Resumen de Contaminación por compuestos nitrogenados en el acuífero aluvial de la confluencia de los ríos Jarama y Henares: Origen y evolución

María Isabel Herráez Sánchez de las Matas, P. L. Rubio

• The presence of nitrogen compounds in an aquifer is an evidence of pollution. In the aquifer studied, these compounds reach, in 50% of the analyzed samples, levels of nitrite, nitrate and ammonium too high for the water supply. Furthermore, a variation between the two samplings performed at different times of the year, due to the washing of the unsaturated zone, can be observed.

  As main focus of pollution we can point out a stream collecting residual waters, the irrigation by means of the rivers Jarama and Henares water and the stabled livestock.