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

To ask the Secretary of State for Environment, Food and Rural Affairs, how much in tonnes (a) herd sizes and (b) farming practices each contributed to the UK primary emissions of ammonia (NH3) in 2020.

Ammonia emission data for 2020 were published on 18 February (https://www.gov.uk/government/statistics/emissions-of-air-pollutants/emissions-of-air-pollutants-in-the-uk-ammonia-nh3).