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

To ask the Secretary of State for Environment, Food and Rural Affairs, what assessment she has made of the potential impact of factory farming on ammonia pollution.

Defra does not have an assessment of “factory farms”. However, a breakdown of UK ammonia emissions by livestock sector can be found in Table 1 of this published document; 2509190841_UK_Agriculture_Ammonia_Emission_Report_1990-2023_26062025_Final.pdf.