Badawy,, S., Husein, M., EI-Gendi, S., Abd EI-Razek, E. (2006). CHEMICAL FORMS AND MOBILITY OF SOME HEAVY METALS IN SOME POLLUTED SOILS. Journal of Soil Sciences and Agricultural Engineering, 31(1), 531-545. doi: 10.21608/jssae.2006.236933
S. H. Badawy,; M. E. Husein; S. A. EI-Gendi; E. M. Abd EI-Razek. "CHEMICAL FORMS AND MOBILITY OF SOME HEAVY METALS IN SOME POLLUTED SOILS". Journal of Soil Sciences and Agricultural Engineering, 31, 1, 2006, 531-545. doi: 10.21608/jssae.2006.236933
Badawy,, S., Husein, M., EI-Gendi, S., Abd EI-Razek, E. (2006). 'CHEMICAL FORMS AND MOBILITY OF SOME HEAVY METALS IN SOME POLLUTED SOILS', Journal of Soil Sciences and Agricultural Engineering, 31(1), pp. 531-545. doi: 10.21608/jssae.2006.236933
Badawy,, S., Husein, M., EI-Gendi, S., Abd EI-Razek, E. CHEMICAL FORMS AND MOBILITY OF SOME HEAVY METALS IN SOME POLLUTED SOILS. Journal of Soil Sciences and Agricultural Engineering, 2006; 31(1): 531-545. doi: 10.21608/jssae.2006.236933
CHEMICAL FORMS AND MOBILITY OF SOME HEAVY METALS IN SOME POLLUTED SOILS
1Soil Science Department, Faculty of Agriculture, Cairo University, Giza, Egypt.
2Soil and Water and Environment Res. Inst., Giza, Egypt.
Abstract
The present study was conducted to investigate the fractionation of some heavy metals (Cd, Cu, Pb and Zn) and their mobility in soils affected by different sources of pollution. The soil profile samples were collected from 3 sites from each of EI-Gabal ELAsfar and Heiwan areas which received sewage effluent and industrial wastes respectively for long time. The obtained results show that the soil pH and total carbonate content (TCC) are slightly decreased as the irrigation period increased. However, organic matter content increased.
The average percentage value of each particulate-bound metals species in all studied soils followed the order: residual (26.10 - 48.32 %) > organic-bound (6.27 to 52.48 %) > oxides-bound (4.95 to 33.15%) > carbonate-bound (0.67 to 22.05 %» exchangeable (1 to 6 %) of the total present in the soils.
The percentage of distributed fractions from the surface layers showed that the deepest layer (100-120 cm) is amounted to approximately 20 % for Cd; 11% for Cu; 6% for Pb and 14% for Zn in EI-Gabal EI-Asfar which ,S higher than in Helwan which represents 15 % for Cd; 8.7 % for Cu; 3 % for Pb and 8% for Zn of their total contents in the surface layer (0-20 ern), The movement of Cd and Zn are more movable than Pb and Cu.
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