Dust Tackling Technology Trialled in London Underground

TfL set to test innovative technology to address dust-related issues at two London Underground stations.

16:18 03 January 2024

Transport for London (TfL) has announced the deployment of new technology at two London Underground stations to address dust-related concerns on the network. The Mayor's Budget for 2024/25 outlines the trial, aiming to enhance air quality underground.

According to the document, "In winter 2023/24, we will trial a new air filtration system at Baker Street and Green Park stations. We are funding the trial as part of our work to test innovative solutions to improve air quality on the Underground." Additionally, authorities confirm ongoing funding for a project team investigating the capture and reuse of thermal energy from the Tube's ventilation shafts. The aim is to supply this energy to external networks and buildings, with an identified initial site progressing as a priority for subsequent deployment at more locations.

Despite a study by Cambridge University academics revealing concerns about "ultrafine particles" on the Tube, primarily generated by friction, Mayor Sadiq Khan and TfL Chair emphasize the safety of Underground travel. TfL officials argue that the UK and World Health Organisation's limits for particulate matter are not applicable to enclosed environments like the London Underground, as these limits are designed for outdoor areas and represent typical exposure to outdoor air quality concerns, such as traffic exhaust fumes.