Tianjin's urban rail network includes metro, light rail and guided tram services. The existing section of its first line opened on 28 December 1984, making Tianjin the second mainland Chinese city with urban rail operations according to the original profile.
As of December 2019, the original entry reported six metro lines serving 11 municipal districts, with a combined operating length of 233 kilometers and 143 stations.
The historical profile recorded approximately 525.06 million journeys in 2019, averaging around 1.4385 million journeys per day.
BIOSUN provides air treatment solutions for rail transit. Its Chinese project profile reports experience across more than 100 rail projects in China and overseas, with applications addressing airborne microorganisms, particles, chemical gases and emissions from interior materials in occupied transport environments.
Applications cover train interiors, platforms, station halls and public restrooms. BIOSUN applies PHOTOPLASMA technology to selected microbial, gaseous and particulate air treatment requirements. Performance should be assessed against the equipment specifications, relevant test reports and operating conditions.
