Bourliva Anna, Papadopoulou Lambrini, Aidona Elina, Giouri Katerina
Department of Mineralogy-Petrology-Economic Geology, Faculty of Geology, School of Geology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
Department of Geophysics, Faculty of Geology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
Environ Sci Pollut Res Int. 2017 Jul;24(20):17041-17055. doi: 10.1007/s11356-017-9355-0. Epub 2017 Jun 4.
The objective of this study was to assess the contamination level of potentially harmful elements (PHEs) in industrial soils and how this relates to environmental magnetism. Moreover, emphasis was given to the determination of the potential mobile fractions of typically "technogenic" metals. Therefore, magnetic and geochemical parameters were determined in topsoils (0-20 cm) collected around a chemical industry in Sindos Industrial Area, Thessaloniki, Greece. Soil samples were presented significantly enriched in "technogenic" metals such Cd, Pb, and Zn, while cases of severe soil contamination were observed in sampling sites north-west of the industrial unit. Contents of Cd, Cr, Cu, Ni, Pb, Mo, Sb, Sn, and Zn in soils and pollution load index (PLI) were highly correlated with mass specific magnetic susceptibility (χ ). Similarly, enrichment factor (EF) and geoaccumulation index (I ) for "technogenic" Pb and Zn exhibited high positive correlation factors with χ . Principal component analysis (PCA) classified PHEs along with the magnetic variable (χ ) into a common group indicating anthropogenic influence. The water extractable concentrations were substantially low, while the descending order of UBM (Unified BARGE Method) extractable concentrations in the gastric phase was Zn > Pb > As > Cd, yet Cd showed the highest bioaccessibility (almost 95%).
本研究的目的是评估工业土壤中潜在有害元素（PHEs）的污染水平及其与环境磁性的关系。此外，重点是测定典型“技术成因”金属的潜在可移动部分。因此，对在希腊塞萨洛尼基辛多斯工业区一家化工企业周围采集的表层土壤（0 - 20厘米）中的磁性和地球化学参数进行了测定。土壤样品中“技术成因”金属如镉、铅和锌显著富集，而在工业单元西北部的采样点观察到严重的土壤污染情况。土壤中镉、铬、铜、镍、铅、钼、锑、锡和锌的含量以及污染负荷指数（PLI）与质量比磁化率（χ）高度相关。同样，“技术成因”铅和锌的富集因子（EF）和地累积指数（I）与χ呈现出高正相关系数。主成分分析（PCA）将PHEs与磁性变量（χ）归为一组，表明存在人为影响。水可提取浓度极低，而在胃相中UBM（统一驳船法）可提取浓度的降序排列为锌＞铅＞砷＞镉，但镉显示出最高的生物可及性（近95%）。
