The polluted sites and soils in Île-de-France In Île‑de‑France, the Paris division oversees the depollution activities for contaminated radiological sites, which usually concerns legacy contamination resulting from past industrial or research activities which used radium. The actors can be industrial players, but also private individuals. The Paris division can, at the request of the Prefect of the département, give technical opinions on the planned pollution management measures and on the effective performance of remediation work (see chapter 13, point 4 of the full ASNR Report). On account of its expertise in the risks presented by contaminated sites and soils, the Paris division of ASNR issued in 2025: • four opinions concerning the management of contamination from the sites of Fort d’Aubervilliers (93), Vaujours (93 and 77), a Parisian apartment (75) and Charvet-VLM (93); • four notices addressed to the Environmental Authority or to regional authorities, concerning Saclay (91), Coudray-Montceaux (91), Grand Paris Sud Seine-Essonne-Sénart (91) and the ZAC du Moulon (91). In addition, the Paris division carried out six inspections in 2025 to monitor remediation or development operations, respectively on the site of the former fort of Vaujours (93 and 77), on the site of a former Marie Curie laboratory in Arcueil (94), on the Charvet – VLM site on Île Saint‑Denis (93), on the site of the Fort d’Aubervilliers (93), on a Mazeau Recyclage site in Gennevilliers (92) and at the Paul Brousse Hospital (94). Furthermore, as part of the monitoring of these long-term clean-out operations which have been in progress for several years, in 2025, the Paris division also took part in the monitoring commissions of the Marie Curie laboratory in Arcueil (94). ASNR also carried out the following actions in 2025: • seven precautionary investigations and safety measures taken following the discovery of radioactive objects in private homes; • various technical meetings with the Prefectoral body and the Regional and Interdepartmental Directorate for the Environment, Development and Transport (DRIEAT) concerning decontamination of the Charvet – VLM site and Galeries Lafayette (93); • drafting of an “information sector” on soils concerning the residual radiological contamination of a plot of land in Gif‑sur‑Yvette after clean-up. Île‑de‑France 70 ABSTRACTS – ASNR Report on the state of nuclear safety and radiation protection in France in 2025
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