Work

High-Resolution Spatial Analysis of Organic and Chemical Nitrogen Fertilizer Sources on NH3 Emissions

Year: 2025

Type: conference-paper

Abstract: Agriculture is a major source of atmospheric ammonia (NH₃) emissions, driven by synthetic nitrogen fertilizers and livestock manure, which significantly influence nitrogen cycling and environmental pollution. This study quantifies the global impact of nitrogen sources on NH₃ emissions using a high-resolution gridded emissions inventory, comparing chemical fertilizers (e.g., urea, ammonium nitrate, etc) and organic fertilizers (cattle, buffaloes, sheep, goats, pigs, and chickens). Results indicated that Asia, North America, and Europe are primary emission hotspots, with urea-based fertilizers and intensive livestock farming as key contributors. Targeted mitigation strategies, such as improved manure management, optimized fertilizer application, and policies like the EU’s NH₃ Emission Ceilings Directive and China’s Zero Increase Action Plan, are essential for reducing emissions. This study provides critical insights into the spatial distribution, magnitude, and policy implications of NH3 emissions, guiding sustainable agricultural practices to balance food security and environmental protection.

Source: E3S Web of Conferences

DOI: 10.1051/e3sconf/202563503002

Authors: Amir Dadrasi, Jan Weinzettel, Fatemeh Salmani, Davina Vačkářová

Institution: Charles University

Language: English

Topic: Atmospheric chemistry and aerosols

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

SDGs: Climate action, Zero hunger

Open Access status: diamond

Funder: Grantová Agentura České Republiky