vanessa_Li\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ryan_Chan\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9810\u8a08\u95b1\u8b80\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\u9418\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/\"},\"author\":{\"name\":\"Ryan_Chan\",\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/#\\\/schema\\\/person\\\/4eff845a76fdb60b8ec7aacfc324e076\"},\"headline\":\"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025\",\"datePublished\":\"2025-04-29T07:00:12+00:00\",\"dateModified\":\"2026-01-15T02:34:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/\"},\"wordCount\":223,\"image\":{\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thei.edu.hk\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/Slide3-Copy.jpg\",\"articleSection\":[\"RO (research office) - News\"],\"inLanguage\":\"zh-HK\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/\",\"url\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/\",\"name\":\"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025 - Technological and Higher Education Institute of Hong Kong\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thei.edu.hk\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/Slide3-Copy.jpg\",\"datePublished\":\"2025-04-29T07:00:12+00:00\",\"dateModified\":\"2026-01-15T02:34:09+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/#\\\/schema\\\/person\\\/4eff845a76fdb60b8ec7aacfc324e076\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/#breadcrumb\"},\"inLanguage\":\"zh-HK\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-HK\",\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/#primaryimage\",\"url\":\"https:\\\/\\\/thei.edu.hk\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/Slide3-Copy.jpg\",\"contentUrl\":\"https:\\\/\\\/thei.edu.hk\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/Slide3-Copy.jpg\",\"width\":2250,\"height\":1492},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/thei.edu.hk\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/#website\",\"url\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/\",\"name\":\"Technological and Higher Education Institute of Hong Kong\",\"description\":\"Technological and Higher Education Institute of Hong Kong\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"zh-HK\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/#\\\/schema\\\/person\\\/4eff845a76fdb60b8ec7aacfc324e076\",\"name\":\"Ryan_Chan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-HK\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cbcb6515eaff31f7550ba71fb00fd4f6c657e110fdbece1803fa7b2733dc3ef2?s=96&d=mm&r=gd26c9443b983ed6e21a11ffbc64a5ba6\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cbcb6515eaff31f7550ba71fb00fd4f6c657e110fdbece1803fa7b2733dc3ef2?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cbcb6515eaff31f7550ba71fb00fd4f6c657e110fdbece1803fa7b2733dc3ef2?s=96&d=mm&r=g\",\"caption\":\"Ryan_Chan\"},\"url\":\"https:\\\/\\\/thei.edu.hk\\\/tc\\\/author\\\/ryan_chan\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025 - Technological and Higher Education Institute of Hong Kong","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/","og_locale":"zh_HK","og_type":"article","og_title":"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025 - Technological and Higher Education Institute of Hong Kong","og_description":"Roadside remote sensing (RS) is utilized by Hong Kong&#8217;s Environmental Protection Department to tackle urban air quality issues from on-road vehicles. This technology scans numerous vehicles without disrupting traffic. Currently, horizontal remote sensing (HRS) devices are limited to single-lane applications, &hellip;","og_url":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/","og_site_name":"Technological and Higher Education Institute of Hong Kong","article_published_time":"2025-04-29T07:00:12+00:00","article_modified_time":"2026-01-15T02:34:09+00:00","og_image":[{"width":2250,"height":1492,"url":"https:\/\/thei.edu.hk\/wp-content\/uploads\/2025\/04\/Slide3-Copy.jpg","type":"image\/jpeg"}],"author":"Ryan_Chan, Jenny_CHEUNG, Vanessa_Li","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"Ryan_Chan","\u9810\u8a08\u95b1\u8b80\u6642\u9593":"2 \u5206\u9418"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/#article","isPartOf":{"@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/"},"author":{"name":"Ryan_Chan","@id":"https:\/\/thei.edu.hk\/tc\/#\/schema\/person\/4eff845a76fdb60b8ec7aacfc324e076"},"headline":"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025","datePublished":"2025-04-29T07:00:12+00:00","dateModified":"2026-01-15T02:34:09+00:00","mainEntityOfPage":{"@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/"},"wordCount":223,"image":{"@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/#primaryimage"},"thumbnailUrl":"https:\/\/thei.edu.hk\/wp-content\/uploads\/2025\/04\/Slide3-Copy.jpg","articleSection":["RO (research office) - News"],"inLanguage":"zh-HK"},{"@type":"WebPage","@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/","url":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/","name":"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025 - Technological and Higher Education Institute of Hong Kong","isPartOf":{"@id":"https:\/\/thei.edu.hk\/tc\/#website"},"primaryImageOfPage":{"@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/#primaryimage"},"image":{"@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/#primaryimage"},"thumbnailUrl":"https:\/\/thei.edu.hk\/wp-content\/uploads\/2025\/04\/Slide3-Copy.jpg","datePublished":"2025-04-29T07:00:12+00:00","dateModified":"2026-01-15T02:34:09+00:00","author":{"@id":"https:\/\/thei.edu.hk\/tc\/#\/schema\/person\/4eff845a76fdb60b8ec7aacfc324e076"},"breadcrumb":{"@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/#breadcrumb"},"inLanguage":"zh-HK","potentialAction":[{"@type":"ReadAction","target":["https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/"]}]},{"@type":"ImageObject","inLanguage":"zh-HK","@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/#primaryimage","url":"https:\/\/thei.edu.hk\/wp-content\/uploads\/2025\/04\/Slide3-Copy.jpg","contentUrl":"https:\/\/thei.edu.hk\/wp-content\/uploads\/2025\/04\/Slide3-Copy.jpg","width":2250,"height":1492},{"@type":"BreadcrumbList","@id":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-study-of-vertical-remote-sensing-technology-for-vehicle-tailpipe-emission-to-control-air-quality-was-successfully-held-on-29-april-2025\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/thei.edu.hk\/"},{"@type":"ListItem","position":2,"name":"THEi Research Webinar \u201cA Study of Vertical Remote Sensing Technology for Vehicle Tailpipe Emission to Control Air Quality\u201d was successfully held on 29 April 2025"}]},{"@type":"WebSite","@id":"https:\/\/thei.edu.hk\/tc\/#website","url":"https:\/\/thei.edu.hk\/tc\/","name":"Technological and Higher Education Institute of Hong Kong","description":"Technological and Higher Education Institute of Hong Kong","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/thei.edu.hk\/tc\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"zh-HK"},{"@type":"Person","@id":"https:\/\/thei.edu.hk\/tc\/#\/schema\/person\/4eff845a76fdb60b8ec7aacfc324e076","name":"Ryan_Chan","image":{"@type":"ImageObject","inLanguage":"zh-HK","@id":"https:\/\/secure.gravatar.com\/avatar\/cbcb6515eaff31f7550ba71fb00fd4f6c657e110fdbece1803fa7b2733dc3ef2?s=96&d=mm&r=gd26c9443b983ed6e21a11ffbc64a5ba6","url":"https:\/\/secure.gravatar.com\/avatar\/cbcb6515eaff31f7550ba71fb00fd4f6c657e110fdbece1803fa7b2733dc3ef2?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/cbcb6515eaff31f7550ba71fb00fd4f6c657e110fdbece1803fa7b2733dc3ef2?s=96&d=mm&r=g","caption":"Ryan_Chan"},"url":"https:\/\/thei.edu.hk\/tc\/author\/ryan_chan\/"}]}},"publishpress_future_action":{"enabled":false,"date":"2026-04-22 08:50:05","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"authors":[{"term_id":194,"user_id":104,"is_guest":0,"slug":"ryan_chan","display_name":"Ryan_Chan","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/cbcb6515eaff31f7550ba71fb00fd4f6c657e110fdbece1803fa7b2733dc3ef2?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":197,"user_id":105,"is_guest":0,"slug":"jenny_cheung","display_name":"Jenny_CHEUNG","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/0fbed0ddb89d584f33f6274a0f71b4f925ff6433da80e3e6f3d4e556c8435661?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":196,"user_id":106,"is_guest":0,"slug":"vanessa_li","display_name":"Vanessa_Li","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/4e91bb13453bd37748fd0841c361c8c1f4e3ded7df71ac73eca8a2b84d6c6f85?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/posts\/63061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/users\/104"}],"replies":[{"embeddable":true,"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/comments?post=63061"}],"version-history":[{"count":11,"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/posts\/63061\/revisions"}],"predecessor-version":[{"id":67895,"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/posts\/63061\/revisions\/67895"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/media\/63063"}],"wp:attachment":[{"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/media?parent=63061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/categories?post=63061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/tags?post=63061"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/thei.edu.hk\/tc\/wp-json\/wp\/v2\/ppma_author?post=63061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}