{"id":12445,"date":"2025-03-18T08:34:39","date_gmt":"2025-03-18T08:34:39","guid":{"rendered":"https:\/\/www.codel.co.uk\/?p=12445"},"modified":"2025-03-31T09:33:06","modified_gmt":"2025-03-31T09:33:06","slug":"case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan","status":"publish","type":"post","link":"https:\/\/www.codel.co.uk\/vi\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/","title":{"rendered":"Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"12445\" class=\"elementor elementor-12445\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a5597d6 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a5597d6\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-16 elementor-top-column elementor-element elementor-element-5146450\" data-id=\"5146450\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-d4168e8\" data-id=\"d4168e8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3bd335f elementor-widget elementor-widget-image\" data-id=\"3bd335f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"900\" height=\"471\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-1024x536.jpg\" class=\"attachment-large size-large wp-image-12447\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-1024x536.jpg 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-300x157.jpg 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-768x402.jpg 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-18x9.jpg 18w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2.jpg 1200w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\t\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-aca553f elementor-widget elementor-widget-heading\" data-id=\"aca553f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">T\u1ed5ng Quan<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a6c98ab elementor-widget elementor-widget-text-editor\" data-id=\"a6c98ab\" 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>The Hsuehshan Tunnel, also known as the Snow Mountain Tunnel, was the longest road tunnel in Asia and the fifth longest in the world at the time of its construction. Spanning nearly 13 km, it plays a critical role in Taiwan\u2019s transportation network, forming a key section of the national expressway linking the capital, Taipei, with Yilan County. Completed at a cost of nearly $2 billion, the tunnel has significantly reduced travel time from over two hours to just thirty minutes, fostering economic growth and tourism in the region.<\/p>\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-0b6b871 elementor-widget elementor-widget-heading\" data-id=\"0b6b871\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Project Challenges<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7d98746 elementor-widget elementor-widget-text-editor\" data-id=\"7d98746\" 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>Constructing the Hsuehshan Tunnel was an immense engineering feat. The tunnel cuts through Taiwan\u2019s central mountain range, presenting complex geological conditions that required innovative solutions to ensure structural integrity and operational safety. Maintaining optimal air quality within the tunnel was a key consideration to protect commuters and ensure compliance with environmental standards.<\/p>\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-3ecebe1 elementor-widget elementor-widget-heading\" data-id=\"3ecebe1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">CODEL\u2019s Contribution<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc9f50d elementor-widget elementor-widget-text-editor\" data-id=\"dc9f50d\" 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>In 2005, 90 CODEL TunnelCraft II Air Quality Monitors (AQMs) were installed in the Hsuehshan Tunnel, supplied by the Atlas team. These included 41 CO monitors, 8 NO monitors, and 41 VIS monitors. These monitors provided real-time data on air quality parameters such as carbon monoxide (CO), nitrogen dioxide (NO\u2082), and visibility, ensuring safe driving conditions for motorists.<\/p>\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-124f914 elementor-widget elementor-widget-heading\" data-id=\"124f914\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">System Upgrade and Maintenance<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2bbb576 elementor-widget elementor-widget-text-editor\" data-id=\"2bbb576\" 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>To enhance monitoring capabilities, the TunnelCraft II AQMs were replaced in 2018 with CODEL\u2019s advanced TunnelTech 200 Series AQMs\u201433 CO\/VIS (2-in-1) units and 8 CO\/NO\/VIS (3-in-1) units. This upgrade improved reliability and accuracy, reinforcing the tunnel\u2019s commitment to safety and efficiency. During the contractual five-year warranty period, which concluded in October 2024, Atlas provided quarterly maintenance services and necessary repairs, ensuring the continued functionality and durability of the monitoring systems.<\/p>\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-f8d2508 elementor-widget elementor-widget-heading\" data-id=\"f8d2508\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Results and Impact<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d80c0bf elementor-widget elementor-widget-text-editor\" data-id=\"d80c0bf\" 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>The integration of CODEL\u2019s air quality monitoring solutions has played a vital role in maintaining safe environmental conditions within the tunnel. By continuously monitoring emissions and visibility, the system helps prevent hazardous pollution build-up, contributing to a safer and more efficient transport corridor.