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

To ask the Secretary of State for Environment, Food and Rural Affairs, what estimate she has made of the annual mean concentration of fine particulate matter PM2.5 (a) from (i) non-anthropogenic sources and (ii) transboundary sources and (b) in total in (A) the East Midlands, (B) the East of England, (C) Greater London, (D) the North East, (E) the North West, (F) the South East, (G) the South West, (H) the West Midlands, (I) Yorkshire and the Humber and (J) England in 2021.

Impacts of transboundary pollution were considered as part of the assessment that informed the setting of our new PM_2.5 targets. The evidence report published alongside the target consultation (https://consult.defra.gov.uk/natural-environment-policy/consultation-on-environmental-targets/supporting_documents/Air%20quality%20targets%20%20Detailed%20Evidence%20report.pdfEvidence report) described the PM_2.5 concentrations expected under different scenarios across the UK in future years and the different sources that contribute to this. Information on historic PM_2.5 concentrations in different locations across the country can be found in the Technical report on UK supplementary modelling assessment under the Air Quality Standards Regulations 2010 for 2021 (defra.gov.uk).