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 publish the latest estimate of the total tonnage of UK primary emissions of fine particulate matter, PM2.5, in 2020.

Emissions of key air pollutants, including PM _2.5, are compiled and reported by Defra on an annual basis through the National Atmospheric Emissions Inventory (NAEI), which can be found here: https://naei.beis.gov.uk/data/

The next update to the inventory, including emissions estimates for 2020 and updates to the historic time series, will be published in February 2022.