Written Question·Department for Transport·UIN 97700

Railways: Air Pollution

Tabled: 5 December 2025
Answered: 15 December 2025

Question

Alex Mayer

LabourDunstable and Leighton Buzzard

To ask the Secretary of State for Transport, what recent assessment she has made of the air quality on the rail network; and whether her Department plans to issue updated guidance on air quality on the rail network.

Answer

Keir Mather
The Department is funding monitoring and research to assess air quality in stations and onboard trains through the Rail Safety and Standards Board (RSSB). This includes the £5.5 million Air Quality Monitoring Network, which is collecting data at up to 72 ...

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