<\/p><p>\u00a0<\/p><p>The Hsuehshan Tunnel is now a model for large-scale tunnel infrastructure projects, demonstrating the importance of reliable air quality monitoring in ensuring the safety and sustainability of major roadways.<\/p>\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-a01cd3f elementor-widget elementor-widget-heading\" data-id=\"a01cd3f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Key Project Details<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf42f8b elementor-widget elementor-widget-text-editor\" data-id=\"bf42f8b\" 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><strong>Tunnel Length<\/strong>:<\/p><ul><li style=\"list-style-type: none;\"><ul><li>Eastbound tunnel: 12,917 m<\/li><li>Westbound tunnel: 12,942 m<\/li><\/ul><\/li><\/ul><p><strong>Constructed by<\/strong>: RSEA<\/p><p><strong>Design Speed:<\/strong> 70 km\/h (Operational speed limit raised to 80 km\/h)<\/p><p><strong>Ventilation Shafts:<\/strong> 3<\/p><p><strong>Original AQMs Installed:<\/strong> CODEL TunnelCraft II (2005)<\/p><p><strong>Upgrade: <\/strong>CODEL TunnelTech 200 Series AQM\u2019s (2018)<\/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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-16 elementor-top-column elementor-element elementor-element-e9294e0\" data-id=\"e9294e0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c51e4ec elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c51e4ec\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-11103f5\" data-id=\"11103f5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-04baeda elementor-widget elementor-widget-spacer\" data-id=\"04baeda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59df7a9 elementor-widget elementor-widget-heading\" data-id=\"59df7a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Related Products:<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ca3f7d elementor-widget elementor-widget-spacer\" data-id=\"7ca3f7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-dec3c6a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dec3c6a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-b05ef08\" data-id=\"b05ef08\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-89e3ddc elementor-widget elementor-widget-heading\" data-id=\"89e3ddc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"\/vi\/products\/tunnel-sensors\/air-quality\/co-no-visibility\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc CO, NO V\u00e0 T\u1ea7m Nh\u00ecn TunnelTech 201<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-957dab5 elementor-widget elementor-widget-image\" data-id=\"957dab5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"\/vi\/products\/tunnel-sensors\/air-quality\/co-no-visibility\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png\" class=\"attachment-medium size-medium wp-image-684\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1024x683.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-768x512.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1536x1024.png 1536w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-16x12.png 16w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled.png 1761w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\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-40ed74b elementor-widget elementor-widget-text-editor\" data-id=\"40ed74b\" 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>M\u00e1y ph\u00e2n t\u00edch TunnelTech 201 \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt h\u1ed3ng ngo\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh n\u1ed3ng \u0111\u1ed9 CO v\u00e0 NO, \u0111\u1ed3ng th\u1eddi d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p suy gi\u1ea3m quang h\u1ecdc (optical attenuation) \u0111\u1ec3 quan tr\u1eafc m\u1ee9c \u0111\u1ed9 t\u1ea7m nh\u00ecn.\u00a0<\/p>\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-7285034 elementor-widget elementor-widget-text-editor\" data-id=\"7285034\" 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>CO, NO V\u00e0 T\u1ea7m Nh\u00ecn<\/p>\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-bba6031 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"bba6031\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"\/vi\/products\/tunnel-sensors\/air-quality\/co-no-visibility\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-0991478\" data-id=\"0991478\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3ace991 elementor-widget elementor-widget-heading\" data-id=\"3ace991\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-visibility\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc CO V\u00e0 T\u1ea7m Nh\u00ecn TunnelTech 202<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fef9ff9 elementor-widget elementor-widget-image\" data-id=\"fef9ff9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-visibility\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png\" class=\"attachment-medium size-medium wp-image-684\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1024x683.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-768x512.