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

To ask the Secretary of State for Environment, Food and Rural Affairs, if he will make an assessment of the potential impact of clean air zones on levels of air pollution.

The latest air quality data was published in September 2023 as part of the 2022 National Compliance assessment, and is publicly available on the DEFRA UK Air website at the following link: Air Pollution in the UK report - Defra, UK. The 2022 Evaluation of Local NO₂ Plans, published in February 2024, provides information regarding the impacts of clean air zones, and is publicly available on the DEFRA website at the following link: Evaluation of Local NO2 Plans - AQ0851 (defra.gov.uk)