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The influence of anthropogenic and natural geochemical factors on urban soil quality variability: a comparison between Glasgow, UK and Aveiro, Portugal |
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| Authors: | Sonia Rodrigues Graham Urquhart Iain Hossack Ma Eduarda Pereira Armando C Duarte Christine Davidson Andrew Hursthouse Peter Tucker Douglas Roberston |
| Institution: | 1. CESAM/Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal 2. WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral St, Glasgow, G1 1XL, Scotland, UK 3. School of Engineering and Science, University of the West of Scotland, Paisley, PA1 2BE, UK |
| Abstract: | As part of a harmonised assessment of urban soils (), we investigated the variability of metal content in soils from Aveiro (Portugal) and Glasgow (UK). Samples were collected from parks and other public open spaces in each city. Metal content (Al, Ca, Cr, Cu, Fe, Mn, Ni, Pb and Zn) and basic soil parameters (texture, CEC, pH, organic matter) were determined and data investigated using principal component analysis (PCA). The two cities differ in absolute levels of metal content reflecting industrial and historical development. Factors identified by PCA included anthropogenic (Cu, Pb, Zn), soil properties and geology, which explain variability when data were assessed based on metal content, soil properties and land use. This study highlights the contribution from geological background even in strongly urbanised environments. |
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