[The role of nitrogen and phosphorus in pollution of animal origin].
Despite some variability in the data, the author has been able to establish the average characteristics of animal wastes, and to formulate an overall view of nitrogen and phosphorus wastes originating from livestock, in order to compare them with other wastes. Nitrogen is originally present mainly in the form of dissolved ammonia, whereas phosphorus is present in inorganic particles. Ammonium nitrogen is toxic for the aquatic fauna and, in favourable conditions, can be oxidised into nitrates and nitrites, which are undesirable constituents, capable of affecting the health of consumers. Phosphorus and nitrogen compounds in excess of the requirements for soil fertilisation are responsible, among other things, for degrading the quality of surface water, leading to eutrophication.
Audoin
L
L
Service Technique Générale, Société d'Aménagement Urbain et Rural (SAUR), Saint-Quentin-en-Yvelines, France.
D000818:Animals; D000829:Animals, Domestic / Q000502:physiology*; D005243:Feces; D006801:Humans; D009584:Nitrogen / Q000009:adverse effects / Q000378:metabolism*; D010758:Phosphorus / Q000009:adverse effects / Q000378:metabolism*; D012989:Soil Pollutants; D014876:Water Pollution
D012989:Soil Pollutants; D010758:Phosphorus; D009584:Nitrogen
Rôle de l'azote et du phosphore dans la pollution animale.