Study of alluvial soil contamination with heavy metals due to air pollution in Cairo

Autor: Kamal T. Hindy
Rok vydání: 1991
Předmět:
Zdroj: International Journal of Environmental Studies. 38:273-279
ISSN: 1029-0400
0020-7233
DOI: 10.1080/00207239108710672
Popis: Concentrations of Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd and Pb were determined at various depths of alluvial soil profiles taken from six rural areas located in south and southwest of Cairo. These metals were analysed by atomic absorption spectrophotometry. It may be suggested that the top‐soil content is greatly affected by the heavy metal content in air‐borne dust in the investigated areas. This may be, in turn, attributed to the emission sources of the nine heavy metals in the city, particularly those associated with the industrial activities in the south and north of Cairo. It was found also that about 30% of eight metal total concentrations in the soil profiles are retained on the surface. Cadmium is the only metal which has a relatively little downward movement.
Databáze: OpenAIRE