Human activities are a source of spread of many contaminants, including trace metals (copper, lead, platinoids, etc.).

These contamination accumulate in the environment, in particular in the soils which then become not only receptacle but also source of pollution. Once in the soils, pollutants can migrate at different levels of the territory and expose living organisms to health risks.

In the urban context, sources of contamination abound: industrial activity, road traffic, domestic discharges...The pathways of pollutant transfers are also many: infiltration into the ground water, runoff towards water treatment networks and/or rivers, emission of particles into the atmosphere...

Those scattered pollutions are still not widely known, but they raise the question of the management of urban territories (maintaining the current use or changing it).

The Garden "les Eglantiers"

Jardins des EglantiersThe City of Nantes found out that several allotment gardens were abnormally contaminated with lead. This pollution raises the question of the management and the rehabilitation of the land.

POLLUSOLS carries out experimentations in the Eglantiers Garden within the framework of the existing convention with the City of Nantes.
Jardins es Eglantiers - Télé NantesPlants to clean up the soils - Télé Nantes

Cécile Le Guern from the BRGM and Thierry Lebeau from the LPGN explain the problem and the researches led in the Garden Les Eglantiers.

 Click on the image to view the video (in French)

Jardins des Eglantiers - culture sciencesLead in the plants that clean up soils - Culture sciences

Thierry Lebeau (LGPN), in an interview by the magazine Culture Sciences, presents part of the research studies carried out at the Garden Les Eglantiers.
Article of Presse Océan of 2/02/2016: "Eglantiers, life after pollution"
Read interview (in French)

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La Prairie de Mauves

La prairie de MauvesPOLLUSOLS carries out observations, in partnership with Nantes Métropole, on the impact of the former landfill of the Prairie de Mauves on the ground and surface waters.