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1536x1024.png 1536w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-16x12.png 16w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled.png 1761w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\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-a29d6cc elementor-widget elementor-widget-text-editor\" data-id=\"a29d6cc\" 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>M\u00e1y ph\u00e2n t\u00edch TunnelTech 202 \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt h\u1ed3ng ngo\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh n\u1ed3ng \u0111\u1ed9 CO, \u0111\u1ed3ng th\u1eddi d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p suy gi\u1ea3m quang h\u1ecdc (optical attenuation) \u0111\u1ec3 quan tr\u1eafc m\u1ee9c \u0111\u1ed9 t\u1ea7m nh\u00ecn.<\/p>\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-ce44932 elementor-widget elementor-widget-text-editor\" data-id=\"ce44932\" 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>CO V\u00e0 T\u1ea7m Nh\u00ecn<\/p>\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-4c38704 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"4c38704\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-visibility\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-760de9e\" data-id=\"760de9e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-145ca05 elementor-widget elementor-widget-heading\" data-id=\"145ca05\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-no-monitor\/\">TunnelTech 203 CO, NO\n Monitor<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b160e5a elementor-widget elementor-widget-image\" data-id=\"b160e5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-no-monitor\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png\" class=\"attachment-medium size-medium wp-image-684\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1024x683.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-768x512.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1536x1024.png 1536w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-16x12.png 16w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled.png 1761w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\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-a1d3a00 elementor-widget elementor-widget-text-editor\" data-id=\"a1d3a00\" 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>Thi\u1ebft b\u1ecb quan tr\u1eafc ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed TunnelTech 203 li\u00ean t\u1ee5c quan tr\u1eafc c\u00e1c th\u00f4ng s\u1ed1 CO v\u00e0 NO, \u0111\u00f3ng vai tr\u00f2 kh\u00f4ng th\u1ec3 thi\u1ebfu trong m\u1ecdi h\u1ec7 th\u1ed1ng an to\u00e0n h\u1ea7m \u0111\u01b0\u1eddng b\u1ed9 hay \u0111\u01b0\u1eddng s\u1eaft.<\/p>\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-0db1643 elementor-widget elementor-widget-text-editor\" data-id=\"0db1643\" 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>CO V\u00e0 NO<\/p>\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-825aa05 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"825aa05\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-no-monitor\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-inner-column elementor-element elementor-element-790d9c9\" data-id=\"790d9c9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-343a04a elementor-widget elementor-widget-heading\" data-id=\"343a04a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"\/vi\/products\/tunnel-sensors\/air-quality\/visibility\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc Ch\u1ec9 \u0110o T\u1ea7m Nh\u00ecn TunnelTech 204<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-efee134 elementor-widget elementor-widget-image\" data-id=\"efee134\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"\/vi\/products\/tunnel-sensors\/air-quality\/visibility\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png\" class=\"attachment-medium size-medium wp-image-684\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1024x683.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-768x512.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1536x1024.png 1536w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-16x12.png 16w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled.png 1761w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\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-7b4ecf4 elementor-widget elementor-widget-text-editor\" data-id=\"7b4ecf4\" 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>M\u00e1y ph\u00e2n t\u00edch TunnelTech 204 \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 suy gi\u1ea3m quang h\u1ecdc (optical attenuation) \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng \u0111\u1ec3 quan tr\u1eafc m\u1ee9c \u0111\u1ed9 t\u1ea7m nh\u00ecn.