Preparing rock compartments  for blasting on a 100 m high coastal cliff (La Réunion, 2006). © BRGM - Jean-Louis Nedellec


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Mapping environmental asbestos in metropolitan France: from the field to the laboratory

The purpose of mapping environmental asbestos is to reduce the exposure of the population and workers to asbestos fibres from natural outcrops. Through bibliographic syntheses, field sampling and laboratory analyses, BRGM produces maps according to four levels of asbestos hazard.

Martinique: characterization of the hazardous nature of the sediments of the Salt River and ways of using them

Martinique’s DEAL (environment directorate) manages the maintenance of rivers and is responsible for dredging and onshore sediment management where necessary. However, the presence of copper and the contamination of some soils by chlordecone raises the question of the dangerousness of sediments in...

Modelling the impacts of construction waste reuse on groundwater

The construction and industrial sectors generate approximately 250 million tonnes of mineral waste annually. Given their geotechnical and environmental characteristics, some of these mineral wastes (concrete, asphalt, etc.) can replace natural materials in road and development works, after...

Montagne d'Or project in French Guiana: economic positioning and alternative techniques to the extraction of gold from ore by cyanidation

French Guiana is the most promising and attractive French region for potential gold deposits and more and more gold exploration projects are being carried out there. Guyanese gold deposits are classified into 5 types: alluvial, colluvial, residual, oxidized and primary. While gold production in...

PETROVAL: exploiting the geothermal potential of oil wells throughout France

The PETROVAL project, carried out in the framework of the national ADEME-BRGM agreements of 2017 and 2018, made it possible to draw up an inventory of oil drilling sites and their characteristics and to set up a methodology for analysing these data, with a view to converting them for geothermal use...

PHOEBUS: Depth of hydrogeological bodies and assessment of constraints on infiltration of urban rainwater in the territory of Rennes Métropole

This study mapped areas that are favourable or unfavourable to the infiltration of rainwater into the subsurface in the territory of Rennes Métropole, based on a multi-criteria analysis. The results of this work were incorporated into the rainwater regulations of the metropolitan area's inter-...

Qualistat 3, a tool for exploiting groundwater quality data

The Qualistat 3 tool automatically explores and displays the results of chemical analyses, available in ADES, and additional analyses, while easily producing statistics, graphs and cartographic files relating to groundwater quality.

Recommendations for the establishment of a network for monitoring groundwater quality in urban areas

BRGM's work enabled the Ministry of Ecological and Inclusive Transition to publish methodological guidelines in 2019 to help an urban area set up a network of water quality meters for dealing with the issues it faces and to make the data available to local actors.


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