A new interactive Ammonia Map in the UK has identified pollution hotspots that correlate with factory farms, particularly those housing intensive chicken and pig farming. These farms release high levels of ammonia, contributing to a significant portion of total ammonia emissions in the country in 2024. Ammonia pollution can have adverse effects on human health, including respiratory issues, cardiovascular problems, and even an increased risk of cancer.

Despite the health risks associated with factory farming, the UK government is considering relaxing planning rules to make it easier to build more factory farms. This has raised concerns among critics who worry about the environmental impact and the potential exacerbation of pollution in areas already dealing with high ammonia levels. The proposed changes have been met with resistance from groups like Communities Against Factory Farming, who are fighting against the expansion of megafarms in the UK.