【全球氮足迹】Azusa OitaArunima MalikKeiichiro KanemotoArne GeschkeShota Nishijima & Manfred Lenzen. Substantial nitrogen pollution embedded in international trade. Nature Geoscience 9 111–115 (2016) doi:10.1038-ngeo2635

Abstract

Anthropogenic emissions of reactive nitrogen to the atmosphere and water bodies can damage human health and ecosystems^{1 2}. As a measure of a nation’s contribution to this potential damage a country’s nitrogen footprint has been defined as the quantity of reactive nitrogen emitted during the production consumption and transportation of commodities consumed within that country whether those commodities are produced domestically or internationally³. Here we use global emissions databases^{4 5} a global nitrogen cycle model⁶ and a global input–output database of domestic and international trade^{7 8} to calculate the nitrogen footprints for 188 countries as the sum of emissions of ammonia nit