Magnetic Susceptibility and Heavy Metals Distribution from Risk-cultivated Soil around the Iron-Steel Plant, China

摘要

Magnetic susceptibility is a non-conventional way that can be used for evaluating proxy soil heavy metals pollution. The paper monitors available heavy metals (Cu, Fe, Zn, and Mn) present in cultivated soils around ironsteel plant by soil magnetic susceptibility. Our study was located in an area with high pollution with small grid density of 250?m in China. Results showed that low field magnetic susceptibility was significantly correlated with available Cu, Zn, and Mn. No clear association exists between magnetic susceptibility and available Fe, soil organic matter, pH. Frequency dependent susceptibility >5% suggests the possible presence of super-paramagnetic particles, fly ashes produced during coal combustion.