Potentially toxic elements contamination in urban soils: a comparison of three european cities
Studies on several cities around the world confirm that urban soils are subject to heavy anthropogenic disturbance. However, these surveys are difficult to compare due to a lack of common sampling and analytical protocols. In this study the soils of Ljubljana (Slovenia), Sevilla (Spain), and Torino (Italy) were extensively sampled and analyzed using common procedures. Results highlighted similarities across the cities, despite their differences in geography, size, climate, etc. Potentially toxic elements (PTE) showed a wide range in concentration reflecting a diffuse contamination. Among the ‘‘urban’’ elements Pb exceeded the legislation threshold in 45% of Ljubljana, 43% of Torino, and 11% of Sevilla samples while Zn was above the limits in 20, 43, and 2% of the soils of Ljubljana, Torino, and Sevilla, respectively. The distribution of PTE showed no depth-dependant changes, while general soil properties seemed more responsive to anthropogenic influences. Multivariate statistics revealed similar associations between PTE in the three cities, with Cu, Pb, and Zn in a group, and Ni and Cr in another, suggesting an anthropogenic origin for the former group and natural one for the latter. Chromium and Ni were unaffected by land use, except for roadside soils, while Cu, Pb, and Zn distribution appeared to be more dependent on the distance from emission sources. Regardless of the location, climate, and size, the ‘‘urban’’ factor—integrating type and intensity of contaminant emission and anthropogenic disturbance—seems to prevail in determining trends of PTE contamination.
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American Society of Agronomy
2007-01-09
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Subjects: | Heavy-metals, Urban soils, Pollution, Sevilla, Plant, GIS, |
Online Access: | http://hdl.handle.net/10261/22424 |
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dig-irnas-es-10261-224242019-10-14T13:16:34Z Potentially toxic elements contamination in urban soils: a comparison of three european cities Biasioli, M. Grêman, H. Kralj, T. Madrid Díaz, Fernando Díaz Barrientos, Encarnación Ajmone-Marsan, F. Heavy-metals Urban soils Pollution Sevilla Plant GIS Studies on several cities around the world confirm that urban soils are subject to heavy anthropogenic disturbance. However, these surveys are difficult to compare due to a lack of common sampling and analytical protocols. In this study the soils of Ljubljana (Slovenia), Sevilla (Spain), and Torino (Italy) were extensively sampled and analyzed using common procedures. Results highlighted similarities across the cities, despite their differences in geography, size, climate, etc. Potentially toxic elements (PTE) showed a wide range in concentration reflecting a diffuse contamination. Among the ‘‘urban’’ elements Pb exceeded the legislation threshold in 45% of Ljubljana, 43% of Torino, and 11% of Sevilla samples while Zn was above the limits in 20, 43, and 2% of the soils of Ljubljana, Torino, and Sevilla, respectively. The distribution of PTE showed no depth-dependant changes, while general soil properties seemed more responsive to anthropogenic influences. Multivariate statistics revealed similar associations between PTE in the three cities, with Cu, Pb, and Zn in a group, and Ni and Cr in another, suggesting an anthropogenic origin for the former group and natural one for the latter. Chromium and Ni were unaffected by land use, except for roadside soils, while Cu, Pb, and Zn distribution appeared to be more dependent on the distance from emission sources. Regardless of the location, climate, and size, the ‘‘urban’’ factor—integrating type and intensity of contaminant emission and anthropogenic disturbance—seems to prevail in determining trends of PTE contamination. Peer reviewed 2010-03-16T11:24:41Z 2010-03-16T11:24:41Z 2007-01-09 artículo http://purl.org/coar/resource_type/c_6501 Journal of Environmental Quality 36, 70–79 (2007) 0047-2425 (Online) http://hdl.handle.net/10261/22424 10.2134/jeq2006.0254 en http://jeq.scijournals.org/cgi/content/abstract/joenq;36/1/70 open 22195 bytes application/pdf American Society of Agronomy |
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Heavy-metals Urban soils Pollution Sevilla Plant GIS Heavy-metals Urban soils Pollution Sevilla Plant GIS |
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Heavy-metals Urban soils Pollution Sevilla Plant GIS Heavy-metals Urban soils Pollution Sevilla Plant GIS Biasioli, M. Grêman, H. Kralj, T. Madrid Díaz, Fernando Díaz Barrientos, Encarnación Ajmone-Marsan, F. Potentially toxic elements contamination in urban soils: a comparison of three european cities |
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Studies on several cities around the world confirm that urban soils are subject to heavy anthropogenic disturbance. However, these surveys are difficult to compare due to a lack of common sampling and analytical protocols. In this study the soils of Ljubljana (Slovenia), Sevilla (Spain), and Torino (Italy) were extensively sampled and analyzed using common procedures. Results highlighted similarities across the cities, despite their differences in geography, size, climate, etc. Potentially toxic elements (PTE) showed a wide range in concentration reflecting a diffuse contamination. Among the ‘‘urban’’ elements
Pb exceeded the legislation threshold in 45% of Ljubljana, 43% of Torino, and 11% of Sevilla samples while Zn was above the
limits in 20, 43, and 2% of the soils of Ljubljana, Torino, and Sevilla, respectively. The distribution of PTE showed no depth-dependant changes, while general soil properties seemed more responsive to anthropogenic influences. Multivariate statistics revealed similar associations
between PTE in the three cities, with Cu, Pb, and Zn in a group, and Ni and Cr in another, suggesting an anthropogenic origin for the former group and natural one for the latter. Chromium and Ni were unaffected by land use, except for roadside soils, while Cu, Pb, and Zn distribution appeared to be more dependent on the distance from emission sources. Regardless of the location, climate, and size, the ‘‘urban’’ factor—integrating type and intensity of contaminant emission and anthropogenic disturbance—seems to prevail in determining trends of PTE contamination. |
format |
artículo |
topic_facet |
Heavy-metals Urban soils Pollution Sevilla Plant GIS |
author |
Biasioli, M. Grêman, H. Kralj, T. Madrid Díaz, Fernando Díaz Barrientos, Encarnación Ajmone-Marsan, F. |
author_facet |
Biasioli, M. Grêman, H. Kralj, T. Madrid Díaz, Fernando Díaz Barrientos, Encarnación Ajmone-Marsan, F. |
author_sort |
Biasioli, M. |
title |
Potentially toxic elements contamination in urban soils: a comparison of three european cities |
title_short |
Potentially toxic elements contamination in urban soils: a comparison of three european cities |
title_full |
Potentially toxic elements contamination in urban soils: a comparison of three european cities |
title_fullStr |
Potentially toxic elements contamination in urban soils: a comparison of three european cities |
title_full_unstemmed |
Potentially toxic elements contamination in urban soils: a comparison of three european cities |
title_sort |
potentially toxic elements contamination in urban soils: a comparison of three european cities |
publisher |
American Society of Agronomy |
publishDate |
2007-01-09 |
url |
http://hdl.handle.net/10261/22424 |
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1777664161093779456 |