Sequential Extraction of Some Heavy Metals in Southwest Giza Soil, Egypt
Salman, S., Abu El Ella, E., Elnazer, A. (2018). Sequential Extraction of Some Heavy Metals in Southwest Giza Soil, Egypt. EKB Journal Management System, 61(5), 785-797. doi: 10.21608/ejchem.2018.3180.1271
Salman A. Salman; Elsayed M Abu El Ella; Ahmed Abdefattah Elnazer. "Sequential Extraction of Some Heavy Metals in Southwest Giza Soil, Egypt". EKB Journal Management System, 61, 5, 2018, 785-797. doi: 10.21608/ejchem.2018.3180.1271
Salman, S., Abu El Ella, E., Elnazer, A. (2018). 'Sequential Extraction of Some Heavy Metals in Southwest Giza Soil, Egypt', EKB Journal Management System, 61(5), pp. 785-797. doi: 10.21608/ejchem.2018.3180.1271
Salman, S., Abu El Ella, E., Elnazer, A. Sequential Extraction of Some Heavy Metals in Southwest Giza Soil, Egypt. EKB Journal Management System, 2018; 61(5): 785-797. doi: 10.21608/ejchem.2018.3180.1271

Sequential Extraction of Some Heavy Metals in Southwest Giza Soil, Egypt

Egyptian Journal of Chemistry
Article 5, Volume 61, Issue 5, September and October 2018, Page 785-797  XML PDF (1.21 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2018.3180.1271
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Authors
Salman A. Salman email orcid 1; Elsayed M Abu El Ella2; Ahmed Abdefattah Elnazerorcid 3
1Geological Sciences Dept., Inorganic Chemical Industries and Mineral Resources Research Division, National Research Centre
2Geology Dept, Faculty of Science, Assiut University
3Geological Sciences Department, National Research Centre,Giza Egypt
Abstract
The pollution of agriculture soil in southwest Giza, Egypt with As, Cd, Pb and Cr were assessed by the application of Index of Geoaccumulation (Igeo) and five steps sequential extractions technique. The results indicated that the soils are muddy sand, alkaline (pH ≈ 8.3), calcareous (CaCO3>5%) and have low organic matter (3.1%). Soil contains about 142.8, 1.7, 123.5 and 209.1 ppm of As, Cd, Pb and Cr, respectively. The Igeo indicated that the soils of the study area ranged from uncontaminated-moderately to extremely contaminated. The sequential extraction explained the incorporation of Pb and Cr in the residual fraction and the incorporation of As and Cd in the carbonate fraction. The exchangeable fraction contains 9, 7.9, 5.1 and 2.6% of As, Cd, Pb and Cr extracts, respectively. The environmental risk in the study area comes from the presence of 10.4 ppm As in the exchangeable fraction. The risk assessment code illustrated that Pb ranged from low to medium risk, Cr medium to high risk, As high to very high risk and Cd shows very high risk. These results reflect the mixed sources (geogenic and anthropogenic) of metals in the soil of the study area.
Keywords
Bioavailable; Giza; Egypt; Heavy metals; anthropogenic; sequential extraction; soil pollution
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