Distribution of Pb, Cu, Ni and Zn in urban soils in Rome city (Italy): effect of vehicles
N. Calace A , L. Caliandro A , B. M. Petronio A B , M. Pietrantonio A , M. Pietroletti A and V. Trancalini A
+ Author Affiliations
- Author Affiliations
A Department of Chemistry, University ‘La Sapienza’, Piazzale A. Moro 5, I-00185, Rome, Italy.
B Corresponding author. Email: biancamaria.petronio@uniroma1.it
Environmental Chemistry 9(1) 69-76 https://doi.org/10.1071/EN11066
Submitted: 20 May 2011 Accepted: 1 October 2011 Published: 10 January 2012
Environmental context. In urban environments such as parks and gardens, polluted soils can have a direct influence on children’s health. This study investigates Pb, Cu and Zn concentrations in soils of several public parks in Rome city (Italy) located near roads with high traffic loads. It is shown that vehicle traffic contributes significantly to soil metal pollution in the urban parks and gardens, and that barriers such as walls and trees reduce the metal accumulation.
Abstract. In this work the concentrations of Pb, Cu, Ni and Zn in soils of several public parks in Rome city (Italy) are studied in order to investigate if vehicle traffic could be one of the main sources of heavy metals in city soil. All the parks investigated are located near roads in which vehicle traffic is high. The results show that vehicle traffic contributes in a significant way to metal pollution in city soils. Consequently public parks can be considered areas at high risk, especially when they are located near important roads. Because soil pollution attributable to vehicle traffic is prevalently bound to a diffusion process, it is possible to reduce the heavy metal accumulation in soils of public parks with the presence of barriers such as walls and trees. It is also advisable to locate areas for children in the internal part of parks distant from roads.
Additional keywords: heavy metals, public parks, vehicle traffic.
References
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