Concentrations of 10 potentially toxic trace elements were measured in soil samples collected from 18 sites in urban areas of Belgrade, the capital and the largest city in Serbia. Samples were analysed in order to assess the extent of soil contamination and to distinguish natural and anthropogenic input. The results demonstrated a general Zn, Pb, and Cd enrichment in surface samples, hence, after comparison with guidelines, it has been determined that there is a potential risk for human health. In the surface and buried samples, traces of cooper were detected. The highest concentrations of Cr (121 ± 12.3 mg/kg) and Ni (94.9 ± 12.6 mg/kg) were found at a sediment depth of 2 m and should be ascribed to geogenic sources. The results of HCA and PCA analysis supported a natural origin of Co, Cu, Mn, Cr, and Ni, while Cd, Zn, and Pb originated from anthropogenic inputs. Based on the pollution indices, Cd made the most dominant contribution, posing a high contamination risk in the studied area. Results of Nemerow pollution index (PIN) and potential ecological risk index (PER) demonstrated that pollution by heavy metals in sediments on several sites is moderately intense.

中文翻译：

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塞尔维亚贝尔格莱德城市沉积物中潜在有毒元素的调查。

在从贝尔格莱德市区，塞尔维亚首都和最大城市的18个地点收集的土壤样品中测量了10种潜在毒性微量元素的浓度。为了评估土壤污染程度并区分自然和人为输入，对样品进行了分析。结果表明表面样品中普遍富集锌，铅和镉，因此，在与指南进行比较后，已确定存在对人体健康的潜在风险。在表面和埋藏的样品中，检测到了铜的痕迹。在沉积深度2 m处发现了最高浓度的Cr（121±12.3 mg / kg）和Ni（94.9±12.6 mg / kg），应归因于地源。HCA和PCA分析的结果支持了Co，Cu，Mn，Cr和Ni的自然起源，而Cd，Zn，铅来自人为输入。根据污染指数，Cd的贡献最大，在研究区域中构成高污染风险。Nemerow污染指数（PIN）和潜在生态风险指数（PER）的结果表明，几个地点的沉积物中重金属的污染程度中等。