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

To ask the Secretary of State for Environment, Food and Rural Affairs, what estimate he has made of the proportion of total PM2.5 primary emissions from domestic combustion in the UK in 2020 that came from (a) open fireplaces, (b) wood burning stoves, (c) other solid fuel burning stoves, (d) bonfires, (e) firepits and (f) pizza ovens.

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 2020 is publicly available and was reported on 14 February 2022, via:

https://naei.beis.gov.uk/data/.

Following recent improvement work, estimates of emissions from bonfires, chimeneas and fire pits are now included in the inventory as part of the ‘small-scale waste burning’ category. Details of the methodology used to estimate these emissions can be accessed in our Informative Inventory Report, via:

https://naei.beis.gov.uk/reports/reports?report_id=1071

Emissions specifically from pizza ovens are not estimated in the inventory.