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Abstract Rapid development in industries will contribute to the pollution of the soil. Studies of elemental pollution in the soil in the Klang industrial area were conducted to determine the concentration level in that area. Analysis of the content of elemental pollution in soil samples has used neutron activation analysis (NAA) techniques. The average concentration of major elements (Fe, Mg, Ti), heavy metals (As, Sb, Cr, Zn), uranium (U) and thorium (Th) in the soil of the Klang industrial area exceeded the average concentration in granitic igneous rocks. In comparison, the average concentration of rare earth elements (REEs) in soil samples in the study area is lower than the reference value of granitic igneous rocks. The elements of As, Zn and Cr showed a high concentration in the SL 11 area, where business activities, vehicle workshops and residential were located. The REEs show a high concentration in the SL 14 area compared to other sites. The geo-accumulation (Igeo) index was applied to identify the pollution status. The Igeo index for the elements of Mg and U can be categorised as unpolluted to moderately polluted. As and Sb can be categorised as unpolluted to moderately polluted, and as extremely polluted in the areas of SL 11 and SL 14. The element of Th can be categorised as unpolluted to moderately and strongly polluted. The Igeo index of REEs can be categorised as unpolluted in the soil of the Klang Industrial area.
Elias et al. (Wed,) studied this question.
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