Sustainable Use, Management and Reclamation of Soil and Water Research Group, Technical University of Cartagena, Paseo Alfonso XIII, 52., 30203, Cartagena, Murcia, Spain.
Environ Monit Assess. 2010 Oct;169(1-4):519-30. doi: 10.1007/s10661-009-1194-0. Epub 2009 Oct 23.
Problems associated with heavy metal characterization in the majority of sites are often due to multiple sources of pollution. This work presents the results through the use of advanced statistical techniques to identify sources of soil heavy metals in a typical Mediterranean city. The multivariable analysis performed on seven metals identified four sources controlling their variability. Cr, Mn, and Ni contents were associated to soil parent materials; Cd and Pb contents were related to anthropogenic activities, specifically industrial activities and traffic; Cu content is controlled by long-term application of inorganic fertilizers in agricultural areas. Finally, zinc concentration is associated to commercial and outdoor activities in the area. These results were supported by the fact that metals associated to parent material (Cr, Mn, and Ni) were better correlated with soil lithogenic properties, while anthropogenic metals were correlated with more variable soil constituents.
大多数地点的重金属特征相关问题通常是由于多种污染源引起的。本工作通过使用先进的统计技术，为典型地中海城市的土壤重金属来源提供了结果。对七种金属进行的多变量分析确定了控制其变异性的四个来源。Cr、Mn 和 Ni 含量与土壤母质有关；Cd 和 Pb 含量与人为活动有关，特别是工业活动和交通；Cu 含量受农业地区长期施用无机肥料的控制。最后，锌浓度与该地区的商业和户外活动有关。这些结果得到了证实，因为与母质相关的金属（Cr、Mn 和 Ni）与土壤岩生性特征相关性更好，而人为金属则与更易变的土壤成分相关性更好。
