Sudarningsih Sudarningsih, Tetti Novalina Manik, Ibrahim Ibrahim, Abd Mujahid Hamdan, Hamdi Rifai, Siti Zulaikah, Ikbal Setiawan, Ella Rachmah Dwi Putri, Laela Azizah
This study aims to examine the feasibility of using magnetic techniques to identify anthropogenic materials produced by human activities. Rock magnetism, geochemical analysis, and pollution index calculations were used. The magnetic signal of the topsoil from the industrial area is greatly enhanced when compared with the background, with a magnetic susceptibility (χLF) of 0.23–42.60 × 10-6 m3/kg. However, industrial topsoil contains only a small number of pedogenic Superparamagnetic (SP) grains, as indicated by the low average χFD% value (<2%). The geochemical properties of the magnetic fraction in industrial topsoil differ significantly from those of topsoil generally found in peatlands. This indicates that magnetic minerals in industrial topsoil originate not only from pedogenic processes, but also from parent soil materials in the surrounding area. Significant magnetic correlation techniques can screen for topsoil pollution in this area, as evidenced by the significant correlations between χLF, Fe, and Mn, as well as between χHF and χFD%. Five heavy metals had abundances exceeding the threshold, as shown by the Pollution Load Index (PLI), which indicated moderate to very high pollution. (c) by the authors
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Lambung Mangkurat, Banjarbaru, Indonesia; Department of Environmental Engineering, Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry Banda, Banda Aceh, Aceh, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Padang, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Malang, Indonesia
