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

To ask the Secretary of State for Environment, Food and Rural Affairs, which organisations completed air quality modelling to inform the air quality targets set out in the Environmental Improvement Plan.

The Environmental Improvement Plan was informed by a range of air quality modelling undertaken by key Defra contractors, as well as in-house assessment undertaken for the purpose of policy development. More information on the target development process is available here: Development of the Environment Act Targets - Defra, UK