Agriculture's Impact on Atmospheric Ammonia Emissions Revealed

Research from Charles University has unveiled the magnitude and hotspots of atmospheric ammonia (NH3) emissions, attributed primarily to synthetic nitrogen fertilizers and livestock manure. The study's findings highlight the need for targeted mitigation strategies to ensure sustainable agricultural practices. According to the research, Asia, North America, and Europe are the primary emission hotspots, with urea-based fertilizers and intensive livestock farming being key contributors.

Key Takeaways:

• The study quantifies global NH3 emissions using a high-resolution gridded emissions inventory, comparing chemical fertilizers and organic fertilizers from various livestock sources.
• Results indicate that Asia, North America, and Europe are primary emission hotspots, driven by urea-based fertilizers and intensive livestock farming.
• Targeted mitigation strategies, such as improved manure management, optimized fertilizer application, and policies like the EU's NH Emission Ceilings Directive and China's Zero Increase Action Plan, are essential for reducing emissions.
• The study suggests that sustainable agricultural practices can balance food security and environmental protection.
• Key contributors to NH3 emissions include cattle, buffaloes, sheep, goats, pigs, and chickens from livestock manure.
• The research provides critical insights into nitrogen cycling and environmental pollution.

Statistics:

• The study covers the spatial distribution, magnitude, and policy implications of NH3 emissions.
• Global NH3 emissions are influenced by synthetic nitrogen fertilizers and livestock manure.
• Asia, North America, and Europe are primary emission hotspots, accounting for the majority of NH3 emissions.
• Urea-based fertilizers and intensive livestock farming are key contributors to NH3 emissions.
• Improved manure management and optimized fertilizer application can significantly reduce NH3 emissions.

Sources:

• High-Resolution Spatial Analysis of Organic and Chemical Nitrogen Fertilizer Sources on NH3 Emissions. E3S Web of Conferences, 2025, 635(3): 1002. (E3S Web of Conferences - http://www.e3s-conferences.org/).
• EDP Sciences. The publisher for E3S Web of Conferences.
• NewsRx. Researchers at Charles University Publish New Data on Agriculture (High-Resolution Spatial Analysis of Organic and Chemical Nitrogen Fertilizer Sources on NH3 Emissions). Ecology, Environment & Conservation. July 18, 2025; p 928.