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Influence of the residence time of street trees and their soils on trace element contamination in Paris (France)
2019
Quenea, Katell | Andrianjara, Iry | Rankovic, Aleksandar | Gan, Erika | Aubry, Emmanuel | Lata, Jean-Christophe | Barot, Sébastien | Castrec-Rouelle, Maryse | Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols (METIS) ; École Pratique des Hautes Études (EPHE) ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) | Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris) ; Institut National de la Recherche Agronomique (INRA)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS) | Laboratoire d'Agronomie de la ville de Paris ; Direction des Espaces Verts et de l'Environnement (DEVE) | Institut du Développement Durable et des Relations Internationales (IDDRI) ; Institut d'Études Politiques [IEP] - Paris | Tomsk Polytechnic University [Russie] (UPT) | Ile-de-France region (R2DS); GIS "Climate, Environment, Society" (CCTV2 Project); PIR IngEcoTech (IESUM project); Sorbonne Universities (Dens' project, Convergences program)
International audience | With the actual increasing interest for urban soils, the evaluation of soil contamination by trace elements and the dynamics of this contamination appear mandatory to preserve plant and thereby human health. Street trees and the associated soil placed in pits located nearby roads could represent convenient indicators of urban and vehicle traffic influences on soils and plants. However, data on these soils remain scarce, many studies investigating park soils rather than street tree soils. Furthermore, trace elements could be one of the main factors causing the observed urban tree decline, while practitioners more and more question the possible reuse of these soils after the death of trees as well as tree litter collected in the streets. We evaluated the contamination in anthropogenic trace elements (TE), namely Zn, Pb, and Cd, of street trees (Tilia tomentosa) and their soils distributed all over Paris (France). Street tree soils are imported from rural areas at the plantation of each new tree so that tree age corresponds to the time of residence of the soil within an urban environment allowing the evaluation of temporal trends on TE concentration in soils and trees. The TE concentration revealed an important soil pollution, especially for the older soils (mean age of 80 years old). The consideration of the residence time of trees and soils in an urban environment evidenced an accumulation of Zn and Pb (ca. 4.5 mg kg−1 year−1 and 4 mg kg−1 year−1 for Zn and Pb, respectively). However, leaf concentrations in TE were low and indicate that soil-root transfer was not significant compared to the contamination by atmospheric deposition. These results underlined the necessity to deepen the evaluation of the recycling of urban soils or plants submitted to urban contamination.
Afficher plus [+] Moins [-]Some data about the global pollution (fluorine pollution particularly) in Annaba area (Algeria)
1993
Semadi, A. (Universite de Annaba (Algerie). Institut des sciences de la Nature)
Accumulation of cadmium by some crops around a factory producing phosphate fertilizers in Sfax (Tunisia) | Accumulation du cadmium par quelques especes vegetales cultivees aux environs d'une usine d'engrais phosphates a Sfax (Tunisie)
1999
Mezghani, I. (Faculte des Sciences de Fax (Tunisie). Departement de Biologie) | Boukhris, M. | Chaieb, M.
La pollution des ecosystemes terrestres par du cadmium d'origine industrielle (usine d'engrais phosphates) se traduit par des taches necrotiques au niveau des feuilles et par une accumulation importante de cet element dans ces feuilles et dans les horizons superficiels des sols. A proximite de la source d'emission, les taux de cadmium dans le sol depassent 10 fois les valeurs normales. Au niveau des feuilles, elles sont 10 a 30 fois plus elevees que chez les temoins et dependent de la nature de l'espece, de la distance (correlation negative) et des conditions topographiques
Afficher plus [+] Moins [-][Animal as biological indicators of pollution]
1995
Echaubard, M. (Institut National Agronomique Paris Grignon, Paris (France). Ecotoxicologie des Pestices)
[Characterization of Cd binding molecular compounds in oysters (Crassostrea gigas) from contaminated area]
1995
Mouneyrac, C. (IRFA, Angers (France)) | Berthet, B. | Cosson, R.P. | Amiard, J.C.
[Accumulation of hydroxylated derivatives of triazines in the corn seedling: a biological marker]
1995
Raveton, M. (Universite de Grenoble 1 (France). Laboratoire de Physiologie Cellulaire Vegetale) | Nurit, F. | Kaouadji, M. | Ravanel, P. | Tissut, M.