Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, with reference to the study entitled Magnetic and microscopic investigation of airborne iron oxide nanoparticles in the London Underground published in Scientific Reports on 15 December 2022, what discussions she has had with the Secretaries of State for Transport and Health and Social care and the Mayor of London about (a) the potential impact of the detected Fe-oxide particles on passenger health; and (b) implementing the reduction recommendations.

Local Air Quality Management in London is devolved to the Mayor of London.