Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, Zographou, 15784, Athens, Greece.
Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, Zographou, 15784, Athens, Greece.
Sci Total Environ. 2020 Jul 10;725:138300. doi: 10.1016/j.scitotenv.2020.138300. Epub 2020 Apr 3.
This study examines the metal(loid) contents (As, Cd, Cr, Cu, Mn, Ni, Pb, Sb, Tl and Zn) and Pb isotopes in different environmental compartments (soil, road dust, house dust) from the industrial vicinity of Volos, central Greece. The area surrounding two steel factories, a cement plant, an industrial area and the city core were considered as potential hot spots of metal(loid) contamination. Significant anthropogenic enrichments of Cd, Pb and Zn in relation to local baseline were identified for the soil (median Enrichment Factors of 7, 15 and 8, respectively) and road dusts around the steel factory located at Velestino area. The high contents of As, Sb and Tl in the soil and road dust around the cement plant are attributed to natural sources of contamination associated with adjacent mineralization. The soil samples in the city core exhibited moderate enrichments with respect to typical tracers (Pb, Zn) of anthropogenic contamination in urban areas. Anthropogenic influences in terms of metal(loid) concentrations were more pronounced for the road and house dust material. The Pb isotopic ratios of soil (Pb/Pb = 1.154 to 1.194), road dust (Pb/Pb = 1.144 to 1.174) and house dust (Pb/Pb = 1.129 to 1.171) were between those of the local bedrock and anthropogenic Pb sources. Industrial Pb from the steel plant was the predominant anthropogenic Pb source with relative contributions of ~49% for the soil, ~42% for the road dust and ~44% for the house dust samples. For the road and house dust material, the geochemical signature obtained from Pb isotopic compositions and elemental ratios suggests additional contributors from vehicular emissions. The results of this study demonstrate the suitability of soil to trace natural and anthropogenic impacts in industrial areas and the sensitivity of the road and house dust material to record anthropogenic (industrial and vehicular-derived) contamination in such environments.
本研究考察了希腊中部沃尔霍斯工业附近不同环境介质（土壤、道路尘、室内尘）中的金属（类）含量（砷、镉、铬、铜、锰、镍、铅、锑、铊和锌）和铅同位素。考虑到两个钢铁厂、一个水泥厂、一个工业区和城市核心区周围可能是金属（类）污染的热点区域。在位于 Velestino 地区的钢铁厂周围的土壤和道路尘中，镉、铅和锌的人为富集程度明显高于当地基线（分别为 7、15 和 8 的富集因子中位数）。水泥厂周围土壤和道路尘中砷、锑和铊的高含量归因于与相邻矿化作用有关的天然污染源。市中心的土壤样本相对于城市地区人为污染的典型示踪剂（铅、锌）表现出适度的富集。就道路和室内灰尘材料而言，金属（类）浓度的人为影响更为显著。土壤（Pb/Pb=1.154 至 1.194）、道路尘（Pb/Pb=1.144 至 1.174）和室内尘（Pb/Pb=1.129 至 1.171）的铅同位素比值均介于当地基岩和人为铅源之间。钢铁厂的工业铅是主要的人为铅源，对土壤的相对贡献约为 49%，对道路尘的相对贡献约为 42%，对室内尘的相对贡献约为 44%。对于道路和室内灰尘材料，从铅同位素组成和元素比值获得的地球化学特征表明，来自车辆排放的额外贡献。本研究结果表明，土壤适合追踪工业地区的自然和人为影响，而道路和室内灰尘材料对记录此类环境中的人为（工业和车辆衍生）污染具有敏感性。
