Downward movement of potentially toxic elements in biosolids amended soils

• Autores: Torri, Silvana Irene; Correa, Rodrigo Studart
• Año de publicación: 2017
• Idioma: inglés
• Tipo de recurso: artículo
• Fuente: Applied and Environmental Soil Science; Vol.12, special issue; 7; https://www.hindawi.com
• Institución: Universidad de Buenos Aires. Facultad de Agronomía

Fil: Torri, Silvana Irene. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Buenos Aires, Argentina.
Potentially toxic elements (PTEs) in soils are mainly associated with the solid phase, bound to the surface of solid components, or precipitated as minerals. For most PTEs, only a small portion is dissolved in the soil solution. However, there is an interest in following the fate of mobile PTEs in the environment, for a growing amount of evidence indicates that downward movement of PTEs may occur in biosolids amended soils, leading to groundwater contamination. Therefore, it is crucial to understand the factors that control the release of these elements after land application of biosolids, in order to overcome problems related to downward movement of PTEs in the soil profile.