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Metals in European roadside soils and soil solution--a review.

Authors
  • Werkenthin, Moritz1
  • Kluge, Björn2
  • Wessolek, Gerd2
  • 1 Department of Ecology, Soil Conservation, Technische Universität Berlin, Ernst-Reuter-Platz 1, 10587 Berlin, Germany. Electronic address: [email protected] , (Germany)
  • 2 Department of Ecology, Soil Conservation, Technische Universität Berlin, Ernst-Reuter-Platz 1, 10587 Berlin, Germany. , (Germany)
Type
Published Article
Journal
Environmental pollution (Barking, Essex : 1987)
Publication Date
Jun 01, 2014
Volume
189
Pages
98–110
Identifiers
DOI: 10.1016/j.envpol.2014.02.025
PMID: 24657603
Source
Medline
Keywords
License
Unknown

Abstract

This review provides a summary of studies analysing metal concentrations in soils and soil solution at European roadsides. The data collected during 27 studies covering a total of 64 sites across a number of European countries were summarised. Highest median values of Cr, Cu, Ni, Pb, and Zn were determined in the top soil layer at the first 5 m beside the road. Generally, the influence of traffic on soil contamination decreased with increasing soil depth and distance to the road. The concentration patterns of metals in soil solution were independent from concentrations in the soil matrix. At 10-m distance, elevated soil metal concentrations, low pH, and low percolation rates led to high solute concentrations. Directly beside the road, high percolation rates lead to high annual loadings although solute concentrations are comparatively low. These loadings might be problematic, especially in regions with acidic sandy soils and a high groundwater table.

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