Via magnetic susceptibility and X-ray fluorescence spectrometry, we examined soil heavy metal contents across an abandoned steel and iron plant that has been in production for 50 years. Soil magnetic susceptibility and heavy metal contents similarly decreased with increasing distance from the plant's industrial, central area. Results indicate that the mean value of soil magnetic susceptibility was 2727 × 10⁻⁸ m³·kg⁻¹ and the max peak was 100 m from the plant's center. Frequency dependent susceptibility values less than 2%, suggest the presence of coarse grains from industrial activities. A significant positive correlation occurs between magnetic susceptibility and Mn, Fe, Cu and Pb. Irregular-shaped and non-spherical aggregates are the main morphology of technogenic magnetic particles found in soil samples. Our results indicate that the North, Northeast and East sampling areas generally have the highest pollutants values and these directions correspond with prevailing wind directions at differing times of the year. Mapping the spatial distribution of metals could lead to high-resolution risk targeting areas for remediation and land use planning.

通过磁化率和X射线荧光光谱法，我们检查了已经生产50年的废弃钢铁厂中土壤重金属的含量。随着距工厂工业中心区域距离的增加，土壤磁化率和重金属含量也相应下降。结果表明，土壤磁化率的平均值为2727×10 ^-8 m ³ ·kg ^-1最高峰距工厂中心100 m。频率相关的磁化率值小于2％，表明存在来自工业活动的粗粒。磁化率与Mn，Fe，Cu和Pb之间存在显着的正相关。不规则形状和非球形的聚集体是土壤样品中发现的技术性磁性颗粒的主要形态。我们的结果表明，北部，东北和东部采样区通常具有最高的污染物值，并且这些方向与一年中不同时间的主要风向相对应。绘制金属的空间分布图可能会导致针对补救和土地利用规划的高分辨率风险目标区域。