<\/p>\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-337d53d elementor-widget elementor-widget-spacer\" data-id=\"337d53d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a9105b elementor-widget elementor-widget-text-editor\" data-id=\"4a9105b\" 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>T\u1ea7m Nh\u00ecn<\/p>\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-2a00d43 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"2a00d43\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"\/vi\/products\/tunnel-sensors\/air-quality\/visibility\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Overview The Hsuehshan Tunnel, also known as the Snow Mountain Tunnel, was the longest road tunnel in Asia and the fifth longest in the world at the time of its construction. Spanning nearly 13 km, it plays a critical role in Taiwan\u2019s transportation network, forming a key section of the national expressway linking the capital, &#8230; <a title=\"Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan\" class=\"read-more\" href=\"https:\/\/www.codel.co.uk\/vi\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/\" aria-label=\"\u0110\u1ecdc th\u00eam v\u1ec1 Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan\">\u0110\u1ecdc ti\u1ebfp<\/a><\/p>","protected":false},"author":6,"featured_media":12451,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[35],"class_list":["post-12445","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-case-study"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Case Study: CODEL\u2019s AQM&#039;s in the Hsuehshan Tunnel, Taiwan - CODEL International LTD<\/title>\n<meta name=\"description\" content=\"In this case study discover how CODEL&#039;s advanced air quality monitors (AQM&#039;s) enhance safety in Taiwan\u2019s Hsuehshan Tunnel.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.codel.co.uk\/vi\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan\" \/>\n<meta property=\"og:description\" content=\"In this case study discover how CODEL&#039;s advanced air quality monitors (AQM&#039;s) enhance safety in Taiwan\u2019s Hsuehshan Tunnel.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.codel.co.uk\/vi\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/\" \/>\n<meta property=\"og:site_name\" content=\"CODEL International LTD\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-18T08:34:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-31T09:33:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sam Pursglove\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sam Pursglove\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/\"},\"author\":{\"name\":\"Sam Pursglove\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#\\\/schema\\\/person\\\/9731c5f8fdb96d405bf68916db9a62ef\"},\"headline\":\"Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan\",\"datePublished\":\"2025-03-18T08:34:39+00:00\",\"dateModified\":\"2025-03-31T09:33:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/\"},\"wordCount\":518,\"publisher\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.codel.co.uk\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Copy-of-TT-Blog-Thumbnail-2-1.jpg\",\"keywords\":[\"Case Study\"],\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/\",\"url\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/\",\"name\":\"Case Study: CODEL\u2019s AQM's in the Hsuehshan Tunnel, Taiwan - CODEL International LTD\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.codel.co.uk\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Copy-of-TT-Blog-Thumbnail-2-1.jpg\",\"datePublished\":\"2025-03-18T08:34:39+00:00\",\"dateModified\":\"2025-03-31T09:33:06+00:00\",\"description\":\"In this case study discover how CODEL's advanced air quality monitors (AQM's) enhance safety in Taiwan\u2019s Hsuehshan Tunnel.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.codel.co.uk\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Copy-of-TT-Blog-Thumbnail-2-1.jpg\",\"contentUrl\":\"https:\\\/\\\/www.codel.co.uk\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/Copy-of-TT-Blog-Thumbnail-2-1.jpg\",\"width\":1200,\"height\":628},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.codel.co.uk\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#website\",\"url\":\"https:\\\/\\\/www.codel.co.uk\\\/\",\"name\":\"CODEL International LTD\",\"description\":\"Codel International LTD -  Stack, Process Control and Tunnel Emission Monitors\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.codel.co.uk\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#organization\",\"name\":\"CODEL International LTD\",\"url\":\"https:\\\/\\\/www.codel.co.uk\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.codel.co.uk\\\/wp-content\\\/uploads\\\/2021\\\/01\\\/CODEL-international-ltd-logo-1.png\",\"contentUrl\":\"https:\\\/\\\/www.codel.co.uk\\\/wp-content\\\/uploads\\\/2021\\\/01\\\/CODEL-international-ltd-logo-1.png\",\"width\":300,\"height\":78,\"caption\":\"CODEL International LTD\"},\"image\":{\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.codel.co.uk\\\/#\\\/schema\\\/person\\\/9731c5f8fdb96d405bf68916db9a62ef\",\"name\":\"Sam Pursglove\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/42d5d02326dbfe33d3f949bf7d5f48b3109321f484b319aff91c1d21dba2527f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/42d5d02326dbfe33d3f949bf7d5f48b3109321f484b319aff91c1d21dba2527f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/42d5d02326dbfe33d3f949bf7d5f48b3109321f484b319aff91c1d21dba2527f?s=96&d=mm&r=g\",\"caption\":\"Sam Pursglove\"},\"sameAs\":[\"https:\\\/\\\/www.codel.co.uk\"],\"url\":\"https:\\\/\\\/www.codel.co.uk\\\/vi\\\/author\\\/sampursglovenew\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Case Study: CODEL\u2019s AQM's in the Hsuehshan Tunnel, Taiwan - CODEL International LTD","description":"In this case study discover how CODEL's advanced air quality monitors (AQM's) enhance safety in Taiwan\u2019s Hsuehshan