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 proportion of UK primary emissions of fine particulate matter (PM2.5) in 2019 from each of the following sources in domestic premises: (a) burning wood in open fires; (b) burning coal in open fires; (c) burning wood in closed stoves; and (d) burning coal in closed stoves.

Emissions of key air pollutants are compiled and reported by Defra on an annual basis through the National Atmospheric Emissions Inventory (NAEI). The data for 2019 is publicly available and was reported on 15 February 2021, via: https://naei.beis.gov.uk/data/

Emissions specifically from bonfires, fire pits and pizza ovens are not estimated in the inventory.