Leachate Characterization and Assessment of Soil Pollution Near Some Municipal Solid Waste Transfer Stations in Baghdad City

This study is conducted to determine the extent to which transfer stations in the Karkh neighborhood of Baghdad, Iraq, contribute to physicochemical and heavy-metal contamination of the soils in the immediate area. The concentrations of physicochemical primary indicators (pH, OC, OM, Ca+2, Mg+2, Na+...

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Bibliographic Details
Main Author: Nabaa S. Hadi
Format: Article
Language:English
Published: Technoscience Publications 2023-12-01
Series:Nature Environment and Pollution Technology
Subjects:
Online Access:https://neptjournal.com/upload-images/(52)D-1488.pdf
Description
Summary:This study is conducted to determine the extent to which transfer stations in the Karkh neighborhood of Baghdad, Iraq, contribute to physicochemical and heavy-metal contamination of the soils in the immediate area. The concentrations of physicochemical primary indicators (pH, OC, OM, Ca+2, Mg+2, Na+1, NO3-1, Cl-1, SO4-2) and heavy metals (Pb, Cd, and Cu) were measured during July 2022 at four investigation sites that were located at distances of 5 m (Site 1), 10 m (Site 2), 15 m (Site 3), and 20 m (Site 4) from the edges of the mentioned transfer stations (Al-Rasheed, Al-Mansour, Al-Shula, and Al-Dora). The concentrations of the physico-chemicals and heavy metals were compared to the standards of the Food and Agriculture Organization (FAO) and the Consensus-Based Sediment Quality Guidelines (CBSQG). Based on the data collected, it was determined that Site 1 had the greatest physico-chemical and heavy metal concentrations, whereas Site 4 had the lowest. The metals tested were found to accumulate in the following order: Cu > Pb > Cd. Additionally, it was noticed that all the measured concentrations of metals were higher than the limitations of the CBSQG. The presence of Ca+2, Mg+2, Na+1, Pb, Cd, and Cu in soil suggests that leachate percolation is having a major impact on the soil.
ISSN:0972-6268
2395-3454