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

To ask the Secretary of State for Environment, Food and Rural Affairs, if she will publish her Department’s modelling which shows that reducing the annual mean concentration of PM2.5 to 10 µg/m3 by 2030 is not possible; and if she will make a statement.

A further report detailing the modelling conducted in support of the PM_2.5 targets was published on 9 February 2023. This is available here, alongside the numerous other documents which formed part of the over 800 pages of published evidence which supported the development of the environmental targets: Air Quality Targets in the Environment Act - Defra, UK.