Journal
ENVIRONMENTAL CHEMISTRY LETTERS
Volume 7, Issue 2, Pages 141-148Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-008-0149-y
Keywords
Urban soil; Potentially toxic elements; PCA; Variability; Anthropogenic input; Geological background
Funding
- EU [FP5]
- Energy, Environment and Sustainable Development Program [EVK4-CT-2001-00053]
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As part of a harmonised assessment of urban soils (http://www.urbsoil.paisley.ac.uk), 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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