Global Nitrogen and Phosphorus Pollution

Humans have altered the natural nitrogen and phosphorus biogeochemical cycles by the massive input of fertilizers to the agricultural system to boost production. As a result a large amount of nitrogen and phosphorus have been mobilised and delivered to the environment, creating threats to aquatic and terrestrial ecosystem functioning and human health. Based on recent studies published in the literature, this research describes and quantifies the main fluxes of the current global nitrogen and phosphorus cycles (year 2000–2010).