Ammonia pollution hotspots found in areas of UK with most pig and poultry factory farms

Map reveals most severe concentrations of ammonia emissions, which are dangerous to health and environment

Ammonia pollution hotspots have been identified in areas with some of the greatest numbers of intensive pig and poultry farms in Britain, research has revealed.

A new map for the first time reveals the most severe concentrations of ammonia emissions are clustered in Lincolnshire, Herefordshire and Norfolk. These regions all have a high density of intensive poultry and pig units that drive dangerous levels of ammonia, according to researchers from Compassion in World Farming (CiWF) and Sustain.