Tunnel.","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:\/\/www.codel.co.uk\/vi\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/","og_locale":"vi_VN","og_type":"article","og_title":"Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan","og_description":"In this case study discover how CODEL's advanced air quality monitors (AQM's) enhance safety in Taiwan\u2019s Hsuehshan Tunnel.","og_url":"https:\/\/www.codel.co.uk\/vi\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/","og_site_name":"CODEL International LTD","article_published_time":"2025-03-18T08:34:39+00:00","article_modified_time":"2025-03-31T09:33:06+00:00","og_image":[{"width":1200,"height":628,"url":"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-1.jpg","type":"image\/jpeg"}],"author":"Sam Pursglove","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"Sam Pursglove","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"4 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/#article","isPartOf":{"@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/"},"author":{"name":"Sam Pursglove","@id":"https:\/\/www.codel.co.uk\/#\/schema\/person\/9731c5f8fdb96d405bf68916db9a62ef"},"headline":"Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan","datePublished":"2025-03-18T08:34:39+00:00","dateModified":"2025-03-31T09:33:06+00:00","mainEntityOfPage":{"@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/"},"wordCount":518,"publisher":{"@id":"https:\/\/www.codel.co.uk\/#organization"},"image":{"@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/#primaryimage"},"thumbnailUrl":"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-1.jpg","keywords":["Case Study"],"articleSection":["Uncategorized"],"inLanguage":"vi"},{"@type":"WebPage","@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/","url":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/","name":"Case Study: CODEL\u2019s AQM's in the Hsuehshan Tunnel, Taiwan - CODEL International LTD","isPartOf":{"@id":"https:\/\/www.codel.co.uk\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/#primaryimage"},"image":{"@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/#primaryimage"},"thumbnailUrl":"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-1.jpg","datePublished":"2025-03-18T08:34:39+00:00","dateModified":"2025-03-31T09:33:06+00:00","description":"In this case study discover how CODEL's advanced air quality monitors (AQM's) enhance safety in Taiwan\u2019s Hsuehshan Tunnel.","breadcrumb":{"@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/#primaryimage","url":"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-1.jpg","contentUrl":"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2025\/03\/Copy-of-TT-Blog-Thumbnail-2-1.jpg","width":1200,"height":628},{"@type":"BreadcrumbList","@id":"https:\/\/www.codel.co.uk\/case-study-codels-air-quality-monitoring-in-the-hsuehshan-tunnel-taiwan\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.codel.co.uk\/"},{"@type":"ListItem","position":2,"name":"Case Study: CODEL\u2019s Air Quality Monitoring in the Hsuehshan Tunnel, Taiwan"}]},{"@type":"WebSite","@id":"https:\/\/www.codel.co.uk\/#website","url":"https:\/\/www.codel.co.uk\/","name":"CODEL International LTD","description":"Codel International LTD -  Stack, Process Control and Tunnel Emission Monitors","publisher":{"@id":"https:\/\/www.codel.co.uk\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.codel.co.uk\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/www.codel.co.uk\/#organization","name":"CODEL International LTD","url":"https:\/\/www.codel.co.uk\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.codel.co.uk\/#\/schema\/logo\/image\/","url":"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/01\/CODEL-international-ltd-logo-1.png","contentUrl":"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/01\/CODEL-international-ltd-logo-1.png","width":300,"height":78,"caption":"CODEL International LTD"},"image":{"@id":"https:\/\/www.codel.co.uk\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.codel.co.uk\/#\/schema\/person\/9731c5f8fdb96d405bf68916db9a62ef","name":"Sam Pursglove","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/secure.gravatar.com\/avatar\/42d5d02326dbfe33d3f949bf7d5f48b3109321f484b319aff91c1d21dba2527f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/42d5d02326dbfe33d3f949bf7d5f48b3109321f484b319aff91c1d21dba2527f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/42d5d02326dbfe33d3f949bf7d5f48b3109321f484b319aff91c1d21dba2527f?s=96&d=mm&r=g","caption":"Sam Pursglove"},"sameAs":["https:\/\/www.codel.co.uk"],"url":"https:\/\/www.codel.co.uk\/vi\/author\/sampursglovenew\/"}]}},"_links":{"self":[{"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/posts\/12445","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/comments?post=12445"}],"version-history":[{"count":16,"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/posts\/12445\/revisions"}],"predecessor-version":[{"id":12558,"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/posts\/12445\/revisions\/12558"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/media\/12451"}],"wp:attachment":[{"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/media?parent=12445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/categories?post=12445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codel.co.uk\/vi\/wp-json\/wp\/v2\/tags?post=12445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}